I am working on a 1/2A electric stunt plane and would like to know typical gas plane lap times on 40' to 45' lines.

Roger

I am flying with an electric Baby Clown and want to do overhead eights etc. Right now it seems to require 3.2-3.5 sec lap times on 40' lines. But this may be because it doesnt have flaps. I will try slowing it down to the 4 sec range to see what it does. But it is heavier than a gas palne and the extra speed may be required to compensate for the added weight.
Tanks very much for the reply.

Alan

Your second video allowed me to time your laps. They were about 3.7 sec if I remember correctly. That helps a lot. Tonight my laps were about 3.5 sec on 40' line(s) and the plane flew stunts very well. I tried a little longer lap times but not enough tension for overhead 8s. Do you know if your Baby Clown was on 35 or 40' lines?

The threads were very helpful.

Longer lines are the key.  With my .061-powered stunters I kept lengthening up to 52', finally settled on 48' as a good compromise.  Decent (read: slow) lap times while maintaining needed air speed.  I have a Norvel .049-powered one I have flown on the 48' lines too, it did OK but I think 45' would be more nearly ideal for the smaller engines. I like 4.0-4.4 or so laps, I can't get any slower than that and still have the needed airspeed.

Oh, a big wing helps too...200-250 sq. in. or so, more if you can do it and stay around 10-12 oz. total weight. One of my early LittleAxe versions pigged out at around 15-16 oz., it flew OK but required more speed to carry the weight. Lighter is better.