I have a Mecoa 46 in my trainer that has a semi-symetrical wing airfoil, it has as much power as the OS 46
fx. i fly most of the time at <2/3 throttle. The engine is a great buy directly from Mecoa, specially if you
take advantage of their t rade-in offer. The parts are made in China and assembled by Mecoa in California.
I have a Mecoa .28 .46 and.61 king Cobra. Break them in PROPERLY and they are SUPER. and the
stock mufflers work well and are decently quiet. They are the best buy for a moderate price.