RE: Engine for F16N
Dave,
You have a 90 size motor in it now, and you want to replace it with the same size that will swing an 11x8? Not quite following you....
The Jett 90L I have on my F-20 has an APC 11x8 up front...in fact, that's the ONLY prop that motor has ever seen.
The Jett 50's swing 9x8's and 9x9's if your looking to downsize.
What's the flying weight?
You can't go wrong with the Jett line of motors.
Gary