Which pattern Eng. 2 cycle or 4 stroke
I am going to fly novice and sportsman SMA pattern, these are pre 75, 60 size pattern planes, both motors are legal but which would perform better Os61 FX or Saito 91 S, planes I have at this time are the AVENGER and the Intruder, also I'm concerned about maintenance on 4 cycles is there more, also vibration is this a problem. Any imput would be deeply appreciated!!!!!!!
Thank You