DU:

That shows you how much I really know aboutFAI regs. I knew the fuel was 80/20, but I didn't know they could not use Monoline.

I never bothered with groupers in two-line speed, just put 10 or 15 twists in the lines, not only holds them together but cuts the frontal area way down too, where they are one in front of the other. Yes, it makes the control a little stiffer after the speed comes up, but if you have a good flight you're already grooving and no control is needed.

Besides, I always figured line pull was wasted power. My engines were always installed with left thrust, and left turn built into the rudder. Sometimes got a little too much, and the first flight could be exciting.

My one surviving speed plane is a 1/2A, totally different from current designs. Built it in 1960.

Bill.