Hello fellas, I have a quadra 75 that I am thinking about putting in a large p-40, I have no experience with the quadra engines,
What size prop is this thing capable of swinging,, I would really like to put a 3 blade prop on it for a scale look, but want to keep my speed also.
SO what are you guys running as far as props
2 blades??
3 blades??

Thanks fellas

Maybe not the best choice but I've always used 24-10 props on the Q75 .... mostly Xoar props since they have been available, Menz before that. No experience with 3 bladed props. The engine doesn't have quite the power of the newer 75 - 80 engines so don't expect to be pulling the "big wood" with this engine. Also, it seems to like to turn up a bit as you would expect for a chainsaw conversion. No idea on prop RPM as I have never tached this engine.

Two props that work for threeblades are 23X10 and 22X12. Mezjlik is popular in the carbon fiber. If you like wood then Xoar or Falcon. The Q75 is a nice reliable engine, you should have no trouble with it, but its no DA85 by any means. The Q75 would be a fine choice for the Ziroli P-40.

Thanks Fellas,, I am new to this engine,, I am thinking I might go for the 22x12 I assume thats going to be the faster prop,,
It is going in one of the first gen TBM p-40's has a 96" wingspan