The idea of folding props on a production cruising boat
to increase speed or fuel
economy is a total waste of money
. Now as equipment
on a race boat
I can see the need to squeeze out the extra knot
or two any way possible..
Folding props very expensive, finicky, and have a tendency to lock up at exactly the wrong time. Most production cruising boats are relatively slow and so the extra knot
or two will make little difference on a passage
, and there is no science that I have seen that definitively proves any cost saving. Just another complicated piece of equipment
to go wrong with no real benefit. But it sure is nice to tell everyone at the dock
about your fancy xyzzy folding props and all the perceived benefits. I remember fondly trying to dock
a friends FP 60' when one of his expensive folding props locked up in the wrong direction and all we could do is go around in circles and loose control of the boat. The owner had to send the props back to the manufacturer at great expense and they fixed the problem at further great expense shipped them back half way around the world and when we put them back on the boat they locked up again and we got to do more circles around the dock.