Ключевые слова: aeroplane, air, aircraft, airplane, alert, aviation, background, blade, boom, caution, danger, danger sign, design, detail, engine, fighter, flight, fly, helicopter, intake, jet, keep away, keep away sign, metal, military, plane, propeller, risk, rotate, rotation, rotor, runway, safety, sign, spin, symbol, tail, text, turbine, warning, warning sign, yellow,