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09-30-2008, 12:31 PM
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#1 |
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Flyin' Around
 
Join Date: Sep 2007
Location: Grand Rapids Ohio
Posts: 26
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Fuel tank placement for CG.
OK the plane I just bought has never been finished and the tank is in the bottom of the fuselage behind the wing tube should the tank be over the wing tube or in front of it for the CG of the plane when full tank.
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09-30-2008, 12:45 PM
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#2 |
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Dragon's Tail Survivor!!
 
Join Date: Mar 2007
Location: Lebanon, OH
Age: 27
Posts: 26,884
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Re: Fuel tank placement for CG.
i have always had the tank in front of or on top of the wing tube, never have had one behind the tube
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09-30-2008, 12:46 PM
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#3 |
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Dragon's Tail Survivor!!
Join Date: Mar 2007
Location: Lebanon, OH
Age: 27
Posts: 26,884
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Re: Fuel tank placement for CG.
is your cg supposed to be on the wing tube?
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09-30-2008, 12:50 PM
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#4 |
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Flyin' Around
Join Date: Sep 2007
Location: Grand Rapids Ohio
Posts: 26
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Re: Fuel tank placement for CG.
I don't know where the CG is to be.
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09-30-2008, 01:10 PM
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#5 | ||||||||||||||||||
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SILVER FOX
 
Join Date: Jan 2006
Location: Acworth GA
Posts: 1,182
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Re: Fuel tank placement for CG.
From there, you will have a spot to place the tank. Ideally, you want the tank situated right over the CG, so that during flight, you won't have a shift in CG when the tank empties. This will happen if the tank is placed either in front of or behind the CG and could create a trim change towards the end of the flight. Wayne |
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09-30-2008, 04:45 PM
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#6 |
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Bad-ass Super Contributer!
Join Date: Jun 2006
Location: Louisville,KY
Age: 53
Posts: 3,049
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Re: Fuel tank placement for CG.
I'm guessing, NOT behind the wing tube.
__________________
A.M.A. #518216 |
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08-14-2011, 04:50 PM
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#7 |
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Flyin' Around
 
Join Date: Aug 2011
Location: United States, NC, Charlotte
Posts: 8
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Your CG placement is 111 mm to 115 mm from the leading edge this looks like one of the planes that I have which is a Sig extra 300 XL I am using a Saito 1.80 with a 2000 mAh battery pack. I can if this is the same type aircraft and manufacturer send you some pictures of my set up. Correct me if I am wrong but has this plane crashed before damaging the cowl and wheel pants? Or did you primer them yourself? Also the wing tube is not standard on this aircraft.
__________________
All planes come back to earth in one piece...it's only when the laws of physics and gravity take over that your wallet breaks apart. 
Last edited by Tophat; 08-14-2011 at 04:54 PM. Reason: grammer |
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