O.S. 140 RX Engine O.S. Header and ES pipe. 17 x10N Prop perfect combo for this plane. Been flying this combo for 2 years now. Have 2 Focus II setup the same way and get about 8300 RPM from either engine. Intermediate last year 4th at the NATS. Advanced this year. Plenty of pull for all Advanced manuevers.

All you need to do with the O.S. is put fuel in it and fly. Y.S. if you get a good one will do great but if you have to work on it without the aid of someone who knows how to set it can be a nigthmare. NOT knocking a Y.S. at all so Y.S. guys don't get your feathers ruffled. Flew a Partner with a 1.60 Dingo and could see the tractor pull in the vertical. But for me right now it's the O.S.



Erik