Great looking plane. I have a two SeaMasters - both ARF's One with an old OS 51 Surpass the other with a newer OS .46AX The AX flies faster, but for my piloting skills I prefer the 4 cycle Surpass swinging a three bladed prop (the appropriatetwo blade would hit the cowl). Fora videoin flight see my poston You Tube:http://www.youtube.com/watch?v=wgf4SJeWsFA