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bhancock(at)worldwidewarb
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 Posted: Sun Jul 29, 2007 12:07 am Post subject: tank size |
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On Jul 28, 2007, at 11:58 PM, Yak-List Digest Server wrote:
| Quote: |
Barry,
Are you referring to this tank for the 50 also?
Doc |
Yeah....you can extend the aux tank for about 6 gallons. Anything more and you'll have a nice large tank....that won't go back in the airplane. 
Barry
Barry Hancock Worldwide Warbirds, Inc.
office (714) 730-3958
cell (949) 300-5510
www.worldwidewarbirds.com
www.cj6.com
[quote][b]
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viperdoc(at)mindspring.co
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| Posted: Sun Jul 29, 2007 5:40 am Post subject: tank size |
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Barry,
You are talking about welding a 10 in stainless steel section onto the existing AUX tank, correct? That is the mod that TJ told me about.
I have not gotten around to that one yet. Time is the issue.
I have been doing other small projects like working on the Carbon Monoxide problems with taxi, TO, landing, and shut down. The problem is significant for my two YAKs, a local CJ as well as a couple of other local YAKs. The CO levels decrease to well below PEL (permissible exposure limits) in flight. The airframe mods that Craig Payne and Pappy wrote about help in flight to lower the levels. They do not do anything for the most dangerous time, on the ground.
I am working with a company that makes a NASA licensed catalyst but there are a couple of other issues to using this cold conversion catalyst that I can’t talk about because of my contract with them. There are three ways to approach this. As you say though, they all are not cheap. Then if I get into the marketing part of this there is the liability part that the lawyers so love to sue for to consider. That will also run the cost up! You have already seen the hesitation in the community to spend a lot on these aircraft. When cost for doing something gets into the $2000 – 5000 range, their eyes glaze over. Maybe you are in a different community that accepts increased cost easily. The one I’m in down here does not accept the cost lightly and are much more likely to not pay for it.
As soon as I finish gathering data, I will publish an article in the Red Star rag.
Speaking of YAK 50’s, where in Alabama is Roy Wells moving to? His will be the third 50 in the state if he is moving here.
I do have to say they are a blast to fly. Yesterday I was seeing 250 Kph (clics) or 132-135 kts at 62% and 650 mmHg. I burned 10 gallons for that hour I was up. With the current gas on board with the AUX tank ( 33 gal) that would be a 3 hour sortie with .3 reserve to dead empty. Now, I am not going to push it that far because I just never plan any flight for max endurance. To many variables that play into max endurance planning leaving little room for error. The does give me a comfortable 200 to 250 nm range though at that power setting. My but, knee, and bladder cannot tolerate much farther anyway. To many years of training in the fighter community with all our short hops. I cannot imagine what it is like for the my guys that are flying 5 to 7 hour sorties now with multiple trips to tanker! That is why it is the young guys doing it now.
Doc
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Barry Hancock
Sent: Sunday, July 29, 2007 3:06 AM
To: yak-list(at)matronics.com
Subject: Re: tank size
On Jul 28, 2007, at 11:58 PM, Yak-List Digest Server wrote:
Barry,
Are you referring to this tank for the 50 also?
Doc
Yeah....you can extend the aux tank for about 6 gallons. Anything more and you'll have a nice large tank....that won't go back in the airplane.
Barry
Barry Hancock
Worldwide Warbirds, Inc.
office (714) 730-3958
cell (949) 300-5510
www.worldwidewarbirds.com
www.cj6.com
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01234
[quote][b]
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dsavarese(at)elmore.rr.co
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| Posted: Sun Jul 29, 2007 6:01 am Post subject: tank size |
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Doc,
I believe the tanks are aluminum and not stainless steel. Way too heavy if they were SS. If one were to fabricate a aluminum type of "box" where the existing two tanks are located and put a bladder in the box, there would never be a problem of getting the tank in and out of the airplane. The "box" could be fabricated with sheet aluminum in such a way to allow each sheet to fit through the hell hole during assembly. The box could effectively be assembled inside the fuselage using countersunk screws on the inside of the box to prevent potential puncturing of the bladder.
Dennis
[quote] ---
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http://www.matronics.com/Navigator?Yak-List |
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viperdoc(at)mindspring.co
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| Posted: Sun Jul 29, 2007 6:43 am Post subject: tank size |
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Dennis,
We can look at that. It all the space is utilized with the enclosure of the bulkheads, that is going to be more gas than my bladder and but could ever stand! You will be looking at a 6 hour bird! A rough estimate puts the volume at about 70 gallons just using the two bulkheads!
I stand corrected. It is aluminum not SS.
Doc
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of A. Dennis Savarese
Sent: Sunday, July 29, 2007 9:01 AM
To: yak-list(at)matronics.com
Subject: Re: Re: tank size
Doc,
I believe the tanks are aluminum and not stainless steel. Way too heavy if they were SS. If one were to fabricate a aluminum type of "box" where the existing two tanks are located and put a bladder in the box, there would never be a problem of getting the tank in and out of the airplane. The "box" could be fabricated with sheet aluminum in such a way to allow each sheet to fit through the hell hole during assembly. The box could effectively be assembled inside the fuselage using countersunk screws on the inside of the box to prevent potential puncturing of the bladder.
Dennis
| Quote: |
----- Original Message -----
From: Roger Kemp (viperdoc(at)mindspring.com)
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Sent: Sunday, July 29, 2007 8:39 AM
Subject: RE: Re: tank size
Barry,
You are talking about welding a 10 in stainless steel section onto the existing AUX tank, correct? That is the mod that TJ told me about.
I have not gotten around to that one yet. Time is the issue.
I have been doing other small projects like working on the Carbon Monoxide problems with taxi, TO, landing, and shut down. The problem is significant for my two YAKs, a local CJ as well as a couple of other local YAKs. The CO levels decrease to well below PEL (permissible exposure limits) in flight. The airframe mods that Craig Payne and Pappy wrote about help in flight to lower the levels. They do not do anything for the most dangerous time, on the ground.
I am working with a company that makes a NASA licensed catalyst but there are a couple of other issues to using this cold conversion catalyst that I can’t talk about because of my contract with them. There are three ways to approach this. As you say though, they all are not cheap. Then if I get into the marketing part of this there is the liability part that the lawyers so love to sue for to consider. That will also run the cost up! You have already seen the hesitation in the community to spend a lot on these aircraft. When cost for doing something gets into the $2000 – 5000 range, their eyes glaze over. Maybe you are in a different community that accepts increased cost easily. The one I’m in down here does not accept the cost lightly and are much more likely to not pay for it.
As soon as I finish gathering data, I will publish an article in the Red Star rag.
Speaking of YAK 50’s, where in Alabama is Roy Wells moving to? His will be the third 50 in the state if he is moving here.
I do have to say they are a blast to fly. Yesterday I was seeing 250 Kph (clics) or 132-135 kts at 62% and 650 mmHg. I burned 10 gallons for that hour I was up. With the current gas on board with the AUX tank ( 33 gal) that would be a 3 hour sortie with .3 reserve to dead empty. Now, I am not going to push it that far because I just never plan any flight for max endurance. To many variables that play into max endurance planning leaving little room for error. The does give me a comfortable 200 to 250 nm range though at that power setting. My but, knee, and bladder cannot tolerate much farther anyway. To many years of training in the fighter community with all our short hops. I cannot imagine what it is like for the my guys that are flying 5 to 7 hour sorties now with multiple trips to tanker! That is why it is the young guys doing it now.
Doc
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Barry Hancock
Sent: Sunday, July 29, 2007 3:06 AM
To: yak-list(at)matronics.com
Subject: Re: tank size
On Jul 28, 2007, at 11:58 PM, Yak-List Digest Server wrote:
Barry,
Are you referring to this tank for the 50 also?
Doc
Yeah....you can extend the aux tank for about 6 gallons. Anything more and you'll have a nice large tank....that won't go back in the airplane.
Barry
Barry Hancock
Worldwide Warbirds, Inc.
office (714) 730-3958
cell (949) 300-5510
www.worldwidewarbirds.com
www.cj6.com
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dsavarese(at)elmore.rr.co
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