ORIGINAL: dgeorge
On your YS 110 try an APC 16.5 x 5
I had heard APC came out with them but never looked into them. I would suspect they are much better. The 17X4 gives great pull but the spool up is kinda slow so I must be way ahead of the plane. The 16X6 is a great match foir the engine but makes certain maneuvers difficult to do.
I'll look into it, thanks