ឧទ្ធម្ភាចក្រធុន Sikorsky CH-53K King Stallion

The Sikorsky CH-53K King Stallion is a heavy-lift cargo helicopter currently being developed by Sikorsky Aircraft for the United States Marine Corps (USMC). The design features three 7,500 shp (5,590 kW) engines, new composite rotor blades, and a wider aircraft cabin than previous CH-53 variants. It will be the largest and heaviest helicopter in the U.S. military. The USMC plans to receive 200 helicopters at a total cost of $25 billion. Ground Test Vehicle (GTV) testing started in April 2014; flight testing began with the maiden flight on 27 October 2015. In May 2018 the first CH-53K was delivered to the Marine Corps.

Role មុខងារ	Heavy-lift cargo helicopter ស្ទូច ដឹកជញ្ជូនធុនធ្ងន់
National origin ប្រទេសផលិត	United States
Manufacturer រោងចក្រ	Sikorsky Aircraft
First flight ហោះហើរដំបូង	27-Oct-15
Status ស្ថានភាព	In production
Primary user ប្រទេសប្រើច្រាស់ច្រើន	United States Marine Corps
Program cost តម្លៃគម្រោងផលិត	US$25.335 billion (FY2015)[1]
Unit cost តម្លៃ/គ្រឿង	US$87.1 million (Est. flyaway cost)[2][1]
	US$122M (LRIP 1 excl. R&D)[2][1]
	US$131M (LRIP 1 incl. R&D costs)[3]
Developed from អភិ.ក្រុមហ៊ុន	Sikorsky CH-53E Super Stallion
General characteristics
Crew: 5: 2 pilots, 1 crew chief/right gunner, 1 left gunner, 1 tail gunner (combat crew)
Capacity: 37 troops (55 with centerline seats installed)
Payload: * 35,000 lb (15,900 kg)
Length: 99 ft 1/2 in (30.2 m)
Rotor diameter: 79 ft (24 m)
Height: 27 ft 9 in (8.46 m)
Disc area: 4,900 ft² (460 m²)
Empty weight: 33,226 lb (15,071 kg)
Loaded weight: 74,000 lb (33,600 kg)
Max. takeoff weight: * 84,700 lb (38,400 kg)
Rotor systems: 7 blades on main rotor (each 35 ft × 35 in), 4 blades on tail rotor
Powerplant: 3 × *General Electric GE38-1B turboshaft, * 7,500 shp (5,600 kW) each
Performance
Cruise speed: * 170 knots (196 mph, 315 km/h)
Range: * 460 nmi (852 km) no reserves
Combat radius: * 110 nmi (126 mi, 204 km)
Service ceiling: * 14,400 ft (4,380 m)
Rate of climb: 2,500 ft/min (13 m/s)
Armament
Guns:
2 window-mounted .50 BMG (12.7 mm) M3M/GAU-21 machine guns
1 ramp-mounted .50 BMG (12.7 mm) M3M/GAU-21 machine gun
Other: Chaff and flare dispensers

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