Hi Irb75,

Thanks for your opinion. So if I'm not mistaken I have to stick with the 4 stroke one-cylinders ... Saito unfortunately doesn't offer other radials between .90 and 1.70. That's a pretty big gap as far as I'm concerned. But that's how it is

I thought about fitting the 90R3 anyway but that's against knowing better I'm afraid.

To keep this T.F. Corsair flight weight to a minimum in order to accept the 90R3 is an almost impossible task with the fuselage and wings covered in glass-coating as well as having a complete scale retractable landing gear.

Well... a FA125 will to the job just fine apart from the fine sound coming with a radial... []