Hei Sandman,

thank you for nice comment. Yes, I love the sound, too....


FW 190 A8 1:5 scale: I would say biggest concern is the power-to-weight ratio. As you chose the A8-version, you could take advantage of a little more heavy engine.

If you need a little less weight and about same power, you could consider the O.S. FT300 - very nice engine, much less service work needed as with a real radial. This engine can also be flown fast and tolerates higher rpm as any radials will do.

A close friend has a Seidel 5 cylinder 125cc in a 23kg Stearman, this combo does very well together. The Seidel runs very well and has lots of power. I cannot tell about the smaller Seidel radials.