Victor,

Probably you were at a pattern contest. Usually in IMAC contest you see large gas engines in 30-40% planes. In pattern the weight limit is 11 lbs that is difficult to meet with a gas engine. If you want a 2 meter pattern plane check the Focus II at Central Hobbies. You will find a lot of pattern information at www.nsrca.org.

Suerte,

Vicente "Vince" Bortone