This view shows the twist
in the propeller blade.
This is often called a constant
pitch propeller, but only because
it doesn't change while you're
running it.
The pitch is NOT constant down the
blade of the propeller.
A constant pitch would actually
require a lot more twist than
you see.
The pitch is actually reduced as
you get near the hub.
This is because the air near the
fuselage is slowed down by the drag
caused by the cowling.
To equalize the bight it takes
it has to have a lot less pitch
near the hub.
This prop was carved with the Corvair
engine in mind. Rotation is clockwise
opposite of most aircraft engines.
The pitch is about 60" and the diameter
is 60". When carving propellers it's
possible to reduce the pitch, or
diameter later.
I'm aiming to turn it about 2800 RPM
static.