I would like to put a 4 stroke on my Sig se, I have a magnum 61, it doesn't seem to have enough power, and I started out with an os 46fx it was ok, but I wasn't impressed with it as well. Any suggestions?

thanks to all of the replys, but I now have a couple of new questions

1. saito 72; what prop size, did you have to make any modifications to the plane ?
did you have to add tail weight ?

Saito .72 4-Stroke

I agree with Robert. I have had two SEs, both with Saito 72s, although a YS63 works really well too.

-David C.

I agree -- YS .63! However -- mine was a rocket with an Irvine .53 2C and APC 12.25X3.75 prop. The Irvine was a drop in replacement for the 46FX I had on it...

[quote]1. saito 72; what prop size, did you have to make any modifications to the plane ?