Foreflight W&B calculator has worked well for my RV-8. Forward limit set for 78.7 in and aft limit 86.8 in. Fuel arm 80 in. EW 1110 lbs and moment 87,257.1 in-lb. Could an error have crept into the empty aircraft weight and moment figures? Good luck. Hope it works for you as it's very convenient! Bill
I went with "aviation W and B calculator" and had an error message issue also. It was asking for momentum in lbs/1000, and is was entering the arm in inches. Worked much better when I gave the program what it needed...
CG, Foreflight
Linear Mode
