Hi All,

The saga continues with my Pelican 27. I have had a Yamaha 9.9 HP long shaft High thrust o/board put on with electric start and forward controls. The well known company at The Spit that installed it are telling me that I now need a extra long shaft. The motor is on an angle that is, the prop is aiming upwards by about 20deg from the horizontal and the cavitation plate is approx 100mm underwater. When forward in calm water is selected it goes OK although it does bounce out in a chop and sucks air. IN reverse it is useless the upward facing prop creates a vortex and sucks air down.
Does anyone have an outboard on a small yacht that could advise as to how far down should the cavitation plate be and should the prop be on the horizontal or facing downward a few degrees?
I am not as experienced as many of you but commom sense tells me that it should not be pointing up.

ANy help and advise would be much appreciated.

Regards

Manni