I have flown mine on a .48 Fs, .46 2s, .61, .65, 2s and a 70 Fs.  I liked the 70 the best.  It would idle around the sky all day long on a 12oz tank.  teh 61 and 65 were way to much engine.  The .48 was nice and scale.  A little low on power.  maybe a magnum .52 Fs would work well.


Dru.