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pitts_pilot(at)bellsouth.
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 Posted: Mon Aug 31, 2009 1:47 pm Post subject: emergency extrication |
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My apologies to the list, and thank you Sam, for the education!
Something to think about. Exiting my Pitts (no, I've never done it) is
probably going to be really tough due to air loads ..... that I never
thought about. It's hard enough to get in/out sitting in front of the
hangar!!! I suppose you could maneuver the airplane to decrease those
wind loads .... but if you can maneuver the airplane .... why leave it.
Well, if it's on fire ....
Linn
Sam Buchanan wrote:
| Quote: |
<am sending this post to the list since Linn's private address bounced>
Linn Walters wrote:
> Sam Buchanan wrote:
>>
>>
>> Linn Walters wrote:
>>>
<pitts_pilot(at)bellsouth.net>
>> <snip>
>> My only suggestion when you're breaking new ground
>>> in the flight envelope is to do it high .... very high ...... and,
of course, wear a 'chute. Better to carry one and not need it than need
it and not have it.
>>> Linn
>>
>>
>> Very unlikely you would ever be able to get out of the RV-6A........
> Why is that? Inquiring minds want to know!
> Linn
Linn,
There are two canopy designs on the side-by-side RVs:
tip up; Originally designed with a quick release mechanism that *may*
have worked properly when the canopies were built without hydraulic
assist (guess in an emergency you wouldn't worry about whether or not it
would take off your head or the vertical stab as it departed the
plane....). But since mid-90's, the hydraulic struts have been shipped
with finish kits and would almost certainly prevent the canopy from
detaching as designed.
slider; can be opened in flight, however.......
The airloads on both designs make it nearly impossible to get either
canopy open more than a few inches in flight. The tip up can be pushed
up with difficulty maybe 6-12", the slider can be pushed back less than
12". In either case a pilot would find it practically impossible to exit
the aircraft. If a builder was serious about aerobatics quick-release
pins might be incorporated into the slider installation. Some have done
this with the RV-8.
As far as I know, there are *no* documented cases of someone bailing out
of a side-by-side RV with either canopy. Matter of fact, there are no
documented cases of anyone even attempting to jettison the tip up canopy.
A parachute in a RV-6/6A might make you feel safer until you actually
needed to use it. 
Sam Buchanan
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wdleonard(at)gmail.com
Guest
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| Posted: Mon Aug 31, 2009 7:37 pm Post subject: emergency extrication |
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Dont forget that if you are trying to get out of the aircraft, it is probably not in normal forward flight. It may be the case that falling condition alters the aerodynamic forces such that opening either canopy may be possible. The aft CG stall in particular comes to mind. Point is... at least give it a try - Oh, and that parachute may have been worth while after all. (Though I admit that I don't wear one.)
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
On Mon, Aug 31, 2009 at 2:27 PM, Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:
[quote] --> RV-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
My apologies to the list, and thank you Sam, for the education!
Something to think about. Exiting my Pitts (no, I've never done it) is probably going to be really tough due to air loads ..... that I never thought about. It's hard enough to get in/out sitting in front of the hangar!!! I suppose you could maneuver the airplane to decrease those wind loads .... but if you can maneuver the airplane .... why leave it. Well, if it's on fire ....
Linn
Sam Buchanan wrote:
| Quote: | --> RV-List message posted by: Sam Buchanan <sbuc(at)hiwaay.net (sbuc(at)hiwaay.net)>
<am sending this post to the list since Linn's private address bounced>
Linn Walters wrote:
> Sam Buchanan wrote:
>> --> RV-List message posted by: Sam Buchanan <sbuc(at)hiwaay.net (sbuc(at)hiwaay.net)>
>>
>> Linn Walters wrote:
>>> --> RV-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
>> <snip>
>> My only suggestion when you're breaking new ground
>>> in the flight envelope is to do it high .... very high ..... and, of course, wear a 'chute. Better to carry one and not need it than need it and not have it.
>>> Linn
>>
>>
>> Very unlikely you would ever be able to get out of the RV-6A.......
> Why is that? Inquiring minds want to know!
> Linn
Linn,
There are two canopy designs on the side-by-side RVs:
tip up; Originally designed with a quick release mechanism that *may* have worked properly when the canopies were built without hydraulic assist (guess in an emergency you wouldn't worry about whether or not it would take off your head or the vertical stab as it departed the plane....). But since mid-90's, the hydraulic struts have been shipped with finish kits and would almost certainly prevent the canopy from detaching as designed.
slider; can be opened in flight, however.......
The airloads on both designs make it nearly impossible to get either canopy open more than a few inches in flight. The tip up can be pushed up with difficulty maybe 6-12", the slider can be pushed back less than 12". In either case a pilot would find it practically impossible to exit the aircraft. If a builder was serious about aerobatics quick-release pins might be incorporated into the slider installation. Some have done this with the RV-8.
As far as I know, there are *no* documented cases of someone bailing out of a side-by-side RV with either canopy. Matter of fact, there are no documented cases of anyone even attempting to jettison the tip up canopy.
A parachute in a RV-6/6A might make you feel safer until you actually needed to use it.
Sam Buchanan
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n343fd(at)yahoo.com
Guest
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| Posted: Tue Sep 01, 2009 10:14 am Post subject: emergency extrication |
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Getting out of a RV with an in flight emergency seems dicey at best then again I can imagine that getting out of those Spitfires and ME 109's in WW II was not easy but they did get out. I remember reading the story of this one Germain Ace and his technique (yep he did it more than once) was to use his feet to push forward on the stick and that popped him out. One time when he was getting ready the guy that just shot him down over shot him so he got back in the seat fired and shot the American down. Then he "ejected" himself and they both had dinner in the officers mess at the Germain base. Next day the American went off to POW camp. OK a little off the point but it might be possible to get out of a flying/falling RV. Of course you need to actually have the parachute on to even give it a try and I have yet to see any one flying an RV with one on.
Mike Divan
N64GH - RV6 (flying)
http://n64gh.blogspot.com/
FREEDOM IS NOT FREE - THANK THE AMERICAN SOLDIER FOR YOURS!
Remember it is the Solder, Sailor, Airman, Marine and Cost Guard that guarantee your freedom NOT the "community organizer"!
From: David Leonard <wdleonard(at)gmail.com>
To: rv-list(at)matronics.com
Sent: Monday, August 31, 2009 8:35:21 PM
Subject: Re: emergency extrication
Dont forget that if you are trying to get out of the aircraft, it is probably not in normal forward flight. It may be the case that falling condition alters the aerodynamic forces such that opening either canopy may be possible. The aft CG stall in particular comes to mind. Point is... at least give it a try - Oh, and that parachute may have been worth while after all. (Though I admit that I don't wear one.)
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
On Mon, Aug 31, 2009 at 2:27 PM, Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:
[quote] --> RV-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
My apologies to the list, and thank you Sam, for the education!
Something to think about. Exiting my Pitts (no, I've never done it) is probably going to be really tough due to air loads ..... that I never thought about. It's hard enough to get in/out sitting in front of the hangar!!! I suppose you could maneuver the airplane to decrease those wind loads .... but if you can maneuver the airplane .... why leave it. Well, if it's on fire ....
Linn
Sam Buchanan wrote:
| Quote: | --> RV-List message posted by: Sam Buchanan <sbuc(at)hiwaay.net (sbuc(at)hiwaay.net)>
<am sending this post to the list since Linn's private address bounced>
Linn Walters wrote:
> Sam Buchanan wrote:
>> --> RV-List message posted by: Sam Buchanan <sbuc(at)hiwaay.net (sbuc(at)hiwaay.net)>
>>
>> Linn Walters wrote:
>>> --> RV-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
>> <snip>
>> My only suggestion when you're breaking new ground
>>> in the flight envelope is to do it high .... very high ...... and, of course, wear a 'chute. Better to carry one and not need it than need it and not have it.
>>> Linn
>>
>>
>> Very unlikely you would ever be able to get out of the RV-6A........
> Why is that? Inquiring minds want to know!
> Linn
Linn,
There are two canopy designs on the side-by-side RVs:
tip up; Originally designed with a quick release mechanism that *may* have worked properly when the canopies were built without hydraulic assist (guess in an emergency you wouldn't worry about whether or not it would take off your head or the vertical stab as it departed the plane....). But since mid-90's, the hydraulic struts have been shipped with finish kits and would almost certainly prevent the canopy from detaching as designed.
slider; can be opened in flight, however.......
The airloads on both designs make it nearly impossible to get either canopy open more than a few inches in flight. The tip up can be pushed up with difficulty maybe 6-12", the slider can be pushed back less than 12". In either case a pilot would find it practically impossible to exit the aircraft. If a builder was serious about aerobatics quick-release pins might be incorporated into the slider installation. Some have done this with the RV-8.
As far as I know, there are *no* documented cases of someone bailing out of a side-by-side RV with either canopy. Matter of fact, there are no documented cases of anyone even attempting to jettison the tip up canopy.
A parachute in a RV-6/6A might make you feel safer until you actually needed to use it.
Sam Buchanan
|
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get="_blank">http://www.matronics.com/Navigator?RV-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
[b]
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http://www.matronics.com/Navigator?RV-List |
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rvhad(at)yahoo.com
Guest
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| Posted: Tue Sep 01, 2009 3:17 pm Post subject: emergency extrication |
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can you even open an RV canopy in mid flight to jump? seems to me the pressure would make the task impossible unless the canopy was broken first.
From: Mike Divan <n343fd(at)yahoo.com>
To: rv-list(at)matronics.com
Sent: Tuesday, September 1, 2009 1:13:23 PM
Subject: Re: emergency extrication
Getting out of a RV with an in flight emergency seems dicey at best then again I can imagine that getting out of those Spitfires and ME 109's in WW II was not easy but they did get out. I remember reading the story of this one Germain Ace and his technique (yep he did it more than once) was to use his feet to push forward on the stick and that popped him out. One time when he was getting ready the guy that just shot him down over shot him so he got back in the seat fired and shot the American down. Then he "ejected" himself and they both had dinner in the officers mess at the Germain base. Next day the American went off to POW camp. OK a little off the point but it might be possible to get out of a flying/falling RV. Of course you need to actually have the parachute on to even give it a try and I have yet to see any one flying an RV with one on.
Mike Divan
N64GH - RV6 (flying)
http://n64gh.blogspot.com/
FREEDOM IS NOT FREE - THANK THE AMERICAN SOLDIER FOR YOURS!
Remember it is the Solder, Sailor, Airman, Marine and Cost Guard that guarantee your freedom NOT the "community organizer"!
From: David Leonard <wdleonard(at)gmail.com>
To: rv-list(at)matronics.com
Sent: Monday, August 31, 2009 8:35:21 PM
Subject: Re: emergency extrication
Dont forget that if you are trying to get out of the aircraft, it is probably not in normal forward flight. It may be the case that falling condition alters the aerodynamic forces such that opening either canopy may be possible. The aft CG stall in particular comes to mind. Point is... at least give it a try - Oh, and that parachute may have been worth while after all. (Though I admit that I don't wear one.)
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
On Mon, Aug 31, 2009 at 2:27 PM, Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:
| Quote: | --> RV-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
My apologies to the list, and thank you Sam, for the education!
Something to think about. Exiting my Pitts (no, I've never done it) is probably going to be really tough due to air loads ..... that I never thought about. It's hard enough to get in/out sitting in front of the hangar!!! I suppose you could maneuver the airplane to decrease those wind loads .... but if you can maneuver the airplane .... why leave it. Well, if it's on fire ....
Linn
Sam Buchanan wrote:
| Quote: | --> RV-List message posted by: Sam Buchanan <sbuc(at)hiwaay.net (sbuc(at)hiwaay.net)>
<am sending this post to the list since Linn's private address bounced>
Linn Walters wrote:
> Sam Buchanan wrote:
>> --> RV-List message posted by: Sam Buchanan <sbuc(at)hiwaay.net (sbuc(at)hiwaay.net)>
>>
>> Linn Walters wrote:
>>> --> RV-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
>> <snip>
>> My only suggestion when you're breaking new ground
>>> in the flight envelope is to do it high .... very high ...... and, of course, wear a 'chute. Better to carry one and not need it than need it and not have it.
>>> Linn
>>
>>
>> Very unlikely you would ever be able to get out of the RV-6A........
> Why is that? Inquiring minds want to know!
> Linn
Linn,
There are two canopy designs on the side-by-side RVs:
tip up; Originally designed with a quick release mechanism that *may* have worked properly when the canopies were built without hydraulic assist (guess in an emergency you wouldn't worry about whether or not it would take off your head or the vertical stab as it departed the plane....). But since mid-90's, the hydraulic struts have been shipped with finish kits and would almost certainly prevent the canopy from detaching as designed.
slider; can be opened in flight, however.......
The airloads on both designs make it nearly impossible to get either canopy open more than a few inches in flight. The tip up can be pushed up with difficulty maybe 6-12", the slider can be pushed back less than 12". In either case a pilot would find it practically impossible to exit the aircraft. If a builder was serious about aerobatics quick-release pins might be incorporated into the slider installation. Some have done this with the RV-8.
As far as I know, there are *no* documented cases of someone bailing out of a side-by-side RV with either canopy. Matter of fact, there are no documented cases of anyone even attempting to jettison the tip up canopy.
A parachute in a RV-6/6A might make you feel safer until you actually needed to use it.
Sam Buchanan
|
===========
get="_blank">http://www.matronics.com/Navigator?RV-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
|
[quote][b]
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robin1(at)mrmoisture.com
Guest
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| Posted: Tue Sep 01, 2009 3:35 pm Post subject: emergency extrication |
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Seems to me two feet on any RV canopy will do the trick. One foot if I built it.
Robin
Do Not Archive
From: owner-rv-list-server(at)matronics.com [mailto:owner-rv-list-server(at)matronics.com] On Behalf Of Hadley Heinrichs
Sent: Tuesday, September 01, 2009 3:41 PM
To: rv-list(at)matronics.com
Subject: Re: emergency extrication
can you even open an RV canopy in mid flight to jump? seems to me the pressure would make the task impossible unless the canopy was broken first.
From: Mike Divan <n343fd(at)yahoo.com>
To: rv-list(at)matronics.com
Sent: Tuesday, September 1, 2009 1:13:23 PM
Subject: Re: emergency extrication
Getting out of a RV with an in flight emergency seems dicey at best then again I can imagine that getting out of those Spitfires and ME 109's in WW II was not easy but they did get out. I remember reading the story of this one Germain Ace and his technique (yep he did it more than once) was to use his feet to push forward on the stick and that popped him out. One time when he was getting ready the guy that just shot him down over shot him so he got back in the seat fired and shot the American down. Then he "ejected" himself and they both had dinner in the officers mess at the Germain base. Next day the American went off to POW camp. OK a little off the point but it might be possible to get out of a flying/falling RV. Of course you need to actually have the parachute on to even give it a try and I have yet to see any one flying an RV with one on.
Mike Divan
N64GH - RV6 (flying)
http://n64gh.blogspot.com/
FREEDOM IS NOT FREE - THANK THE AMERICAN SOLDIER FOR YOURS!
Remember it is the Solder, Sailor, Airman, Marine and Cost Guard that guarantee your freedom NOT the "community organizer"!
From: David Leonard <wdleonard(at)gmail.com>
To: rv-list(at)matronics.com
Sent: Monday, August 31, 2009 8:35:21 PM
Subject: Re: emergency extrication
Dont forget that if you are trying to get out of the aircraft, it is probably not in normal forward flight. It may be the case that falling condition alters the aerodynamic forces such that opening either canopy may be possible. The aft CG stall in particular comes to mind. Point is... at least give it a try - Oh, and that parachute may have been worth while after all. (Though I admit that I don't wear one.)
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
On Mon, Aug 31, 2009 at 2:27 PM, Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)> wrote:
--> RV-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
My apologies to the list, and thank you Sam, for the education!
Something to think about. Exiting my Pitts (no, I've never done it) is probably going to be really tough due to air loads ..... that I never thought about. It's hard enough to get in/out sitting in front of the hangar!!! I suppose you could maneuver the airplane to decrease those wind loads ... but if you can maneuver the airplane .... why leave it. Well, if it's on fire ....
Linn
Sam Buchanan wrote:
--> RV-List message posted by: Sam Buchanan <sbuc(at)hiwaay.net (sbuc(at)hiwaay.net)>
<am sending this post to the list since Linn's private address bounced>
Linn Walters wrote:
> Sam Buchanan wrote:
>> --> RV-List message posted by: Sam Buchanan <sbuc(at)hiwaay.net (sbuc(at)hiwaay.net)>
>>
>> Linn Walters wrote:
>>> --> RV-List message posted by: Linn Walters <pitts_pilot(at)bellsouth.net (pitts_pilot(at)bellsouth.net)>
>> <snip>
>> My only suggestion when you're breaking new ground
>>> in the flight envelope is to do it high .... very high ..... and, of course, wear a 'chute. Better to carry one and not need it than need it and not have it.
>>> Linn
>>
>>
>> Very unlikely you would ever be able to get out of the RV-6A........
> Why is that? Inquiring minds want to know!
> Linn
Linn,
There are two canopy designs on the side-by-side RVs:
tip up; Originally designed with a quick release mechanism that *may* have worked properly when the canopies were built without hydraulic assist (guess in an emergency you wouldn't worry about whether or not it would take off your head or the vertical stab as it departed the plane....). But since mid-90's, the hydraulic struts have been shipped with finish kits and would almost certainly prevent the canopy from detaching as designed.
slider; can be opened in flight, however.......
The airloads on both designs make it nearly impossible to get either canopy open more than a few inches in flight. The tip up can be pushed up with difficulty maybe 6-12", the slider can be pushed back less than 12". In either case a pilot would find it practically impossible to exit the aircraft. If a builder was serious about aerobatics quick-release pins might be incorporated into the slider installation. Some have done this with the RV-8.
As far as I know, there are *no* documented cases of someone bailing out of a side-by-side RV with either canopy. Matter of fact, there are no documented cases of anyone even attempting to jettison the tip up canopy.
A parachute in a RV-6/6A might make you feel safer until you actually needed to use it.
Sam Buchanan
===========
get="_blank">http://www.matronics.com/Navigator?RV-List
===========
http://forums.matronics.com
===========
le, List Admin.
="_blank">http://www.matronics.com/contribution
===========
0123456789012345
[quote][b]
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rveighta(at)comcast.net
Guest
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| Posted: Tue Sep 01, 2009 3:41 pm Post subject: emergency extrication |
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|
Maybe some of you have been on the list long enough to remember a fellow out in Oregon or Washington, whose RV8
caught on fire after a catostrophic engine failure - His first name was Vaughan, can't remember the last name - anyway
the story I heard was that he jumped from the plane to his death (no chute) rather than stay in it. So, it is possible to
get out of an RV. An RV8 at least. This incident happend around 1999 I believe.
Walt
---
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bifft(at)xmission.com
Guest
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| Posted: Tue Sep 01, 2009 4:16 pm Post subject: emergency extrication |
|
|
On Tue, 1 Sep 2009, rveighta(at)comcast.net wrote:
| Quote: |
Maybe some of you have been on the list long enough to remember a
fellow out in Oregon or Washington, whose RV8
caught on fire after a catostrophic engine failure - His first name was
Vaughan, can't remember the last name - anyway
the story I heard was that he jumped from the plane to his death (no
chute) rather than stay in it. So, it is possible to
get out of an RV. An RV8 at least. This incident happend around 1999 I
believe.
|
Von Alexander (I may have the spelling wrong). He had put in release
pins for the screws that hold the front of the canopy down to make bailing
out a possibility. I wear a chute in the starduster when doing
aerobatics, plan on doing so in the RV as well.
Brian Huffaker
RV-8A 80091 working on canopy latch
1/4 Starduster II N23UT flying
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cecilth(at)juno.com
Guest
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| Posted: Tue Sep 01, 2009 4:47 pm Post subject: emergency extrication |
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|
You are right. It was at a very low altitude too.
Cecil
On Tue, 1 Sep 2009 23:36:37 +0000 (UTC) rveighta(at)comcast.net writes:
[quote]
Maybe some of you have been on the list long enough to remember a
fellow out in Oregon or Washington, whose RV8
caught on fire after a catostrophic engine failure - His first name
was Vaughan, can't remember the last name - anyway
the story I heard was that he jumped from the plane to his death (no
chute) rather than stay in it. So, it is possible to
get out of an RV. An RV8 at least. This incident happend around 1999
I believe.
Walt
---
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jvanlaak(at)aol.com
Guest
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| Posted: Tue Sep 01, 2009 4:47 pm Post subject: emergency extrication |
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I sold Von the chute he wore during the test hours on his plane. He had sold it to another RV builder for his test period only a couple weeks before he jumped to his death. Corresponded with his daughter for a while afterwards as the family came to grips with his loss.
--
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cecilth(at)juno.com
Guest
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| Posted: Tue Sep 01, 2009 4:47 pm Post subject: emergency extrication |
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|
I am building a slider and put pull pins at the left and right rollers.
With the idea that I could pull the two pins then push it up and let the
air stream carry the canopy away. It may damage the rudder on it way, but
it is a last resort type of thing. I won't be testing out ether.
Cecil
On Tue, 1 Sep 2009 15:41:08 -0700 (PDT) Hadley Heinrichs
<rvhad(at)yahoo.com> writes:
| Quote: | can you even open an RV canopy in mid flight to jump? seems to me
the pressure would make the task impossible unless the canopy was
broken first.
________________________________
From: Mike Divan <n343fd(at)yahoo.com>
To: rv-list(at)matronics.com
Sent: Tuesday, September 1, 2009 1:13:23 PM
Subject: Re: emergency extrication
Getting out of a RV with an in flight emergency seems dicey at best
then again I can imagine that getting out of those Spitfires and ME
109's in WW II was not easy but they did get out. I remember reading
the story of this one Germain Ace and his technique (yep he did it
more than once) was to use his feet to push forward on the stick and
that popped him out. One time when he was getting ready the guy that
just shot him down over shot him so he got back in the seat fired
and shot the American down. Then he "ejected" himself and they both
had dinner in the officers mess at the Germain base. Next day the
American went off to POW camp. OK a little off the point but it
might be possible to get out of a flying/falling RV. Of course you
need to actually have the parachute on to even give it a try and I
have yet to see any one flying an RV with one on.
Mike Divan
N64GH - RV6 (flying)
http://n64gh.blogspot.com/
FREEDOM IS NOT FREE - THANK THE AMERICAN SOLDIER FOR YOURS!
Remember it is the Solder, Sailor, Airman, Marine and Cost Guard
that guarantee your freedom NOT the "community organizer"!
________________________________
From: David Leonard <wdleonard(at)gmail.com>
To: rv-list(at)matronics.com
Sent: Monday, August 31, 2009 8:35:21 PM
Subject: Re: emergency extrication
Dont forget that if you are trying to get out of the aircraft, it
is probably not in normal forward flight. It may be the case that
falling condition alters the aerodynamic forces such that opening
either canopy may be possible. The aft CG stall in particular comes
to mind. Point is... at least give it a try - Oh, and that
parachute may have been worth while after all. (Though I admit that
I don't wear one.)
--
David Leonard
Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRoster.net
http://RotaryRoster.net
On Mon, Aug 31, 2009 at 2:27 PM, Linn Walters
<pitts_pilot(at)bellsouth.net> wrote:
>
<pitts_pilot(at)bellsouth.net>
>
>>My apologies to the list, and thank you Sam, for the education!
>>Something to think about. Exiting my Pitts (no, I've never done
it) is probably going to be really tough due to air loads ..... that
I never thought about. It's hard enough to get in/out sitting in
front of the hangar!!! I suppose you could maneuver the airplane to
decrease those wind loads .... but if you can maneuver the airplane
.... why leave it. Well, if it's on fire ....
>>
>Linn
>
>>Sam Buchanan wrote:
>
>>>
>>
>>>><am sending this post to the list since Linn's private address
bounced>
>>
>>>>Linn Walters wrote:
>>>> > Sam Buchanan wrote:
>>>> >>
<sbuc(at)hiwaay.net>
>>>> >>
>>>> >> Linn Walters wrote:
>>>> >>>
<pitts_pilot(at)bellsouth.net>
>>>> >> <snip>
>>>> >> My only suggestion when you're breaking new ground
>>>> >>> in the flight envelope is to do it high .... very high
...... and, of course, wear a 'chute. Better to carry one and not
need it than need it and not have it.
>>>> >>> Linn
>>>> >>
>>>> >>
>>>> >> Very unlikely you would ever be able to get out of the
RV-6A........
>>>> > Why is that? Inquiring minds want to know!
>>>> > Linn
>>
>>
>>
>>>>Linn,
>>
>>>>There are two canopy designs on the side-by-side RVs:
>>
>>>>tip up; Originally designed with a quick release mechanism that
*may* have worked properly when the canopies were built without
hydraulic assist (guess in an emergency you wouldn't worry about
whether or not it would take off your head or the vertical stab as
it departed the plane....). But since mid-90's, the hydraulic struts
have been shipped with finish kits and would almost certainly
prevent the canopy from detaching as designed.
>>
>>>>slider; can be opened in flight, however.......
>>
>>>>The airloads on both designs make it nearly impossible to get
either canopy open more than a few inches in flight. The tip up can
be pushed up with difficulty maybe 6-12", the slider can be pushed
back less than 12". In either case a pilot would find it practically
impossible to exit the aircraft. If a builder was serious about
aerobatics quick-release pins might be incorporated into the slider
installation. Some have done this with the RV-8.
>>
>>>>As far as I know, there are *no* documented cases of someone
bailing out of a side-by-side RV with either canopy. Matter of fact,
there are no documented cases of anyone even attempting to jettison
the tip up canopy.
>>
>>>>A parachute in a RV-6/6A might make you feel safer until you
actually needed to use it.
>>
>>>>Sam Buchanan
>>
>>
>>
>>
>>
>>
>
>>===========
>>get="_blank">http://www.matronics.com/Navigator?RV-List
>>===========
>http://forums.matronics.com
>>===========
>>le, List Admin.
>>="_blank">http://www.matronics.com/contribution
>>===========
>
>
>
>
|
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mdredmond(at)gmail.com
Guest
|
| Posted: Fri Sep 04, 2009 2:20 pm Post subject: emergency extrication |
|
|
Guys,
This might be sheer fantasy, but I was thinking about the problem of getting the canopy open in flight and this occurred to me... Keep in mind that I'm early in my build (RV-9, undecided on canopy) so it's based only on casual observation of others' planes. I have no idea if it's technically feasible.
Assuming you have a tip-up canopy and have the canopy remove/jettison handle installed (I assume this pulls the hinge pins) and the appropriate slots cut in your forward top fuselage skin...
Then you reinforce an area of the forward canopy between the hinges and mount a device like this: http://www.cartactdev.com/thrusters.html with a decent throw (maybe 4-6") to the bulkhead that's up there. Rig it to the canopy release cable such that it fires only after the hinge pins are removed (say first 12" pulls the pins and it takes another 12" of pull to fire the piston). These things are capable of exerting 125-6000 psi depending on the model.
The piston would whack the forward underside of the canopy and push it up into the slipstream, whereupon it would blow away (and/or decapitate you, depending on your luck).
Any reason this couldn't work?
Like I said, just daydreaming...
Matt
[quote][b]
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