[hpv-boats] Rigid Shaft

[dennis]

Ian
if you are using a rigid prop,it is possible to modify the prop mounting so that you achieve no vibration and get the full power out of the prop. This requires a small slot in the prop hub so that it can pivot around a pin and be vertical when in the vertical plain.  This is a sort of restricted universal joint that was developed by David Witt at Oxford university.

I have wondered if this system could be further refined so that it would operate on a folding prop with suitable positioned stops.

Dennis