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Bill Strahan
Joined: 20 Aug 2008 Posts: 145
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Posted: Thu Dec 03, 2009 2:41 pm Post subject: Bailing out |
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My parachute should be delivered on Wednesday of next week. One of the things that I want to use it for is spin testing of my Lightning.
For the record, I like spins. But, I have no experience spinning the Lightning and every time I've spun an airplane for the first time I've worn a chute. But having a chute is only useful if you have a safe way of exiting the airplane.
In a 150 aerobat the doors can be ejected for egress. Every other plane I've spun had either a sliding canopy or an open cockpit.
Anyway, I've been thinking about this issue in the Lightning. I've opened the canopy in flight, and have found that it takes quite a shove to get it to go very far at all. In fact, more shove than I'll apply unless it's an emergency because I am concerned I would do damage.
I tend towards the belief that I would get out of the plane if I REALLY needed to. I've imagined laying on my back and trying to kick the canopy out, but that leads to images of the canopy cracking outwards, only to trap my foot in it. Now THAT would be a strange NTSB report.
Any opinions on what the failure mode would be if I rolled onto my back and tried to kick the canopy out? (Please don't say my legs. I'm deadlifting 450 and squatting 350.<grin>)
I've also considered removing the bolts that provide the hinge for the canopy and replacing them each with a pin welded to a steel cable that would pivot 90 degrees around a point aligned with the pin before exiting under the panel on the copilot side where both cables would attach to a handle. A hard yank on that handle should pull both pins out and I hope the front of the canopy would lift off and temporarily pivot around the canopy latch before departing the plane. I'd be ducking below the panel regardless at that point. If I take this route, I'll replace the bolts when I'm done with my sillyness.
Any other thoughts from the Jet Jockeys out there?
Bill
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N1BZRich(at)AOL.COM Guest
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Posted: Thu Dec 03, 2009 6:49 pm Post subject: Bailing out |
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In a message dated 12/3/2009 5:42:30 P.M. Eastern Standard Time, bill(at)gdsx.com writes:
Quote: | --> Lightning-List message posted by: "Bill Strahan" <bill(at)gdsx.com>
My parachute should be delivered on Wednesday of next week. One of the things that I want to use it for is spin testing of my Lightning.
For the record, I like spins. But, I have no experience spinning the Lightning and every time I've spun an airplane for the first time I've worn a chute. But having a chute is only useful if you have a safe way of exiting the airplane.
In a 150 aerobat the doors can be ejected for egress. Every other plane I've spun had either a sliding canopy or an open cockpit.
Anyway, I've been thinking about this issue in the Lightning. I've opened the canopy in flight, and have found that it takes quite a shove to get it to go very far at all. In fact, more shove than I'll apply unless it's an emergency because I am concerned I would do damage.
I tend towards the belief that I would get out of the plane if I REALLY needed to. I've imagined laying on my back and trying to kick the canopy out, but that leads to images of the canopy cracking outwards, only to trap my foot in it. Now THAT would be a strange NTSB report.
Any opinions on what the failure mode would be if I rolled onto my back and tried to kick the canopy out? (Please don't say my legs. I'm deadlifting 450 and squatting 350.)
I've also considered removing the bolts that provide the hinge for the canopy and replacing them each with a pin welded to a steel cable that would pivot 90 degrees around a point aligned with the pin before exiting under the panel on the copilot side where both cables would attach to a handle. A hard yank on that handle should pull both pins out and I hope the front of the canopy would lift off and temporarily pivot around the canopy latch before departing the plane. I'd be ducking below the panel regardless at that point. If I take this route, I'll replace the bolts when I'm done with my sillyness.
Any other thoughts from the Jet Jockeys out there?
Bill
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276056#276056===============================================
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N1BZRich(at)aol.com Guest
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Posted: Thu Dec 03, 2009 8:09 pm Post subject: Bailing out |
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Bill,
Last spring (late March and early April) I flew all the ASTM required flight test profiles (including all the spin test) to get the Lightning certified as a SLSA. The spin test flights were all flown in the prototype Lightning since it had a ballistic parachute installed. The other flights were flown in the silver demo Lightning. Nick and I had many long discussions about bailing out of the Lightning and ways to jettison the canopy. We basically decided that in an out of control situation, trying to force the canopy open and climbing out while the aircraft was spinning was not a real good option. (Flat spins can be amazingly fast) Nick even tried to get some explosive bolts so that we could jettison the canopy, but the regulations required to even buy the explosive bolts made that option unworkable in a reasonable time frame. So that is why I flew the spin test in the prototype. If things went wrong, I would use the whole aircraft ballistic chute. Didn't even wear the chute I owned for the Pitts, So your idea of having pins to pull that would allow you to get rid of the canopy might be a good option if you can work it out. We didn't really work on that option because of the ballistic chute option we had. Note: If you make this type of change to your Lightning, you will have to put it back into phase one testing and who knows how many hours your FAA rep might require.
Up to this past March/April, this was the first time the long wing Lightning had been spun. Nick had previously spun the original short wing with no problems, but not the long wing. ASTM requirements were for the light sport compliant airplane to be spun at all CG ranges and all configurations. From lots of previous flights in many different Lightnings with the long wing, I was not really concerned with possible spiral instability, but the requirement to spin at full flaps did concern me quite a bit since from lots of previous spin experience in the military and in numerous aerobatic aircraft, I knew that flaps would tend to make the spin go flat. One other thing - ASTM requirements were not for a fully developed spin - you could apply anti spin controls during the incipient phase of the developing spin, or to be more specific, the rules allowed me to apply anti spin controls at either 3 seconds of spin or 1 turn - whichever came first. And that is exactly what I did, particularly for the first spins at full aft CG and certainly with the flaps down. It recovered, but not at quickly as the normal clean spin situation.
I have a copy of all the written flight test results somewhere on my computer and will look for the spin test flights and (with Nick's permission) will post a copy of the spin test on the list, or maybe in the newsletter. (What say you, Nick?)
Basically, the clean spin characteristics were excellent for forward CGs and good for aft CGs and recovery was almost immediate as soon as I unloaded the airplane. Clean and aft CG were not quite as quick to stop, but not abnormal at all. Spins with flaps were much more a concern, but standard anti spin controls were effective, but took some time. Don't try spins with flaps.
So if you are going to spin, AND I SEE NO REASON TO DO THAT - THE LIGHTNING FLIGHT MANUAL SAYS NO AEROBATICS AND NO INTENTIONAL SPINS, but if you really must (will your insurance be valid if you are doing something not approved in the POH?) only do so with no flaps deployed and a forward CG. Use idle power and normal pro spin controls. Once you get the break - unload and opposite rudder to stop the turn (normal anti spin controls). I started all my spin test at 8,000.
Sorry this is so long, but I wanted to at least hit the highlights of the story. I guess, my bottom line would be like I said above - I see no reason to spin an airplane that the flight manual (Pilot's Operating Handbook) says is not aerobatic and no intentional spins. I have no idea how experienced you are in spins, but I have seen them go flat or even inverted when they should not have. There are just a lot of variables that you really can't always plan for. All airplanes are different, especially those built by individuals from a kit. What I saw the prototype do, might not be what you see your airplane do. Oh, another thing, have you jumped before or gone through that type of training? Can you find the D ring in an OH SHIT emergency? There really are a lot of things to think about before you make the final decision to do this. I don't want this to sound negative, but just want you to think about all the negative possibilities.
Blue Skies,
Buz
In a message dated 12/3/2009 5:42:30 P.M. Eastern Standard Time, bill(at)gdsx.com writes:
Quote: | --> Lightning-List message posted by: "Bill Strahan" <bill(at)gdsx.com>
. er to My parachute should be delivered on Wednesday of next week. One of the things that I want to use it for is spin testing of my Lightning.
For the record, I like spins. But, I have no experience spinning the Lightning and every time I've spun an airplane for the first time I've worn a chute. But having a chute is only useful if you have a safe way of exiting the airplane.
In a 150 aerobat the doors can be ejected for egress. Every other plane I've spun had either a sliding canopy or an open cockpit.
Anyway, I've been thinking about this issue in the Lightning. I've opened the canopy in flight, and have found that it takes quite a shove to get it to go very far at all. In fact, more shove than I'll apply unless it's an emergency because I am concerned I would do damage.
I tend towards the belief that I would get out of the plane if I REALLY needed to. I've imagined laying on my back and trying to kick the canopy out, but that leads to images of the canopy cracking outwards, only to trap my foot in it. Now THAT would be a strange NTSB report.
Any opinions on what the failure mode would be if I rolled onto my back and tried to kick the canopy out? (Please don't say my legs. I'm deadlifting 450 and squatting 350.)
I've also considered removing the bolts that provide the hinge for the canopy and replacing them each with a pin welded to a steel cable that would pivot 90 degrees around a point aligned with the pin before exiting under the panel on the copilot side where both cables would attach to a handle. A hard yank on that handle should pull both pins out and I hope the front of the canopy would lift off and temporarily pivot around the canopy latch before departing the plane. I'd be ducking below the panel regardless at that point. If I take this route, I'll replace the bolts when I'm done with my sillyness.
Any other thoughts from the Jet Jockeys out there?
Bill
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276056#276056===============================================
_nbsp; (And Get Some AWESOME FREE to find Gifts tric re b k you for p; -Matt Dralle, List ======================== Use the ties Day ================================================ - MATRONICS WEB FORUMS ==================================================
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dashvii(at)hotmail.com Guest
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Posted: Fri Dec 04, 2009 4:31 am Post subject: Bailing out |
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I will look and see if I can find a video of this later C but I remember seeing a two camera view of an aerobatic aircraft demonstrating loss of SA during a spin that went flat and then inverted. In the cockpit there was a brief pause and it was nearly imperceptible when it transitioned to inverted. If you didn't know that you were then in an inverted spin and applied your normal anti-spin controls in the same direction as before then you are tightening your spin.
Also something to think about is the force that a spin can put on your body. Definitely wouldn't count on being able to kick out the canopy C much less even being able to push it out. There are many stories of guys trying to bail out of planes and the best they ever did was to wiggle around until they could unbuckle and then they were thrown clear of the plane C sometimes colliding with the plane on the way down and doing some bodily harm. I had talked a little with Buz and Nick about designing a quick release canopy. There is one that is used for air racing for the Lancair which makes the canopy a rear hinged variety. A few things bother me about this though. I remember reading about I believe it was the F-86's that were loosing canopies in flight. The way that they were loosing them turned out to be somebody installing screws upside down. This was allowing the canopy to come off and twist which was making the pilots loose their heads C literally. If I were going to design the canopy to fly free without taking my head off I might do what some of the Russian ejection seats do C which deploy small vanes and turn it in a favorable direction (up) and keep it tracking a straight line. Most people don't have the ability to thoroughly test something like that on their own though.
Another thing that worries me is what will happen when the canopy is off. We don't know what the Lightning would do. We do know what an Esqual will do and it's not a good thing. If you're then in a spin and need to clear it C does it increase the loading and tightening of the spin? It could be that you find yourself incapacitated. I believe the ultimate limit load factor for the Lightning was around 10G's. Now this isn't the operational limit load factor C I'm talking about the observed failure load factor. I'm willing to bet that most people can't take about half of that for very long without becoming incapacitated in some way. If you look at any books on flight testing they will tell you that spin testing must be approached very carefully as there's a higher than normal chance of loosing your aircraft and possibly loosing your life. Just a few of my own thoughts. Brian W.
From: N1BZRich(at)aol.com
Date: Thu C 3 Dec 2009 23:09:09 -0500
Subject: Re: Bailing out
To: lightning-list(at)matronics.com
Bill C
Last spring (late March and early April) I flew all the ASTM required flight test profiles (including all the spin test) to get the Lightning certified as a SLSA. The spin test flights were all flown in the prototype Lightning since it had a ballistic parachute installed. The other flights were flown in the silver demo Lightning. Nick and I had many long discussions about bailing out of the Lightning and ways to jettison the canopy. We basically decided that in an out of control situation C trying to force the canopy open and climbing out while the aircraft was spinning was not a real good option. (Flat spins can be amazingly fast) Nick even tried to get some explosive bolts so that we could jettison the canopy C but the regulations required to even buy the explosive bolts made that option unworkable in a reasonable time frame. So that is why I flew the spin test in the prototype. If things went wrong C I would use the whole aircraft ballistic chute. Didn't even wear the chute I owned for the Pitts C So your idea of having pins to pull that would allow you to get rid of the canopy might be a good option if you can work it out. We didn't really work on that option because of the ballistic chute option we had. Note: If you make this type of change to your Lightning C you will have to put it back into phase one testing and who knows how many hours your FAA rep might require.
Up to this past March/April C this was the first time the long wing Lightning had been spun. Nick had previously spun the original short wing with no problems C but not the long wing. ASTM requirements were for the light sport compliant airplane to be spun at all CG ranges and all configurations. From lots of previous flights in many different Lightnings with the long wing C I was not really concerned with possible spiral instability C but the requirement to spin at full flaps did concern me quite a bit since from lots of previous spin experience in the military and in numerous aerobatic aircraft C I knew that flaps would tend to make the spin go flat. One other thing - ASTM requirements were not for a fully developed spin - you could apply anti spin controls during the incipient phase of the developing spin C or to be more specific C the rules allowed me to apply anti spin controls at either 3 seconds of spin or 1 turn - whichever came first. And that is exactly what I did C particularly for the first spins at full aft CG and certainly with the flaps down. It recovered C but not at quickly as the normal clean spin situation.
I have a copy of all the written flight test results somewhere on my computer and will look for the spin test flights and (with Nick's permission) will post a copy of the spin test on the list C or maybe in the newsletter. (What say you C Nick?)
Basically C the clean spin characteristics were excellent for forward CGs and good for aft CGs and recovery was almost immediate as soon as I unloaded the airplane. Clean and aft CG were not quite as quick to stop C but not abnormal at all. Spins with flaps were much more a concern C but standard anti spin controls were effective C but took some time. Don't try spins with flaps.
So if you are going to spin C AND I SEE NO REASON TO DO THAT - THE LIGHTNING FLIGHT MANUAL SAYS NO AEROBATICS AND NO INTENTIONAL SPINS C but if you really must (will your insurance be valid if you are doing something not approved in the POH?) only do so with no flaps deployed and a forward CG. Use idle power and normal pro spin controls. Once you get the break - unload and opposite rudder to stop the turn (normal anti spin controls). I started all my spin test at 8 C000.
Sorry this is so long C but I wanted to at least hit the highlights of the story. I guess C my bottom line would be like I said above - I see no reason to spin an airplane that the flight manual (Pilot's Operating Handbook) says is not aerobatic and no intentional spins. I have no idea how experienced you are in spins C but I have seen them go flat or even inverted when they should not have. There are just a lot of variables that you really can't always plan for. All airplanes are different C especially those built by individuals from a kit. What I saw the prototype do C might not be what you see your airplane do. Oh C another thing C have you jumped before or gone through that type of training? Can you find the D ring in an OH SHIT emergency? There really are a lot of things to think about before you make the final decision to do this. I don't want this to sound negative C but just want you to think about all the negative possibilities.
Blue Skies C
Buz
In a message dated 12/3/2009 5:42:30 P.M. Eastern Standard Time C bill(at)gdsx.com writes:
Quote: | --> Lightning-List message posted by: "Bill Strahan" <bill(at)gdsx.com>
. er to My parachute should be delivered on Wednesday of next week. One of the things that I want to use it for is spin testing of my Lightning.
For the record C I like spins. But C I have no experience spinning the Lightning and every time I've spun an airplane for the first time I've worn a chute. But having a chute is only useful if you have a safe way of exiting the airplane.
In a 150 aerobat the doors can be ejected for egress. Every other plane I've spun had either a sliding canopy or an open cockpit.
Anyway C I've been thinking about this issue in the Lightning. I've opened the canopy in flight C and have found that it takes quite a shove to get it to go very far at all. In fact C more shove than I'll apply unless it's an emergency because I am concerned I would do damage.
I tend towards the belief that I would get out of the plane if I REALLY needed to. I've imagined laying on my back and trying to kick the canopy out C but that leads to images of the canopy cracking outwards C only to trap my foot in it. Now THAT would be a strange NTSB report.
Any opinions on what the failure mode would be if I rolled onto my back and tried to kick the canopy out? (Please don't say my legs. I'm deadlifting 450 and squatting 350.)
I've also considered removing the bolts that provide the hinge for the canopy and replacing them each with a pin welded to a steel cable that would pivot 90 degrees around a point aligned with the pin before exiting under the panel on the copilot side where both cables would attach to a handle. A hard yank on that handle should pull both pins out and I hope the front of the canopy would lift off and temporarily pivot around the canopy latch before departing the plane. I'd be ducking below the panel regardless at that point. If I take this route C I'll replace the bolts when I'm done with my sillyness.
Any other thoughts from the Jet Jockeys out there?
Bill
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276056#276056======================
_nbsp; (And Get Some AWESOME FREE to find Gifts tric re b k you for p; -Matt Dralle C List ======================== Use the ties Day ======================= - MATRONICS WEB FORUMS
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info(at)flylightning.net Guest
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Posted: Fri Dec 04, 2009 6:13 am Post subject: Bailing out |
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Buz,
I do not mind you posting the Spin test report or cards. I think it will be informative.
Nick
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of N1BZRich(at)aol.com
Sent: Thursday, December 03, 2009 10:09 PM
To: lightning-list(at)matronics.com
Subject: Re: Lightning-List: Bailing out
Bill,
Last spring (late March and early April) I flew all the ASTM required flight test profiles (including all the spin test) to get the Lightning certified as a SLSA. The spin test flights were all flown in the prototype Lightning since it had a ballistic parachute installed. The other flights were flown in the silver demo Lightning. Nick and I had many long discussions about bailing out of the Lightning and ways to jettison the canopy. We basically decided that in an out of control situation, trying to force the canopy open and climbing out while the aircraft was spinning was not a real good option. (Flat spins can be amazingly fast) Nick even tried to get some explosive bolts so that we could jettison the canopy, but the regulations required to even buy the explosive bolts made that option unworkable in a reasonable time frame. So that is why I flew the spin test in the prototype. If things went wrong, I would use the whole aircraft ballistic chute. Didn't even wear the chute I owned for the Pitts, So your idea of having pins to pull that would allow you to get rid of the canopy [b]might[/b] be a good option [b]if[/b] you can work it out. We didn't really work on that option because of the ballistic chute option we had. Note: If you make this type of change to your Lightning, you will have to put it back into phase one testing and who knows how many hours your FAA rep might require.
Up to this past March/April, this was the first time the long wing Lightning had been spun. Nick had previously spun the original short wing with no problems, but not the long wing. ASTM requirements were for the light sport compliant airplane to be spun at [b]all CG ranges and all configurations[/b]. >From lots of previous flights in many different Lightnings with the long wing, I was not really concerned with possible spiral instability, but the requirement to spin at full flaps did concern me quite a bit since from lots of previous spin experience in the military and in numerous aerobatic aircraft, I knew that flaps would tend to make the spin go flat. One other thing - ASTM requirements were not for a fully developed spin - you could apply anti spin controls during the incipient phase of the developing spin, or to be more specific, the rules allowed me to apply anti spin controls at either 3 seconds of spin or 1 turn - whichever came first. And that is exactly what I did, particularly for the first spins at full aft CG and certainly with the flaps down. It recovered, but not at quickly as the normal clean spin situation.
I have a copy of all the written flight test results somewhere on my computer and will look for the spin test flights and [b](with Nick's permission)[/b] will post a copy of the spin test on the list, or maybe in the newsletter. (What say you, Nick?)
Basically, the [b]clean spin characteristics[/b] were excellent for forward CGs and good for aft CGs and recovery was almost immediate as soon as I unloaded the airplane. Clean and aft CG were not quite as quick to stop, but not abnormal at all. Spins with flaps were much more a concern, but standard anti spin controls were effective, but took some time. Don't try spins with flaps.
So if you are going to spin, [b]AND I SEE NO REASON TO DO THAT - THE LIGHTNING FLIGHT MANUAL SAYS NO AEROBATICS AND NO INTENTIONAL SPINS[/b], but if you really must (will your insurance be valid if you are doing something not approved in the POH?) only do so with no flaps deployed and a forward CG. Use idle power and normal pro spin controls. Once you get the break - unload and opposite rudder to stop the turn (normal anti spin controls). I started all my spin test at 8,000.
Sorry this is so long, but I wanted to at least hit the highlights of the story. I guess, my bottom line would be like I said above - I see no reason to spin an airplane that the flight manual (Pilot's Operating Handbook) says is not aerobatic and no intentional spins. I have no idea how experienced you are in spins, but I have seen them go flat or even inverted when they should not have. There are just a lot of variables that you really can't always plan for. All airplanes are different, especially those built by individuals from a kit. What I saw the prototype do, might not be what you see your airplane do. Oh, another thing, have you jumped before or gone through that type of training? Can you find the D ring in an OH SHIT emergency? There really are a lot of things to think about before you make the final decision to do this. I don't want this to sound negative, but just want you to think about all the negative possibilities.
Blue Skies,
Buz
In a message dated 12/3/2009 5:42:30 P.M. Eastern Standard Time, bill(at)gdsx.com writes:
Quote: |
--> Lightning-List message posted by: "Bill Strahan" <bill(at)gdsx.com>
. er to My parachute should be delivered on Wednesday of next week. One of the things that I want to use it for is spin testing of my Lightning.
For the record, I like spins. But, I have no experience spinning the Lightning and every time I've spun an airplane for the first time I've worn a chute. But having a chute is only useful if you have a safe way of exiting the airplane.
In a 150 aerobat the doors can be ejected for egress. Every other plane I've spun had either a sliding canopy or an open cockpit.
Anyway, I've been thinking about this issue in the Lightning. I've opened the canopy in flight, and have found that it takes quite a shove to get it to go very far at all. In fact, more shove than I'll apply unless it's an emergency because I am concerned I would do damage.
I tend towards the belief that I would get out of the plane if I REALLY needed to. I've imagined laying on my back and trying to kick the canopy out, but that leads to images of the canopy cracking outwards, only to trap my foot in it. Now THAT would be a strange NTSB report.
Any opinions on what the failure mode would be if I rolled onto my back and tried to kick the canopy out? (Please don't say my legs. I'm deadlifting 450 and squatting 350.)
I've also considered removing the bolts that provide the hinge for the canopy and replacing them each with a pin welded to a steel cable that would pivot 90 degrees around a point aligned with the pin before exiting under the panel on the copilot side where both cables would attach to a handle. A hard yank on that handle should pull both pins out and I hope the front of the canopy would lift off and temporarily pivot around the canopy latch before departing the plane. I'd be ducking below the panel regardless at that point. If I take this route, I'll replace the bolts when I'm done with my sillyness.
Any other thoughts from the Jet Jockeys out there?
Bill
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=276056#276056======================
_nbsp; (And Get Some AWESOME FREE to find Gifts tric re b k you for p; -Matt Dralle, List ======================== Use the ties Day ======================= - MATRONICS WEB FORUMS
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Bill Strahan
Joined: 20 Aug 2008 Posts: 145
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Posted: Fri Dec 04, 2009 7:01 am Post subject: Re: Bailing out |
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Buz,
Valid concerns and I appreciate all the input. What's a D ring?
Just kidding. Back when I started flying aerobatics I decided to do the initial training for an accelerated freefall license and make at least the first jump. If I ever had to bail out I didn't want that to be my introduction to parachute use as well!
Once I did that, I had a much better comfort level with how things might be if I ever needed to use the emergency chute.
It's probably more for me and my curiousity than anything. And it's not just spin training. I want to take the plane to VNE, and test it to 5g at gross. Every plane is different, and I will achieve peace of mind from feeling that my plane is proven in these areas.
As to the POH, my understanding is that I am the author of the POH for my plane since it is experimental, not LSA. My operating limitations on the other hand are clear. I will be talking to my FSDO about that prior to any spins and as you point out will have to have those limitations changed.
After I'm done, I can change them again to be more restrictive and/or I can put the restrictions in the POH. Is this how you understand it?
Bill
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max.givan(at)ngc.com Guest
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Posted: Fri Dec 04, 2009 9:01 am Post subject: Bailing out |
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Bill
Sounds like you are experienced in this type of testing and may be very
comfortable doing this. Don't really know your background. Just a few
thoughts.
I design tactical military aircraft for a living and I am very
experienced in aircraft spin analysis and departure/spin flight test. I
am also an experienced pilot and I would not deliberately spin a
previously untested aircraft without a lot of high angle of attack wind
tunnel data and detailed analytic spin analysis and simulation time
histories. Also there are wind tunnels which flow vertically and allow
models to be spun in the tunnel and spin characteristics evaluated. An
acceptable Plan B would be to add a well designed spin chute on the
aircraft. This is NOT one of the off the shelf ballistic chutes
currently available. A spin recovery chute is custom designed and
typically has much longer risers and sturdy construction.
Having said all that, I will be very interested in your results if you
go forward with your spin testing.
Max
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voroninmax(at)gmail.com Guest
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Posted: Fri Dec 04, 2009 9:36 am Post subject: Bailing out |
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Bill,
Quick question - did you go through the whole AFF or just the beginning of it? If just the later - towards the end of the course you are specifically required to do "hop-and-pop" jumps to introduce yourself to the lower altitude exits and deployment, as those are psychologically different.
In any event, I would not count on using a chute in a plane that is a tip-up design and doesn't have a canopy release.
Best regards,
Max
On Fri, Dec 4, 2009 at 9:01 AM, Bill Strahan <bill(at)gdsx.com (bill(at)gdsx.com)> wrote:
[quote]--> Lightning-List message posted by: "Bill Strahan" <bill(at)gdsx.com (bill(at)gdsx.com)>
Buz,
Valid concerns and I appreciate all the input. What's a D ring?
Just kidding. Back when I started flying aerobatics I decided to do the initial training for an accelerated freefall license and make at least the first jump. If I ever had to bail out I didn't want that to be my introduction to parachute use as well!
Once I did that, I had a much better comfort level with how things might be if I ever needed to use the emergency chute.
It's probably more for me and my curiousity than anything. And it's not just spin training. I want to take the plane to VNE, and test it to 5g at gross. Every plane is different, and I will achieve peace of mind from feeling that my plane is proven in these areas.
As to the POH, my understanding is that I am the author of the POH for my plane since it is experimental, not LSA. My operating limitations on the other hand are clear. I will be talking to my FSDO about that prior to any spins and as you point out will have to have those limitations changed.
After I'm done, I can change them again to be more restrictive and/or I can put the restrictions in the POH. Is this how you understand it?
Bill
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N1BZRich(at)aol.com Guest
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Posted: Fri Dec 04, 2009 7:43 pm Post subject: Bailing out |
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In a message dated 12/4/2009 10:04:19 A.M. Eastern Standard Time, bill(at)gdsx.com writes:
Quote: | --> Lightning-List message posted by: "Bill Strahan" bill(at)gdsx.com (bill(at)gdsx.com)
Buz,
Valid concerns and I appreciate all the input. What's a D ring? | Hey Bill, I like you sense of humor - the D ring comment.
.
And yes, the builder is responsible for writing the POH for the airplane he builds. In the case of the Lightning, they provide a good one that only needs the performance section filled out once you have completed your Phase one testing and have those numbers and that data to put in the POH performance section. This is once again, because all kit built aircraft can be slightly different. But I agree that during phase one every builder should be testing his aircraft to verify all the numbers and performance data. Too many builders really don't test their airplanes - they just fly off the 40 hours without ever really knowing their "jets" real stall speeds, real V numbers, flutter test, max gross weight test, etc., etc.
But do remember that the Lightning kit was sold as being non aerobatic and no intentional spins. You have probably already guessed one of the reason why - the canopy, and of course the extra liability. Anyway, if you do decide to do your own spins, do talk to your FSDO (and insurance company) about the limitations. Follow the recommendations I mentioned yesterday (no flaps, idle power, forward CG and then after no more than one turn or 3 seconds (whichever comes first), apply standard anti spin controls). But don't do that on test number one - work your way up to the full turn or 3 seconds. Baby steps - kind of like Max was suggesting.
Let me add one other critical thing I didn't mention yesterday - be sure the ailerons are centered. If they are not, the tendency to accelerate or go flat is great. One trick I picked up when spin testing a new airplane is to actually put a bright piece of tape on the instrument panel that is exactly in front of the stick when the ailerons are neutral. You will be surprised at how many airplanes are enough out of rig so that with neutral stick you actually have roll command to one side or the other. So center the ailerons and then mark the panel with bright yellow tape where the stick is when the ailerons are centered. It also gives you an "aiming" mark on upright spins as to where to push the stick when you want to unload. When I was flying competition in my Pitts, I used a similar technique for lomcevaks.
I was able to find the flight test write ups from when I was doing the ASTM certification flights for the Special Light Sport Lightning and will send them out either later tonight or tomorrow. Just remember that the two spin tests flight profiles were just two of 25 different flight tests that were required. Many flights went before the spins that allowed me to verify certain flight characteristics before actually doing the spin tests. Again, kind of like Max was suggesting. One other thing I didn't mention yesterday was the thinking through all the maneuvers and test flights before actually going up to fly them. For one thing, it helps you be more efficient in the air with the time, but it also allows you to think through the various scenarios of things that may go wrong and how to react to them. I kept remembering things from my Air Force days - such as if the airplane ever does something you didn't ask it to do - unload. Unload for control will get you out of a lot of problems, but you have to do it early enough before something really bad develops into an uncontrollable situation. And the Lightning did not have a drag chute to help get the pointy end of the airplane back into the lead position.
Please feel free to ask any questions you may have, but remember to evaluate whether or not the risks are worth the rewards - or vice versa.
Blue Skies,
Buz
[quote][b]
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Bill Strahan
Joined: 20 Aug 2008 Posts: 145
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Posted: Fri Dec 04, 2009 10:26 pm Post subject: Re: Bailing out |
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Max:
No, I'm definitely NOT experienced with this type of stuff. I've flown some acro, and done a lot of spins. I'm more comfortable with a spin than a loop, but I've done it in planes that had some pretty well known and repeatable spin characteristics. I'm not a great pilot nor do I have the background Buz brings to the table. I just enjoy this stuff, and if I can do it while remaining safe I will.
I did not go beyond my first jump. It was an all day course, followed by the jump. It was not a tandem jump, I jumped and had the instructors with me, and pulled my own cord. That was what I was wanting. I didn't want the AFF license, I just wanted the experience of getting out of a plane, freefall, stabilization, and pulling the cord. I didn't drop it. I DID freeze out on the wing strut, which was one more reason I was happy I did the jump. I know if I ever need to get out to just keep moving, don't pause.
Buz & Max:
You both bring up valid points. I may decide not to explore the spins at all, but the points for me about bailing out remain. What's the point in testing to VNE, or doing any type of flutter testing if you do not have a plan for things going bad?
I don't want to see it go from TARFU during testing to FUBAR because I can't get out.
The temptation is strong to just assume I'll get the canopy open somehow. The responsible thing (if it exists in this context) is to ensure some method of canopy jettison. I'll keep stewing on this one and let you guys know what I end up doing.
Thanks for your input, it was EXACTLY what I was looking for on the list. What a resource.
Bill
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Kayberg(at)aol.com Guest
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Posted: Sat Dec 05, 2009 6:44 am Post subject: Bailing out |
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In a message dated 12/5/2009 1:29:40 A.M. Eastern Standard Time, bill(at)gdsx.com writes:
Quote: |
Max:
No, I'm definitely NOT experienced with this type of stuff. I've flown some acro, and done a lot of spins. I'm more comfortable with a spin than a loop, but I've done it in planes that had some pretty well known and repeatable spin characteristics. I'm not a great pilot nor do I have the background Buz brings to the table. I just enjoy this stuff, and if I can do it while remaining safe I will.
|
This is more of a general response to Bill and others who are considering trying more aggressive maneuvers in their Lightning's. I am not writing as an expert in aerobatics. I am using several third party anecdotes. It is just my mental compilations. It is what I have heard from "hangar flying"
There seems to be several things that are universal to early attempts at flying beyond the recommendations of the kit maker.
1) Assumptions that a little experience is enough to handle a Lightning. That is OK if one is lucky. I have heard of 4 different pilots, at least 2 were former Air Force jet jockeys (not Buz), who tried a sloppy roll in a Lightning and ended up going straight down and needed a high G pullout. The plane saved them because of its strength, but it was not a fun time.
2) Assumptions that a Lightning is "like" something else, therefore it reacts the same way. A couple of the previously mention pilots had high performance aerobatic planes. They still screwed up their first roll.
3) Assuming you wont need to "get out" of the plane if something goes bad. The best case here is the Cessna BugCatcher (SkyCatcher). On two separate occasions, during spin testing, two different airplanes became uncontrollable and ended up crashing. Parachutes saved the pilots, but the point is that even experienced pilots with an intimate knowledge of a particular airframe can end up badly..... Do you fly with personal rules? A good one might be, no aerobatic attempts in a Lightning without A)a canopy release and a parachute or B) an airframe chute. Which is why I am impressed by Bill's willingness to raise the issue in the first place.
4) Assuming the plane's response wont be abrupt. If you read Buz's accounts, you may recall he had a flap problem during testing and the plane rolled upside down ....faster than even he could respond to. You will also note to ENTER a spin, it was necessary to pitch the nose up at very high angles. Same for doing departure stalls. If you work at doing aggressive stalls, the plane can also respond aggressively. Remember Buz has a lot of cautions about becoming inverted and entering flat spins.
5) Ignoring the cautions of people who have done aggressive maneuvers. There is a reason the most experienced and skilled pilots of Lightnings dont talk about what they can do in a Lightning. They are afraid someone who overestimates their piloting skills will try it with fatal results. Not because the airplane is unsafe, but it WAS NOT DESIGNED FOR AEROBATICS!!
6) Not thinking about the effect of their screw up on the "brand". We know what the Feds just did to the Zenair Zodiac XL. It only took a handful of crashes, without a single common cause, out of more than 1,000 flying to "ground" that whole bunch. We have already lost a couple Lightning's with no common cause.... out of a lot less than 1,000 flying. We really need Lightning pilots to act wisely, not just for their sake but for the sake of all of use who love the plane.
7) Not resisting temptation. We all know what it feels like to be buzzing along on a great day strapped in a fine airplane. A few swerves, turns and banks feel good and we think she wants to loop, roll or spin. Take a cold shower first.
FWIW
Doug Koenigsberg
[quote][b]
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dashvii(at)hotmail.com Guest
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Posted: Sat Dec 05, 2009 7:47 am Post subject: Bailing out |
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Doug C I'd like to add to your email there C comment number 3. Both Cessna Skycatchers had a ballistic parachute C the first failed to work properly and the pilot then had to bail out. I don't remember if the second prototype worked correctly or not C I think it did C but the plane was destroyed anyhow after repeated impact with the ground.
I agree with several assessments here. Flight test your aircraft to know that your performance within the specified envelope. Go from what is known to what is unknown in small steps and expect the unexpected and give yourself multiple outs. Either don't risk doing things like spin testing or do so with an experienced test pilot and test profile. Brian W.
From: Kayberg(at)aol.com
Date: Sat C 5 Dec 2009 09:31:46 -0500
Subject: Re: Re: Bailing out
To: lightning-list(at)matronics.com
In a message dated 12/5/2009 1:29:40 A.M. Eastern Standard Time C bill(at)gdsx.com writes:
Quote: |
Max:
No C I'm definitely NOT experienced with this type of stuff. I've flown some acro C and done a lot of spins. I'm more comfortable with a spin than a loop C but I've done it in planes that had some pretty well known and repeatable spin characteristics. I'm not a great pilot nor do I have the background Buz brings to the table. I just enjoy this stuff C and if I can do it while remaining safe I will.
|
This is more of a general response to Bill and others who are considering trying more aggressive maneuvers in their Lightning's. I am not writing as an expert in aerobatics. I am using several third party anecdotes. It is just my mental compilations. It is what I have heard from "hangar flying"
There seems to be several things that are universal to early attempts at flying beyond the recommendations of the kit maker.
1) Assumptions that a little experience is enough to handle a Lightning. That is OK if one is lucky. I have heard of 4 different pilots C at least 2 were former Air Force jet jockeys (not Buz) C who tried a sloppy roll in a Lightning and ended up going straight down and needed a high G pullout. The plane saved them because of its strength C but it was not a fun time.
2) Assumptions that a Lightning is "like" something else C therefore it reacts the same way. A couple of the previously mention pilots had high performance aerobatic planes. They still screwed up their first roll.
3) Assuming you wont need to "get out" of the plane if something goes bad. The best case here is the Cessna BugCatcher (SkyCatcher). On two separate occasions C during spin testing C two different airplanes became uncontrollable and ended up crashing. Parachutes saved the pilots C but the point is that even experienced pilots with an intimate knowledge of a particular airframe can end up badly..... Do you fly with personal rules? A good one might be C no aerobatic attempts in a Lightning without A)a canopy release and a parachute or B) an airframe chute. Which is why I am impressed by Bill's willingness to raise the issue in the first place.
4) Assuming the plane's response wont be abrupt. If you read Buz's accounts C you may recall he had a flap problem during testing and the plane rolled upside down ....faster than even he could respond to. You will also note to ENTER a spin C it was necessary to pitch the nose up at very high angles. Same for doing departure stalls. If you work at doing aggressive stalls C the plane can also respond aggressively. Remember Buz has a lot of cautions about becoming inverted and entering flat spins.
5) Ignoring the cautions of people who have done aggressive maneuvers. There is a reason the most experienced and skilled pilots of Lightnings dont talk about what they can do in a Lightning. They are afraid someone who overestimates their piloting skills will try it with fatal results. Not because the airplane is unsafe C but it WAS NOT DESIGNED FOR AEROBATICS!!
6) Not thinking about the effect of their screw up on the "brand". We know what the Feds just did to the Zenair Zodiac XL. It only took a handful of crashes C without a single common cause C out of more than 1 C000 flying to "ground" that whole bunch. We have already lost a couple Lightning's with no common cause.... out of a lot less than 1 C000 flying. We really need Lightning pilots to act wisely C not just for their sake but for the sake of all of use who love the plane.
7) Not resisting temptation. We all know what it feels like to be buzzing along on a great day strapped in a fine airplane. A few swerves C turns and banks feel good and we think she wants to loop C roll or spin. Take a cold shower first.
FWIW
Doug Koenigsberg
Quote: |
ectric.com
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Bill Strahan
Joined: 20 Aug 2008 Posts: 145
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Posted: Sat Dec 05, 2009 7:54 am Post subject: Re: Bailing out |
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Doug:
Good points! I have thought to myself a few times how Nick probably has his head in his hands saying "No, Bill, control yourself!"
Your description of the bad turnout of the attempted rolls resonates with me. I have to say I wouldn't think twice about a roll in an RV, but with the long wingtips the roll rate on the Lightning is just not fast enough for me to be comfortable with it.
I flew a bunch in a Giles 202 one summer, and the pilot I flew with showed me how people botch a roll. The lesson stuck with me, even though there was no risk in the Giles.
Back to the Lightning, my thought was it would be easy to not pull the nose up enough (or too much!) and botch a roll because of the slower roll rate, especially if you didn't unload it through inverted.
The plane feels sporty, and that can make it tempting. While I'm sure it can be done safely, and I'm also sure many have done it, I haven't.
Bill
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rosestar(at)sonic.net Guest
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Posted: Sat Dec 05, 2009 8:22 am Post subject: Bailing Out |
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Doug's comments are very wise.
I am one of those Zodiac owners. I am parting out my airplane for
specific reasons.
However, some of us pilots are aware of the conditions in which those
airplanes were flown when they crashed...250# over gross, extreme high
speed low pass, aggressive speeds in an airplane at 1200#. These are
pilot issues. The point is that these LSA's are extremely light
aircraft which are advertised to fly at 138 mph. In my opinion that is
WAY over acceptable speeds for the aluminum airframes, and the tube and
fabric airframes. What could have saved lives? Answer: prudent and
conservative flying. These are not aerobatic airplanes. If someone
wants to fly it aggressively, then they risk their own life, but also
impact the future of other owners.
Now...I am on this list because I am contemplating a purchase of a
Lightening for its structural strength. But, I would not consider
aerobatics in it.
("Sad") Brad
former Zodiac builder/pilot.
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n1bzrich(at)aol.com Guest
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Posted: Sat Dec 05, 2009 8:34 am Post subject: Bailing out |
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Doug,
Well stated, Doug, and outstanding advise. You remain a sage of down to earth wisdom. Maybe because of your knowledge that sh*t goes downhill.
Buz
In a message dated 12/5/2009 9:45:05 A.M. Eastern Standard Time, Kayberg(at)aol.com writes:.
Quote: | This is more of a general response to Bill and others who are considering trying more aggressive maneuvers in their Lightning's. I am not writing as an expert in aerobatics. I am using several third party anecdotes. It is just my mental compilations. It is what I have heard from "hangar flying"
There seems to be several things that are universal to early attempts at flying beyond the recommendations of the kit maker.
1) Assumptions that a little experience is enough to handle a Lightning. That is OK if one is lucky. I have heard of 4 different pilots, at least 2 were former Air Force jet jockeys (not Buz), who tried a sloppy roll in a Lightning and ended up going straight down and needed a high G pullout. The plane saved them because of its strength, but it was not a fun time.
2) Assumptions that a Lightning is "like" something else, therefore it reacts the same way. A couple of the previously mention pilots had high performance aerobatic planes. They still screwed up their first roll.
3) Assuming you wont need to "get out" of the plane if something goes bad. The best case here is the Cessna BugCatcher (SkyCatcher). On two separate occasions, during spin testing, two different airplanes became uncontrollable and ended up crashing. Parachutes saved the pilots, but the point is that even experienced pilots with an intimate knowledge of a particular airframe can end up badly..... Do you fly with personal rules? A good one might be, no aerobatic attempts in a Lightning without A)a canopy release and a parachute or B) an airframe chute. Which is why I am impressed by Bill's willingness to raise the issue in the first place.
4) Assuming the plane's response wont be abrupt. If you read Buz's accounts, you may recall he had a flap problem during testing and the plane rolled upside down ....faster than even he could respond to. You will also note to ENTER a spin, it was necessary to pitch the nose up at very high angles. Same for doing departure stalls. If you work at doing aggressive stalls, the plane can also respond aggressively. Remember Buz has a lot of cautions about becoming inverted and entering flat spins.
5) Ignoring the cautions of people who have done aggressive maneuvers. There is a reason the most experienced and skilled pilots of Lightnings dont talk about what they can do in a Lightning. They are afraid someone who overestimates their piloting skills will try it with fatal results. Not because the airplane is unsafe, but it WAS NOT DESIGNED FOR AEROBATICS!!
6) Not thinking about the effect of their screw up on the "brand". We know what the Feds just did to the Zenair Zodiac XL. It only took a handful of crashes, without a single common cause, out of more than 1,000 flying to "ground" that whole bunch. We have already lost a couple Lightning's with no common cause.... out of a lot less than 1,000 flying. We really need Lightning pilots to act wisely, not just for their sake but for the sake of all of use who love the plane.
7) Not resisting temptation. We all know what it feels like to be buzzing along on a great day strapped in a fine airplane. A few swerves, turns and banks feel good and we think she wants to loop, roll or spin. Take a cold shower first.
FWIW
Doug Koenigsberg
|
[quote][b]
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rosestar(at)sonic.net Guest
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Posted: Sat Dec 05, 2009 8:45 am Post subject: Bailing out |
|
|
Doug's comments are very wise.
I am one of those Zodiac owners. I am parting out my airplane for
specific reasons.
However, some of us pilots are aware of the conditions in which those
airplanes were flown when they crashed...250# over gross, extreme high
speed low pass, aggressive speeds in an airplane at 1200#. These are
pilot issues. The point is that these LSA's are extremely light
aircraft which are advertised to fly at 138 mph. In my opinion that is
WAY over acceptable speed for the aluminum airframes, and the tube and
fabric airframes. What could have saved lives? Answer: prudent and
conservative flying. These are not aerobatic airplanes. If someone
wants to fly it aggressively, then they risk their own life, but also
impact the future of other owners.
Now...I am on this list because I am contemplating a purchase of a
Lightening for its structural strength. But, I would not consider
aerobatics in it.
("Sad") Brad
former Zodiac builder/pilot.
n1bzrich(at)aol.com wrote:
Quote: | Doug,
Well stated, Doug, and outstanding advise. You remain a sage of
down to earth wisdom. Maybe because of your knowledge that sh*t goes
downhill.
Buz
In a message dated 12/5/2009 9:45:05 A.M. Eastern Standard Time,
Kayberg(at)aol.com writes:.
This is more of a general response to Bill and others who are
considering trying more aggressive maneuvers in their
Lightning's. I am not writing as an expert in aerobatics. I
am using several third party anecdotes. It is just my mental
compilations. It is what I have heard from "hangar flying"
There seems to be several things that are universal to early
attempts at flying beyond the recommendations of the kit maker.
1) Assumptions that a little experience is enough to handle a
Lightning. That is OK if one is lucky. I have heard of 4
different pilots, at least 2 were former Air Force jet jockeys
(not Buz), who tried a sloppy roll in a Lightning and ended up
going straight down and needed a high G pullout. The plane
saved them because of its strength, but it was not a fun time.
2) Assumptions that a Lightning is "like" something else,
therefore it reacts the same way. A couple of the previously
mention pilots had high performance aerobatic planes. They still
screwed up their first roll.
3) Assuming you wont _need_ to "get out" of the plane if something
goes bad. The best case here is the Cessna BugCatcher
(SkyCatcher). On two separate occasions, during spin
testing, two different airplanes became uncontrollable and ended
up crashing. Parachutes saved the pilots, but the point is that
even experienced pilots with an intimate knowledge of a particular
airframe can end up badly..... Do you fly with personal rules?
A good one might be, no aerobatic attempts in a Lightning without
A)a canopy release and a parachute or B) an airframe chute.
Which is why I am impressed by Bill's willingness to raise the
issue in the first place.
4) Assuming the plane's response wont be abrupt. If you read
Buz's accounts, you may recall he had a flap problem during
testing and the plane rolled upside down ....faster than even
he could respond to. You will also note to ENTER a spin, it was
necessary to pitch the nose up at very high angles. Same for
doing departure stalls. If you work at doing aggressive stalls,
the plane can also respond aggressively. Remember Buz has a lot
of cautions about becoming inverted and entering flat spins.
5) Ignoring the cautions of people who have done aggressive
maneuvers. There is a reason the most experienced and skilled
pilots of Lightnings dont talk about what they can do in a
Lightning. They are afraid someone who overestimates their
piloting skills will try it with fatal results. Not because the
airplane is unsafe, but it WAS NOT DESIGNED FOR AEROBATICS!!
6) Not thinking about the effect of their screw up on the
"brand". We know what the Feds just did to the Zenair Zodiac
XL. It only took a handful of crashes, without a single common
cause, out of more than 1,000 flying to "ground" that whole
bunch. We have already lost a couple Lightning's with no common
cause.... out of a lot less than 1,000 flying. We really need
Lightning pilots to act wisely, not just for their sake but for
the sake of all of use who love the plane.
7) Not resisting temptation. We all know what it feels like to be
buzzing along on a great day strapped in a fine airplane. A few
swerves, turns and banks feel good and we think she wants to loop,
roll or spin. Take a cold shower first.
FWIW
Doug Koenigsberg
*
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ttp://www.aeroelectric.com/">www.aeroelectric.com
m/ href="http://www.buildersbooks.com/">www.buildersbooks.com
"http://www.homebuilthelp.com/">www.homebuilthelp.com
tp://www.matronics.com/contribution">http://www.matronics.com/contribution
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info(at)flylightning.net Guest
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Posted: Sat Dec 05, 2009 8:47 am Post subject: Bailing out |
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I am reading all of this and all good points from all, see the voice has not had to speak in this case. However I would like to point something out,
It snowed last night here in TN and it is freakin cold!!!
Nick
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of n1bzrich(at)aol.com
Sent: Saturday, December 05, 2009 10:30 AM
To: lightning-list(at)matronics.com
Subject: Re: Re: Bailing out
Doug,
Well stated, Doug, and outstanding advise. You remain a sage of down to earth wisdom. Maybe because of your knowledge that sh*t goes downhill.
Buz
In a message dated 12/5/2009 9:45:05 A.M. Eastern Standard Time, Kayberg(at)aol.com writes:.
Quote: |
This is more of a general response to Bill and others who are considering trying more aggressive maneuvers in their Lightning's. I am not writing as an expert in aerobatics. I am using several third party anecdotes. It is just my mental compilations. It is what I have heard from "hangar flying"
There seems to be several things that are universal to early attempts at flying beyond the recommendations of the kit maker.
1) Assumptions that a little experience is enough to handle a Lightning. That is OK if one is lucky. I have heard of 4 different pilots, at least 2 were former Air Force jet jockeys (not Buz), who tried a sloppy roll in a Lightning and ended up going straight down and needed a high G pullout. The plane saved them because of its strength, but it was not a fun time.
2) Assumptions that a Lightning is "like" something else, therefore it reacts the same way. A couple of the previously mention pilots had high performance aerobatic planes. They still screwed up their first roll.
3) Assuming you wont need to "get out" of the plane if something goes bad. The best case here is the Cessna BugCatcher (SkyCatcher). On two separate occasions, during spin testing, two different airplanes became uncontrollable and ended up crashing. Parachutes saved the pilots, but the point is that even experienced pilots with an intimate knowledge of a particular airframe can end up badly..... Do you fly with personal rules? A good one might be, no aerobatic attempts in a Lightning without A)a canopy release and a parachute or B) an airframe chute. Which is why I am impressed by Bill's willingness to raise the issue in the first place.
4) Assuming the plane's response wont be abrupt. If you read Buz's accounts, you may recall he had a flap problem during testing and the plane rolled upside down ....faster than even he could respond to. You will also note to ENTER a spin, it was necessary to pitch the nose up at very high angles. Same for doing departure stalls. If you work at doing aggressive stalls, the plane can also respond aggressively. Remember Buz has a lot of cautions about becoming inverted and entering flat spins.
5) Ignoring the cautions of people who have done aggressive maneuvers. There is a reason the most experienced and skilled pilots of Lightnings dont talk about what they can do in a Lightning. They are afraid someone who overestimates their piloting skills will try it with fatal results. Not because the airplane is unsafe, but it WAS NOT DESIGNED FOR AEROBATICS!!
6) Not thinking about the effect of their screw up on the "brand". We know what the Feds just did to the Zenair Zodiac XL. It only took a handful of crashes, without a single common cause, out of more than 1,000 flying to "ground" that whole bunch. We have already lost a couple Lightning's with no common cause.... out of a lot less than 1,000 flying. We really need Lightning pilots to act wisely, not just for their sake but for the sake of all of use who love the plane.
7) Not resisting temptation. We all know what it feels like to be buzzing along on a great day strapped in a fine airplane. A few swerves, turns and banks feel good and we think she wants to loop, roll or spin. Take a cold shower first.
FWIW
Doug Koenigsberg
Quote: | ====================================ttp://www.aeroelectric.com/">www.aeroelectric.comm/ href="http://www.buildersbooks.com/">www.buildersbooks.com"http://www.homebuilthelp.com/">www.homebuilthelp.comtp://www.matronics.com/contribution">http://www.matronics.com/contribution====================================t href="http://www.matronics.com/Navigator?Lightning-List">http://www.matronics.com/Navigator?Lightning-List==================================== | 012 | 3456789 Quote: | ==================================== | 0 Quote: | ==================================== | 1 Quote: | ==================================== | 2 Quote: | ==================================== | 3 Quote: | ==================================== | 4 Quote: | ==================================== | 5 Quote: | ==================================== | 6 Quote: | ==================================== | 7 Quote: | ==================================== | 8 Quote: | ==================================== | 9 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 0 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 1 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 2 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 3 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 4 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 5 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 6 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 7 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 8 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 9 Quote: | m/ href="http://www.buildersbooks.com/">www.buildersbooks.com | 0 Quote: | m/ href="http://www.buildersbooks.com/">www.buildersbooks.com | 1
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N1BZRich(at)aol.com Guest
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Posted: Sat Dec 05, 2009 9:23 am Post subject: Bailing out |
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Probably makes you think you are back in Wisconsin.
Buz
In a message dated 12/5/2009 11:47:53 A.M. Eastern Standard Time, info(at)flylightning.net writes:
Quote: |
I am reading all of this and all good points from all, see the voice has not had to speak in this case. However I would like to point something out,
It snowed last night here in TN and it is freakin cold!!!
Nick
From: owner-lightning-list-server(at)matronics.com [mailto:owner-lightning-list-server(at)matronics.com] On Behalf Of n1bzrich(at)aol.com
Sent: Saturday, December 05, 2009 10:30 AM
To: lightning-list(at)matronics.com
Subject: Re: Re: Bailing out
Doug,
Well stated, Doug, and outstanding advise. You remain a sage of down to earth wisdom. Maybe because of your knowledge that sh*t goes downhill.
Buz
In a message dated 12/5/2009 9:45:05 A.M. Eastern Standard Time, Kayberg(at)aol.com writes:.
Quote: |
This is more of a general response to Bill and others who are considering trying more aggressive maneuvers in their Lightning's. I am not writing as an expert in aerobatics. I am using several third party anecdotes. It is just my mental compilations. It is what I have heard from "hangar flying"
There seems to be several things that are universal to early attempts at flying beyond the recommendations of the kit maker.
1) Assumptions that a little experience is enough to handle a Lightning. That is OK if one is lucky. I have heard of 4 different pilots, at least 2 were former Air Force jet jockeys (not Buz), who tried a sloppy roll in a Lightning and ended up going straight down and needed a high G pullout. The plane saved them because of its strength, but it was not a fun time.
2) Assumptions that a Lightning is "like" something else, therefore it reacts the same way. A couple of the previously mention pilots had high performance aerobatic planes. They still screwed up their first roll.
3) Assuming you wont need to "get out" of the plane if something goes bad. The best case here is the Cessna BugCatcher (SkyCatcher). On two separate occasions, during spin testing, two different airplanes became uncontrollable and ended up crashing. Parachutes saved the pilots, but the point is that even experienced pilots with an intimate knowledge of a particular airframe can end up badly..... Do you fly with personal rules? A good one might be, no aerobatic attempts in a Lightning without A)a canopy release and a parachute or B) an airframe chute. Which is why I am impressed by Bill's willingness to raise the issue in the first place.
4) Assuming the plane's response wont be abrupt. If you read Buz's accounts, you may recall he had a flap problem during testing and the plane rolled upside down ....faster than even he could respond to. You will also note to ENTER a spin, it was necessary to pitch the nose up at very high angles. Same for doing departure stalls. If you work at doing aggressive stalls, the plane can also respond aggressively. Remember Buz has a lot of cautions about becoming inverted and entering flat spins.
5) Ignoring the cautions of people who have done aggressive maneuvers. There is a reason the most experienced and skilled pilots of Lightnings dont talk about what they can do in a Lightning. They are afraid someone who overestimates their piloting skills will try it with fatal results. Not because the airplane is unsafe, but it WAS NOT DESIGNED FOR AEROBATICS!!
6) Not thinking about the effect of their screw up on the "brand". We know what the Feds just did to the Zenair Zodiac XL. It only took a handful of crashes, without a single common cause, out of more than 1,000 flying to "ground" that whole bunch. We have already lost a couple Lightning's with no common cause.... out of a lot less than 1,000 flying. We really need Lightning pilots to act wisely, not just for their sake but for the sake of all of use who love the plane.
7) Not resisting temptation. We all know what it feels like to be buzzing along on a great day strapped in a fine airplane. A few swerves, turns and banks feel good and we think she wants to loop, roll or spin. Take a cold shower first.
FWIW
Doug Koenigsberg
Quote: | ====================================ttp://www.aeroelectric.com/">www.aeroelectric.comm/ href="http://www.buildersbooks.com/">www.buildersbooks.com"http://www.homebuilthelp.com/">www.homebuilthelp.comtp://www.matronics.com/contribution">http://www.matronics.com/contribution====================================t href="http://www.matronics.com/Navigator?Lightning-List">http://www.matronics.com/Navigator?Lightning-List==================================== | 012 | 3456789 Quote: | ==================================== | 0 Quote: | ==================================== | 1 Quote: | ==================================== | 2 Quote: | ==================================== | 3 Quote: | ==================================== | 4 Quote: | ==================================== | 5 Quote: | ==================================== | 6 Quote: | ==================================== | 7 Quote: | ==================================== | 8 Quote: | ==================================== | 9 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 0 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 1 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 2 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 3 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 4 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 5 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 6 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 7 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 8 Quote: | ttp://www.aeroelectric.com/">www.aeroelectric.com | 9 Quote: | m/ href="http://www.buildersbooks.com/">www.buildersbooks.com | 0 Quote: | m/ href="http://www.buildersbooks.com/">www.buildersbooks.com | 1
Quote: | m/ href="http://www.buildersbooks.com/">www.buildersbooks.com | 2 |
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N1BZRich(at)aol.com Guest
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Posted: Sat Dec 05, 2009 9:25 am Post subject: Bailing Out |
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Brad,
I feel the same way you do that the majority of the 601XL problems were probably being caused by pilot input. Unfortunately, about four years ago I had talked our EAA chapter into buying a 601XL kit and building it as a chapter project. I was the technical counselor on the project and the guy that made sure it was built according to plans. The building process went well and all the chapter members involved learned a lot about acceptable aircraft building standards and reading blueprints, etc. When the airplane was completed, four guys in the chapter bought it, formed a LLC, and have put close to 300 hours on it in the last 2 &1/2 years. I made the initial flights before turning it over to the owners (about 10 hours) and since then the owners have enjoyed it very much, but have only flown it well inside the stated performance envelop.
Today the wings are coming off to get ready to accomplish the latest changes. I don't know how long it will take us to get all those changes accomplished, but the owners knew that in order to sell it in the future, the changes needed to be accomplished - not because they were worried about flying their aircraft.
The point of this message is to let you know I understand what you are going through. You have probably already invested a lot of time into your project and now will be starting again. Bummer. But I also want you to know that looking at all the kits out there, you can't do any better than the Lightning if "time to build" is anywhere on your decision matrix. It is absolutely the best airplane out there that can meet the light sport requirements if that is also a part of your decision process.
So good luck in your hunt for your next project and don't hesitate to contact me if you have any questions. I probably sound like I am on the Lighting payroll, but that is not the case. Heck, I don't even own one. I have flown lots of them and believe in their product and the people that made it happen. Good friends.
Blue Skies,
Buz
In a message dated 12/5/2009 11:22:53 A.M. Eastern Standard Time, rosestar(at)sonic.net writes:
Quote: | --> Lightning-List message posted by: Rosalie <rosestar(at)sonic.net>
Doug's comments are very wise.
I am one of those Zodiac owners. I am parting out my airplane for
specific reasons.
However, some of us pilots are aware of the conditions in which those
airplanes were flown when they crashed...250# over gross, extreme high
speed low pass, aggressive speeds in an airplane at 1200#. These are
pilot issues. The point is that these LSA's are extremely light
aircraft which are advertised to fly at 138 mph. In my opinion that is
WAY over acceptable speeds for the aluminum airframes, and the tube and
fabric airframes. What could have saved lives? Answer: prudent and
conservative flying. These are not aerobatic airplanes. If someone
wants to fly it aggressively, then they risk their own life, but also
impact the future of other owners.
Now...I am on this list because I am contemplating a purchase of a
Lightening for its structural strength. But, I would not consider
aerobatics in it.
("Sad") Brad
former Zodiac builder/pilot. ======================== nbsp; (And Get Some AWESOME FREE to find Gifts tric re b k you for p; -Matt Dralle, List ======================== Use the ties Day ================================================ - MATRONICS WEB FORUMS ==================================================
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Kayberg(at)aol.com Guest
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Posted: Sat Dec 05, 2009 10:26 am Post subject: Bailing out |
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In a message dated 12/5/2009 10:57:21 A.M. Eastern Standard Time, bill(at)gdsx.com writes:
Quote: |
Doug:
Good points! I have thought to myself a few times how Nick probably has his head in his hands saying "No, Bill, control yourself!"
Your description of the bad turnout of the attempted rolls resonates with me. I have to say I wouldn't think twice about a roll in an RV, but with the long wingtips the roll rate on the Lightning is just not fast enough for me to be comfortable with it.
I flew a bunch in a Giles 202 one summer, and the pilot I flew with showed me how people botch a roll. The lesson stuck with me, even though there was no risk in the Giles.
Back to the Lightning, my thought was it would be easy to not pull the nose up enough (or too much!) and botch a roll because of the slower roll rate, especially if you didn't unload it through inverted.
The plane feels sporty, and that can make it tempting. While I'm sure it can be done safely, and I'm also sure many have done it, I haven't.
Bill
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I have heard the short wing will roll fast enough, dont know of a long wing being rolled.
I have no real desire to do rolls in a Lightning, so I have no idea how to do them correctly. The stories of having the nose pointed at the ground and the airspeed passing 195 tend to deter me.
And thanks for your considerations. Again, I am just hoping people will do what you have done and give this thing some real thought before just ramming the stick against the stop.
Doug
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