The Boeing Vertol CH-46 Sea Knight is an American medium-lift tandem-rotor transport helicopter powered by twin turboshaft engines. It was designed by Vertol and manufactured by Boeing Vertol following Vertol's acquisition by Boeing.
Le CH-46 est un hélicoptère à deux rotors en tandem. Il est propulsé par deux turbines GE T58 montées sous le rotor arrière. Un axe de transmission permet d'entrainer aussi le rotor avant. Ces rotors tournent en sens inverse pour annuler l'effet de couple. Les turbines sont couplées afin que le CH-46 puisse continuer à voler sur un seul moteur. Chaque rotor porte trois pales repliables.
Crew: 5: two pilots
Capacity: 7,000 lb (3,200 kg)
Length: 44 ft 10 in (13.67 m) (fuselage) / 83 ft 4 in (25.40 m) (rotors turning)
Height: 16 ft 9 in (5.11 m) to top of rear rotor head
Empty weight: 15,537 lb (7,047 kg) / Gross weight: 24,300 lb (11,022 kg)
Max takeoff weight: 24,300 lb (11,022 kg) [105]
Fuel capacity: 350 US gal (290 imp gal; 1,300 L) internal
Powerplant: 2 × General Electric T58-GE-16 turboshaft engines, 1,870 shp (1,390 kW) each
Main rotor diameter: 2 × 50 ft (15 m)
Maximum speed: 144 kn (166 mph, 267 km/h)
Range: 550 nmi (630 mi, 1,020 km) with 2,400 lb (1,100 kg) payload
Ferry range: 600 nmi (690 mi, 1,100 km)
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