Ключевые слова: aircraft, airplane, aviation, blade, blades, bolt, bolts, chopper, choppers, complex, complexity, component, components, design, detail, engine, engineering, engines, flight, flying, helicopter, helicopter rotor blades, helicopters, mechanical, metal, nut, nuts, part, parts, power, powerful, rotor, rotor blade, rotor blades, rotors, safety, stabiliser, stability, stabilize, stabilizer, tail, technology, transport, transportation, travel,