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Aft CG?

 
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John Hauck



Joined: 09 Jan 2006
Posts: 4627
Location: Titus, Alabama (hauck's holler)

PostPosted: Thu Nov 08, 2018 6:28 pm    Post subject: Aft CG? Reply with quote

<<...>> <<...>> <<...>>
I ran across a few photos of my original Firestar, 1985, during a complete rebuild winter 1987/88. If you notice, that is an 18 gal 5052 aluminum fuel tank situated behind the main bulkhead. Guessing about 125 lbs total fuel, tank, and Facet Pump. On long cross country flights a lot of gear was shoved under the tank in my now available cargo compartment, all behind the main bulkhead.
No, I didn't put a heavy battery in the nose (not installed) or lead weight to counterbalance the fuel tank. Aircraft was perfectly balanced and a joy to fly. All flying surfaces were built to plans. Also had a ton of two part Aerothane paint and dope on it. Have no idea where the paper CG was. Never did a weight and balance on the FS.
No adverse pitch problems 30 years ago.
john h
mkIII
Titus, Alabama


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John Hauck
MKIII/912ULS
hauck's holler
Titus, Alabama
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PostPosted: Fri Nov 09, 2018 4:01 am    Post subject: Aft CG? Reply with quote

Thanks for the pictures, John I think that’s the largest fuel tank I’ve ever seen on a original FS.
I have a custom made aluminum tank in my Firestar.
It’s vented to not except more then 5 gallons. It originally held 6 gallons. I’m in the process of making a removable panel for easier access to it. I developed a small crack in the a upper seam in it this year so I had to cut the Stitts off part of the rear firewall. Mine is a 1986 built to plans kit. Also Aerothane. Stills flies great after all these years. I did switch out the 377 for a new 2702 Hirth last winter. It’s still great little long distance flyer. [img]cid:5F8B2FE5-308D-46BA-8943-15CDBAF44383[/img]
George H
Firestar, FS100, 2702 Hirth
14GDH
Mesick, Michigan
gdhelton(at)gmail.com (gdhelton(at)gmail.com)
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On Nov 8, 2018, at 9:28 PM, John Hauck <jhauck(at)elmore.rr.com (jhauck(at)elmore.rr.com)> wrote:
Quote:
Aft CG?
<<..>> <<...>> <<...>>
I ran across a few photos of my original Firestar, 1985, during a complete rebuild winter 1987/88. If you notice, that is an 18 gal 5052 aluminum fuel tank situated behind the main bulkhead. Guessing about 125 lbs total fuel, tank, and Facet Pump. On long cross country flights a lot of gear was shoved under the tank in my now available cargo compartment, all behind the main bulkhead.
No, I didn't put a heavy battery in the nose (not installed) or lead weight to counterbalance the fuel tank. Aircraft was perfectly balanced and a joy to fly. All flying surfaces were built to plans. Also had a ton of two part Aerothane paint and dope on it. Have no idea where the paper CG was. Never did a weight and balance on the FS.
No adverse pitch problems 30 years ago.
john h
mkIII
Titus, Alabama
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