Jeff, that's easy you need a datum line and dist from datum line to front axle also dist from datum to main axles. datum can be anywhere you choose. I would suggest you put it 60 inches in frount of front axle. Thus keeping all moments + and all dimentions in inches. Multiply dist fromp datum to each axle times weights. "example 60 inches times 180 lbs (front axle) gives you a moment of 10,800 pound inches. Now do the mains, add all moments and divide by total weight of aircraft to get cg location in inches from the established datum. Post your info and the net can check your calcs.
Mike Turner Jackson Missouri ----- Original Message ----- From: <jeffyor...@qx.net> To: <kr...@mylist.net> Sent: Sunday, April 16, 2006 8:47 PM Subject: RE : KR> weight and balance standard KR2 tri gear > > > > OK, I have lost my paperwork on figuring the weight and balance for my > standard KR2 tri gear. What paperwork I can find, I can not figure out my > own notes and its important enough that I do not want to be guessing. With > all this CG talk lately and the fact that I have made a few changes over > the last few months. > > I re weighed my plane but i can not remember what my moment is or how to > figure the WB and CG. Everything I find seems to be for figuring it on a > tail drag KR. > > What I have is 252 lbs on each main and 180 on the nose, no fuel but 3 qts > of oil in my Vw2180. > > Can anybody out there help out a suddenly brain dead? > > Jeff York > Lexington, KY. > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html