In need of a prop

[Robert M]

can anyone tell me what propellers are compatible for the IO-360-A1A?

[TheAv8r]

I'd recommend checking your TCDS, but on my M20E with an IO-360-A1A I have a Hartzell HC-C2YK-1BF 2-blade propeller.

[Yetti]

@Cody Stallings would be your Mooney Prop guy

[DCarlton]

I went with the three blade McCauley but the more I've read over the years, they don't seem to make as much technical sense as a two blade with the IO-360... but they look better.  Something to discuss with your prop expert.  

[Hank]

1 hour ago, DCarlton said:

I went with the three blade McCauley but the more I've read over the years, they don't seem to make as much technical sense as a two blade with the IO-360... but they look better.  Something to discuss with your prop expert.  

I've been happy with my McCauley 3-blade, but it was on my C when I bought it so I have nothing to compare it to.

[DCarlton]

7 hours ago, Hank said:

I've been happy with my McCauley 3-blade, but it was on my C when I bought it so I have nothing to compare it to.

I'm happy too but I think I've read that the two blade is more efficient and marginally better for speed and the three is marginally better for climb.  Don't remember if I seen data.  Also seems like I remember the three blade being suboptimal (my words for lack of a better word) from a vibration stand point when paired with a four cylinder engine but don't remember the details on that either.  Would probably do the research all over again and go with the best value / cheapest if I needed a prop but I'm very satisfied too.  I'm sure there's an expert around here on MS.  

[Hank]

22 minutes ago, DCarlton said:

. . . if I needed a prop but I'm very satisfied too.  I'm sure there's an expert around here on MS.  

@Cody Stallings is our prop expert.