RE: Bad idea # 15
Gary, the reason I didn't have trim problems with my F1 with a 10 oz. tank was because I retrimmed the elevator through out the race. My old Kraft transmitter had cross trims, so the elevator trim was right under my left thumb. But Ed is right, it was a pain in the ..., well, you know. We were also burning about 3 oz of fuel an minute, and unlike 15% fuel, 65% is a whole bunch heavier. I even tried a two tank system to get rid of the cg change, with a 8 oz tank on the cg and a 2 oz header tank at the firewall.