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gill.g(at)gpimail.com
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 Posted: Tue May 05, 2009 10:34 am Post subject: Yak-List:Save on CJ and YAK Extended Range Fuel Capacity |
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Gangs,
Fuel bladders are available for both CJ6s and YAK52s manufactured by an FAA fabricator. Cutting wing rib is not required for either, bladders fit within the existing cavity. CJ capacity is 30 gallons per side and YAK52 is 24 gallons per side. There are numerous CJ installations in the US. YAK52 bladders have been installed in the US, Europe and Australia and have been flown in airshow aerobatic environments. Foam in the bladders provides baffling. Installation time is 2-3 days for the YAK and about one week for a CJ. CJ owner can contact Bill Blackwell or me. YAK owners can contact Dennis Savarese or me.
Gill
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Barry Hancock
Sent: Monday, May 04, 2009 5:02 PM
To: yak-list(at)matronics.com
Subject: CJ Extended Range Fuel Tank Installation
Gang,
People have been asking about the progress of our fuel tanks. Well, here are pics of our second installation. We are well along on our 3rd installation and have standardized the process. A bit over 31 gallons a side gives you "BBR" capability (Beyond Butt Range or Beyond Bladder Range).
[img]cid:image001.jpg(at)01C9CD74.43FD3D60[/img]
CJ Extended Range tanks
31 Gallon Long Range fuel tank installed. 3rd strap added to support additional weight. Meets all FAA structural sheetmetal modificaiton criterion. Fuel cap with capacitance sending probe at high end of tank allowing for reading of full capacity of tank. Vent fitting not attached.
[img]cid:image002.jpg(at)01C9CD74.43FD3D60[/img]
CJ Extended Range tanks
US quick drain installed for ease of defuling. Original strap and fuel fitting locations and specifications.
[img]cid:image003.jpg(at)01C9CD74.43FD3D60[/img]
CJ Extended Range tanks
Strap bracket installation.
[img]cid:image004.jpg(at)01C9CD74.43FD3D60[/img]
CJ Extended Range tanks
Tank goes through rib which is properly reinforced.
[img]cid:image005.jpg(at)01C9CD74.43FD3D60[/img]
CJ Extended Range tanks
Fuel cap with capacitance sending probe at high end of tank allowing for reading of full capacity of tank. Vent fitting not attached.
Price is $7000 installed, or $3000 for tanks with all parts required for installation. Give us a call if you have any questions.
Barry Hancock
Worldwide Warbirds, Inc.
www.worldwidewarbirds.com
(909) 606-4444 office
(949) 300-5510 cell
"The complete center for warbird excellence"
Express Mailing address:
7000 Merrill Ave, B-110, Unit J
Chino, CA 91710
Regular Mailing address:
7000 Merrill Ave., Box 91
Chino, CA 91710
The information contained in this e-mail message is intended only for the personal and confidential use of the designated recipients. If the reader of this message is not an intended recipient, you are hereby notified that any review, use, dissemination, forwarding or copying of this message is strictly prohibited. Please notify us immediately by reply e-mail or telephone, and delete the original message and all attachments from your system. Thank you
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barryhancock
Joined: 09 Oct 2008
Posts: 285
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| Posted: Wed May 06, 2009 11:11 am Post subject: Re: Yak-List:Save on CJ and YAK Extended Range Fuel Capacity |
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Gil,
That's great that you've developed an extra fuel alternative for the Yaks, nice job.
I wanted to clarify a few things about our CJ fuel tanks.
1) Our design is engineered to maintain the original support structure for the tank and exceed the strength of the original configuration.
2) We maintain the original vent line and configuration.
3) The modification of the rib is by the book, and FAA DER approved.
4) We have not changed the use of any structure such as stress doors, etc.
5) ALL parts for installation are included in the kit. Attach brackets, straps with felt installed, bonding straps, Electronics International FL-2C capacitance fuel gauge and probes, and installation instructions. NO extra costs.
6) A competent sheet metal guy should be able to complete the installation in less than 40 hours.
SPECIAL OFFER, order your tanks by May 15 and get $500 off the kit and $500 off installation price.
I'll be posting more info on our web site shortly....
Happy flying!
Barry
PS Did I mention Keith Harbor does air bottles?
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_________________
Barry Hancock
Worldwide Warbirds, Inc.
www.worldwidewarbirds.com |
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gill.g(at)gpimail.com
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| Posted: Thu May 07, 2009 9:41 am Post subject: Yak-List:Save on CJ and YAK Extended Range Fuel Capacity |
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Barry,
The substantial removal of the wing rib to enlarge the fuel cavity reduced
the cross bracing provided by the original rib. Complex engineering
calculation and test would be required to fully evaluate the effect of your
modification to the wing structure. I assume your engineer considered this.
Has static testing been done to verify your structural design? The tank
suspension system looks good.
Gill
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