The tail screw of the helicopter

Keywords:

aircraft, airport, aviate, aviation, aviator, battle, blades, board, business, care, care-flight, clouds, emergency, emergency-room, engine, excursion, fighting, fire, flight, fly, grass, green, ground, heli-pad, helicopter, international, journey, landing, peace, pilot, power, propeller, sky, takeoff, tarmac, tour, tourism, tourist, transport, transportation, travel, trip, trotting, turbo, vacation, visit, voyage, war, wingtransports,