RE: OS 33GT Gasoline Engine for Pattern
I probably would try the OS 33GT if I have not made transition to motors/escs/batteries. I once tried the ZDZ 40 FAI on a gas pattern plane and was not impressed by its power much. The maintenance required is just as much as the glow version. Do to discourage the idea but if this 33GT can pull off with pattern application, it is a good thing to know. Glad that you are actively seeking the best.