Compass variable that accounts for the difference in degrees between true north and magnetic north.
Air introduced into a spinning propeller from the water's surface.
Very high frequency; a bandwidth designation commonly used by marine radios.
A bed or berth located in the bow that has a V-shape.
Propulsion system where the drive shaft initially runs forward into a gear box and then runs aft and down through the hull. The driveline forms a V-shape with the gear box at the pivot point.