stunthanger.com
Classic Designs => Classic Planes => Topic started by: TroyMartin on July 05, 2017, 09:42:21 PM
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Help !! Can someone tell me what the distance is from the leading edge to the CG location per the plans.. Thanks !
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Not per the plans, but if you start about 3/4" ahead of the spar you should be able to avoid crashing long enough to figure out which direction you want to go.
Edit:
Given that you now know the plans position I'm halfway-deleting my comment. It still stands in that a way-forward CG is a good place to start (because a forward CG is bad, but a backward one can be disastrous), but assuming a halfway competent and diligent designer, the plans CG is much better.
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Per the plans, the CG is at the forward edge of the wing spar, or 2-7/8" aft of the L.E.
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I built a Sig Banshee when they first came out. The nose was much too long for anything but level flight. All Banshees needed to have the nose shortened or a ton of tail weight to stunt at all. Based on the nose length, I wouldn't give much credibility to the designer's intent.
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I built a Sig Banshee when they first came out. The nose was much too long for anything but level flight. All Banshees needed to have the nose shortened or a ton of tail weight to stunt at all. Based on the nose length, I wouldn't give much credibility to the designer's intent.
AFAIK, the designer's intent was to use an unmuffled Fox 35. That, plus the finish you might expect on a stunt TRAINER, would lead to a long nose to achieve balance.
Anything with a muffler needs a shorter nose (and, we know more about aerodynamics now -- so shorten the nose and lengthen the tail at the same time, by moving the wing forward a couple of inches, unless you want it dead stock original).