First helicopter capable of hovering flight with pilot: Paul Cornu’s unnamed helicopter, 1907
Height of that first flight: About 1 foot
Duration: 20 seconds
Fate of Cornu’s helicopter design: Abandoned
Early design standoff: Dual contra-rotors vs. one plus tail rotor
Early enabling technology: Swashplate for collective pitch changes
First “practical” helicopter: Sikorsky VS-300
Fastest helicopter ever: Eurocopter X3 experimental, 250 knots
Fastest military helicopter: Boeing CH-47 Chinook, 170 knots
Largest helicopter ever: Soviet Mil V-12
Weight: 213,485 pounds max takeoff weight
Payload: Approximately 60,000 pounds
Rotors: Two main rotors, each 114 feet, 10 inches in diameter
Number built: 2
Most-produced civil helicopter: Probably the Bell 206 Jet Ranger, 8,460 built
Most-produced helicopter ever: Soviet Mil Mi-8, more than 17,000
Crew of Mi-8: Three—pilot, co-pilot and flight engineer
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