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News

Composite components for Sikorsky helicopters

Exelis : 03 March, 2014  (Application Story)
Exelis will by structural airframe components from composite materials for use on the Sikorsky heavy lift CH-53K helicopters
Composite components for Sikorsky helicopters

Exelis has been awarded a contract valued in excess of $34 million from Sikorsky to produce major structural airframe components for four production-representative CH-53K heavy lift helicopters. Designated as System Demonstration Test Articles (SDTA), the four aircraft will enable the US Marine Corps to conduct operational evaluation of the new helicopter system beginning in 2017.

Exelis will fabricate and assemble the composite sponsons, the tail rotor pylon and the horizontal stabilizer of the CH-53K heavy lift helicopter. The use of composite materials helps to increase the performance and capability of the aircraft by reducing weight and fuel consumption, which allows for increased payload capacity and extended flight range.

“Our breadth of composite fabrication expertise combined with skilled assembly capability provides our customer with the most affordable solutions,” said Mike Blair, vice president and general manager of the Exelis Aerostructures business. “The use of composite technology on the CH-53K helicopter ensures that the weight, durability and affordability objectives of the program are met.”

Once the SDTA aircraft enter operational evaluation, the Marine Corps will verify the CH-53K helicopter’s capability to carry 27,000 pounds over a mission radius of 110 nautical miles under “high hot” ambient conditions, thereby more than tripling the external load carrying capacity of the current CH-53E Super Stallion helicopter.

Production will take place at the Exelis composite design and manufacturing centre in Salt Lake City, Utah.

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