Ldalmas,

You have me confused on the 1/2A part. In some parts of the world an .09ci (1.5cc) engine is deemed 1/2A, but a TT 15 is a .15ci or 2.5cc engine (class A).

In the USA, a .049ci or .8cc engine is 1/2A...so you see the confusion. My TT .15 is a CL version (venturi, not throttle carb) and is a good running engine. As either diesel or glow it would be WAY too big for 1/2A kits.

I'm not terribly informed on electric, but 1/2A size is usually matched for a .05 electric motor.

Be aware that, when converting to internal combustion engines, you need to reinforce some areas to accept the additional vibration of IC engines.

In any case, good luck in your quest.

George