Orma wrote- >My original tail weight was #10. With the #120 of salt, >the tail weighed 60. When I input the #120 into my W & B >in the station for the pilot and passenger, I got one number. >When I put the numbers in as parts of the 120, placing 50 >at the tail and 70 at the passenger seat, the CG moved 2" aft.
You presupposed that the passenger seat and main landing gear weighing point are at the same station. They are probably pretty close, but apparently not exactly at the same station (as revealed by the difference in outcome). Either that, or I misunderstand your spreadsheet entries and weighing points. Oscar Zuniga San Antonio, TX mailto: taildr...@hotmail.com website at http://www.flysquirrel.net