Hi, fellow rotary enthusiasts.  I have a Ross 2.85 redrive on a pusher airplane. (SQ2000)  If I
understand it correctly, the ross 2.85 reverses the direction of rotation, and the 2.17 does not?
If that is the case, it would seem that a 2.17 redrive would allow me to use a standard pusher
propeller, as on a LongEZ, Cozy, Veliocity, etc, whereas with the 2.85 I must use a non-standard
propeller?
    I guess the other side of the coin is that I may realize more power at the higher RPMs that
the 2.85 will allow?   Thanks in advance for your replies.  Paul Conner, Mobile, AL

The 2.17:1 rotates backwards for a tractor Lycon so should also be backwards
for a pusher Lycon. the 2.85 rotates correctly for a tractor Lycon so should also
be correct for a pusher LyCon prop.

I would stick to the 2.85 any event for the additional take off power.

Paul Lamar


 
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