CMP Kunlun Fuselage
10-31-2009, 08:16 PM
#3
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Join Date: Oct 2009
Location: lodi, CA
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RE: CMP Kunlun Fuselage
I have a Kunlun sailplane I just finished but the CG seems grossly wrong. In order to meet the recommended CG I would have to add 12+ oz of lead with the 8.23oz battery. Tell me that is incorrect. I built the Omie adding no weight at all. I was expecting nearly the same with this Kunlun
11-01-2009, 01:11 PM
#4
Join Date: Nov 2005
Location: Poolesville, MD
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RE: CMP Kunlun Fuselage
Most sailplanes are designed around heavier NiCD battery packs and heavy motors, so if you are putting in a LiPo pack it is not unusual to find that you have to add a lot of weight to the nose to offset the long tail.
If possible make the additional weight "usable" weight, by using a larger heavier pack, and moving things as far foward as possible.
Also remember that weight added to the nose ( e.g. a heavier spinner ) has a larger lever moment, requiring less overall weight to move the C.G. forward.
If possible make the additional weight "usable" weight, by using a larger heavier pack, and moving things as far foward as possible.
Also remember that weight added to the nose ( e.g. a heavier spinner ) has a larger lever moment, requiring less overall weight to move the C.G. forward.
