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Old 03-11-2009 | 02:45 PM
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billd3
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From: Charles City, VA, VA
Default RE: Couple questions?

ORIGINAL: Tired Old Man

... So regardless of where any manufacturer states the C/G should be located I'll alter that location until I have zero elevator trim to fly the plane straight and level. Most manufacturers use what could be called a "safe" C/G location in the area of 25 to 27% of MAC. It's almost impossible to have an unstable plane in that area. Unfortunatey that's usually nose heavy, much too stable, and they require a faster approach speed to prevent what some might call a tip stall, need to fly faster through manuevers to prevent breaking off to one side or the other in a tight maneuver, and "float" down the runway while bleeding off flight speed. It creates much too much work to have fun flying like that.
I know about all that...The purpose of my question was since you already fly a WH 40% Giles and I'm just setting mine up, I figured you could save me some trouble with installing my gear, particularly the rudder servos, for 0/0 trimmed wing & horizontal (I also know that in order for an airfoil to lift, it has to have some degree of a PAOA,therfore making it impossible to set the CG for hands-off/no trim level flight in both upright AND inverted flight.), so that it would be hands-off inverted. I understand mfgrs. are conservative with CG recommendations but, like you, I prefer a neutral CG...With that said, will the center of the tube accomplish this? I am aware, using a DA100 will make interior gear placement critical for achieving proper CG without adding tail weight.

Thanks in advance.