Thanks, that seems more reasonable. So the center of the tank is used for the arm I would assume. After all it's essentially a rectangle. I did find a pic on Marks website (http://www.flykr2s.com/wing.html) so measuring between the spar faces also should give me the number I need. So far my rough numbers are putting me at the aft edge of the envelope. So I am looking for any problems with the ARM's I am using.
Craig N886MJ (N51CW) > On 07/10/2022 11:42 PM Chris Pryce via KRnet <krnet@list.krnet.org> wrote: > > > I calculated the datum using the book method of weighing all three wheels, > adding fuel and weighing again. My wing tanks are at 21.6 aft of the leading > edge. -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet