[RKDinOKC]

Yes, 2 stroke, but the 4 stroke engines were fun too. They hand more torque so you turned a bigger prop at lower rpm. There was even a 4 stroke with belt driven cam. When the belts started breaking they got unpopular fast.

Everyone dreamed of the super expensive 5 cylinder radial motors. Never saw one in person.

Talking to the local hobby shop guy seems most are going battery powered and flying has moved to parks instead of flying clubs and fields. Too, bad, because the field and camaraderie was a fun part of it.

The small jet engines came on the scene about the time I got out. Didn't seem like much fun to me because they were so fast all you really had time to do was turn before it got too far away to see.