Originally Posted by Andrew Troup
By "prop shaft coupler": do you mean a shear-pin arrangement of the type found on outboard motors?
Andrew, not a shear-pin arrangement, but something like the "rubber-hubbed damper plate that will slip/shear" that Mark refers to.
I have even recently helped a boat owner put one back together after a careless passenger let a line foul the prop while he was reversing on a motor
sailor. It was a v-drive, but I was thinking there must be a setup that will perform a similar protect function on sail drives.
The situation described on that site, kind of surprised me as actual able to occur, whether operator carelessness or not.
I'm seen/heard outboard props slip as Captain
Bill describes with his pressed in rubber hubs. Perhaps an option box that this unfortunate owner did not tick.
Definitely something to be aware of.