I just got a Seagull Ultimate that requires a 91 to 1.25 engine I bought a OS91 II 4 stroke and was looking for a prop for it. The user guide that came with the motor said to use a 11x11-12 or a 12x10-12 or a 15x6 or a 16x6. I dont know what prop to use and in addition to that my local hobby shop doesnt carry any of these except for the 15x6 will this be ok? I looked in a master screw book and didnt see any of these othere props either. For the first time in my RC life I have no idea what to do.................Please help!!!
] Im really concerned that the plane will be very sluggish and hard to handle if the prop is too big and I really dont want to loose this plane before im able to enjoy it.
chuck (speed367)