rudderpost, rudderstock, rudder blade, tiller

propeller, forestay, mainsail, daggerboard, skeg, mainsheet, headsail, backstay, centerboard, halyard, towline, genoa, centreboard, nosewheel, bilge pump, bowsprit, aileron, propellor, landing gear, luff, foresail, propeller shaft, rotor, tail rotor, headstay, tiller, windlass, hull, tailplane, jib, hydraulic ram, keel, jackscrew, sponsons, horizontal stabilizer, spinnaker, outboard motor, cotter pin, solent, foredeck, cowling, autopilot, sponson, dismasting, furling, capsize, drogue, hydraulics, outriggers, boat, airspeed, winch, clevis, staysail, fuselage, fin keel, airfoils, thruster, midships, vang, towboat, flaps, trysail, chocks, topmast, hydraulic pump, vertical fin, mizzen, canting, capstan, foremast, steering, conning tower, gunwale, groundspeed, amidships, pilothouse, tugboat, derailleur, gooseneck, actuator, piston rod, bimini, crankshaft, bulkhead, glider, brake, sailboat, deckhouse, clew, reverser, moorings, oar, davit, carburettor, mainmast, bearings, pitot tube, valve, winglet, outboard, helmsman, rudders, cleat, transom, fin, grate, pontoon, propellers, axle, bolt, bolts, lever, lintel, paddles, sluice, stretchers, aerial, bar, claw, crossbar, gyroscopic, adjustable, crank, frictional, horizontal, vertical, weakened, lithe, muscular, stout, swinging, centrifugal, condylar, enforcement, exterior, hydraulic, ial, impeller

headfish, mola, ocean sunfish, rudderpost, rudderstock, rudder blade, sunfish, tiller, wheel

vertical tail, vessel, watercraft

aerofoil, airfoil, control surface, steering mechanism, steering system, surface