View Single Post
Old Oct 30, 2010, 02:32 AM
JetPlaneFlyer is offline
Find More Posts by JetPlaneFlyer
Grumpy old git.. Who me?
JetPlaneFlyer's Avatar
Aberdeen
Joined Mar 2006
13,436 Posts
I take Rebel's point about props not being trully helical in pitch but providing you are 'trimming' it and not butchering it down to half it's original diameter I'd still say that 'as near as makes no difference' cutting down a prop wont effect it's pitch.

Take an 8" x 6" prop and cut it doen to 6" diameter and you have, near enough for our purposes, a 6" x 6" prop. The trimmed blades will have reduced aspect ratio so will be a little less efficient.

Steve
JetPlaneFlyer is offline Find More Posts by JetPlaneFlyer
Reply With Quote