RONSIM
Well Known Member
Just performed a new weighing on my -6A to re-do the weight and balance calculations. The datum for the (1992 vintage, tip up) -6A is 60" forward of the wing leading edge, which, on my airplane puts it right at the spinner tip (IO360, Hartzel CS). When I take the measurement from the datum to my main gear axle, I get right at 81.88 inches.
I ran across a W&B calculator for a -6A, on the web (or in the forum), which had the main gear arm at 84+ inches aft of datum. I am sure my measurements or correct, so where does this 84+ inches come from?
FYI -- My airplane - empty weight, no fuel, full oil, level, in flight configuration:
Nose Gear - 301lb
Left Main--- 442
Right Main--446
Total 1189 at 68.17 inches (Allowable range 68.7 to 76.8)
(As soon as I put fuel in it, CG moves into allowable range)
I ran across a W&B calculator for a -6A, on the web (or in the forum), which had the main gear arm at 84+ inches aft of datum. I am sure my measurements or correct, so where does this 84+ inches come from?
FYI -- My airplane - empty weight, no fuel, full oil, level, in flight configuration:
Nose Gear - 301lb
Left Main--- 442
Right Main--446
Total 1189 at 68.17 inches (Allowable range 68.7 to 76.8)
(As soon as I put fuel in it, CG moves into allowable range)