I completed my NGH 38GF powered CMP BF-109 last week and began breaking in the engine. Unfortunately, the engine had so much vibration that it broke the motor mount and the throttle linkage on the first tank full of fuel. I have ordered an NGH 35 CC rear exhaust two-stroke engine to replace the 38 CC four stroke. Hopefully, the new engine will not be as hard on the airframe.



Best wishes and good safe flying.

Heli-NuBee (AKA Roger the radial rabbit)