Calypso's Max-Prop VP, with the adjustment rings visible. The markings on these rings are a bit difficult to puzzle out underwater in the murk, but the adjustment work itself is a snap—much easier and cheaper than hauling the boat.

by Nick Nicholson

When we installed a Max-Prop VP feathering prop on Calypso back in 1996, we did it with two purposes in mind: to reduce drag under sail, and to increase maneuverability in tight quarters, particularly in reverse gear. During a survey prior to turning her over to her new owners, we were reminded of yet a third advantage of this versatile propeller, an advantage that, to us, more than compensates for the price difference between the VP and standard versions of the Max-Prop, and almost any other prop, for that matter: the ability to change propeller pitch without hauling the boat.…