I would tend to go with Razor on this. You not only want the engine for the trainer but also for what ever plane you move to when you are finished with the trainer.

If you want to stay with a 2 stroke then TT .46 or OS. 46 or the irvine .53 are good engines.

then ofcoarse you have the Saito .72 and the Y.S. .63 but more mula lol.


But that is just my Dime Whatever you do just have fun and remember all planes are just pretty lawn darts lol.