vtol, sailplane, coaster brake, starfighter, hexapod, lunar excursion module, gatling gun, broadhead, bander, dukw, monoplanes, tank destroyer, highline, ornithopter, drogue chute, aeronaut, hypervelocity, gyroplane, ramjet, wankel rotary engine, autoloading, reconnaissance vehicle, wheeled vehicle, boundary layer, reciprocating saw, airfoils, trebuchet, verticle, turbojet, chamfering, ejection seat, thermobaric bomb, sidecut, uav, crazyhorse, whirlybirds, recon, rocketeer, gliders, turbojet engine, milling machine, streamliner, trencher, tige, spyder, hovercraft, piton, autogiro, foiler, moldboard plow, notcher, turret, ascender, cannoneer, airbrake, triplane, tubeless, helo, slickrock, capstan, gradiometer, electromagnets, simulator, pusher, autorotation, air cushion, sounding rocket, wankel engine, turbofan engine, gatling, sidewinder, inertial guidance, atomic clock, bombsight, desert rat, tugger, dozer, remus, fenrir, prototype, seeder, glacial boulder, crosshead, glaive, flume, hypersonic, jdam, ballistic trajectory, jet propulsion, rotors, ramjet engine, nvis, prodder, retroreflector, burster, rotary actuator, bathysphere, rangefinder, monopod, whaleback, immelmann, excaliber, firebox, rail, annular, anvil, architrave, asymptote, atoll, bench, bobbin, buckler, bur, chamber, chisel, conveyor, depressions, fillet, fillets, grate, grates, grating

carpenter's saw, handsaw

splitsaw