Here I am working on my corvair engine shortly before
the first run.
I decided after the second run that my prop was too
much for the engine. I decided to reduce both the
pitch and diameter.
I was only able to obtain 2300 RPM. This wasn't
a big surprise. When I made the prop I took some sound
advice and erred on the large size.
After all once you carve the material away you can't
put it back!
Since then I've reduced from 60" diameter to 58",
and I've taken the pitch from 60 to 54"
The combination of those changes should get me
my static goal RPM of 2700