This Jupiter 41 SB is running fine not only because of its captain and trim control, but because of expert selection of propeller characteristics and rotation. Courtesy Jupiter Marine International ...

Years after the space race, propeller design remained a sea-trial-and-error endeavor: haul, tweak the props, relaunch, sea-trial, repeat. Finally, the U.S. Navy paid ...

This entire illustration shows just one boat. There are three different views representing the effect of prop torque (aka “walk” or “kick”) in both forward gear and reverse gear. It’s a single-engine ...