Desert Rat
Well Known Member
I should probably know the answer to this, but I don't recall the last time I flew a 4 cylinder with a 3 bladed prop, or how it behaved at shutdown. Of the 2 ways you can index a prop on a 4 cylinder Lycoming, which way is more likely to have a 3 blade stop with one blade pointed straight up at shutdown?
W.W. says their prop doesn't care which way it goes, and that the engine will just stop wherever it stops, but based on the fact that 2 blade props almost always stop at 10:00 and 4:00, it seems like there must be a sweet spot.
The options are to have a blade aligned with the TDC mark on the back of the flywheel, or 180 degrees out from that.
W.W. says their prop doesn't care which way it goes, and that the engine will just stop wherever it stops, but based on the fact that 2 blade props almost always stop at 10:00 and 4:00, it seems like there must be a sweet spot.
The options are to have a blade aligned with the TDC mark on the back of the flywheel, or 180 degrees out from that.