Spirit AeroSystems has successfully delivered to Sikorsky the third fuselage section for the CH-53K King Stallion heavy lift helicopter program’s System Demonstration and Test Article (SDTA) contract. Consisting of an integrated cockpit and cabin structure with a separately attached tail section, the composite-skinned fuselage will enable prime contractor Sikorsky to begin assembling the third of four SDTA aircraft to further solidify the final production configuration of the CH-53K aircraft for the U.S. Marine Corps.
«Spirit AeroSystems is pleased to be a major supplier to a new generation, heavy-lift helicopter capability for the Marine Corps», said Phil Anderson, Spirit senior vice president of Defense Programs. «The strong, lightweight composite structures we are providing to Sikorsky will in turn give the Marine Corps a much needed increase in payload capability».
Sikorsky came under contract to the U.S. Navy in 2013 to assemble and deliver the four SDTA aircraft by 2017 in support of the Marine Corps operational evaluation of the CH-53K platform. Spirit is on contract to deliver to Sikorsky the final SDTA fuselage unit later this year.
The U.S. Marine Corps will employ the four SDTA aircraft to verify the helicopter’s design capability to carry 27,000 pounds/12,247 kg over 110 nautical miles/126.6 miles/203.7 km under «high hot» ambient conditions, tripling the external load carrying capacity of the current CH-53E Super Stallion helicopter.
General Characteristics
| Number of Engines | 3 |
| Engine Type | T408-GE-400 |
| T408 Engine | 7,500 shp/5,595 kw |
| Maximum Gross Weight (Internal Load) | 74,000 lbs/33,566 kg |
| Maximum Gross Weight (External Load) | 88,000 lbs/39,916 kg |
| Cruise Speed | 141 knots/162 mph/261 km/h |
| Range | 460 NM/852 km |
| AEO* Service Ceiling | 14,380 feet/4,383 m |
| HIGE** Ceiling (MAGW) | 13,630 feet/4,155 m |
| HOGE*** Ceiling (MAGW) | 10,080 feet/3,073 m |
| Cabin Length | 30 feet/9.1 m |
| Cabin Width | 9 feet/2.7 m |
| Cabin Height | 6.5 feet/2.0 m |
| Cabin Area | 264.47 feet2/24.57 m2 |
| Cabin Volume | 1,735.36 feet3/49.14 m3 |
* All Engines Operating
** Hover Ceiling In Ground Effect
*** Hover Ceiling Out of Ground Effect
