In article , Larry Smith
wrote:

Looking for data on how much better, if any, one of the subject aircraft
performs with a Warp Drive or similiar prop.
We can't install anything but certified wood props (or expensive aluminum
ones) on our old birds. Thus, what we need is hard data so maybe we can
approach FAA to let us convert to carbon fiber props.

I fly a 65 hp 1945 Champ with an aluminum prop. I have seen Warp Drive
props on friends Ezes. The coning scares me! Setting them to the proper
angle is tricky.