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CG check.
Hey guys, help me out here just a second.
I'm building a tailess plane powered by a .15 and I need your help verifying the balance point. 36" span 8" @root 5" @tip 2" sweep @tip I'm thinking I should balance it at about 20% MAC using http://www.palosrc.com/instructors/cg.htm I get the result of: MAC: 6.62" @ 8.31" from root Balance point @root chord: 2.25" When I plot out the CG location it doesn't look right. I would appreciate if someone better versed in the science of aerodynamics could double check my work please. |
RE: CG check.
Build a scale chuck glider!
old git - - - - - aka John L. |
RE: CG check.
25% back from leading edge at the MAC.
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RE: CG check.
ORIGINAL: Lomcevak Duck Hey guys, help me out here just a second. I'm building a tailess plane powered by a .15 and I need your help verifying the balance point. 36" span 8" @root 5" @tip 2" sweep @tip I'm thinking I should balance it at about 20% MAC using http://www.palosrc.com/instructors/cg.htm I get the result of: MAC: 6.62" @ 8.31" from root Balance point @root chord: 2.25" When I plot out the CG location it doesn't look right. I would appreciate if someone better versed in the science of aerodynamics could double check my work please. |
RE: CG check.
12% is 1.72 inches aft at the root.. a very reasonable place to start.
25% won't work. |
RE: CG check.
I can use some help. I'm buliding a 46 size pusher using a Pica Touche kit for the wing and using the kit tail moment. I am having to build a long nose to get the C/G at the proper location on the wing, [Stock C/G on stock Touche plans,] My question is with the long nose [24'' in front of the LE.] Will I have to move the CG forward?
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