Lockheed Martin announced on July 5 that the CH-53K King Stallion test program successfully completed its first extended ‘cross country’ flight from Sikorsky’s West Palm Beach facility in Florida to Naval Air Station Patuxent River in Maryland. This is the first of several such flights that will occur during 2017 and 2018 as the CH-53K flight test program transitions to the flight test facilities at Patuxent River (PAX).
The CH-53K helicopter flew on June 30 from Sikorsky’s Development Flight Center in West Palm Beach to PAX, a distance of approximately 810 miles (1303km). Total flight time was six hours, with two en route fuel stops at Naval Air Station Mayport, Florida, and Marine Corps Air Station New River, North Carolina.
“This first movement of CH-53K flight testing to our customer’s facility denotes that the aircraft have achieved sufficient maturity to begin transitioning the focus of the test program from envelope expansion to system qualification testing,” said Dr Michael Torok, Sikorsky vice president, CH-53K Programs. “This has been the plan from the beginning and is another important step toward getting these fantastic aircraft into the hands of the US Marine Corps.”
The four CH-53K Engineering Development Model (EDM) aircraft have already completed more than 450 hours of flight testing at Sikorsky’s Development Flight Center in West Palm Beach, and continue to drive to the edges of the operational envelope with both internal and external loads.
The flight test program will continue to operate as it has from the beginning under an Integrated Test Team (ITT) that comprises Sikorsky, US Navy Naval Air Systems Command (NAVAIR), and US Marine Corps (USMC) personnel. Testing will continue in both locations, West Palm Beach and Patuxent River, throughout the transition period.
“Bringing the CH-53K flight test program to PAX is an exciting milestone; many of the employees dedicated to its advancement now have the opportunity to work right down the street from it,” said Col. Hank Vanderborght, US Marine Corps program manager for the Naval Air Systems Command’s Heavy Lift Helicopters program, PMA-261.
In April, the CH-53K King Stallion Program successfully passed its Defense Acquisition Board (DAB) and achieved a Milestone C decision that approves funding for low rate initial production.
The CH-53K provides unmatched heavy-lift capability with three times the lift of the CH-53E it replaces. With the increased payload capability and a 12in wider internal cabin compared to the predecessor CH-53E, the CH-53K’s increased payload capability can take the form of a variety of relevant payloads ranging from multiple US Air Force standard 463L pallets to an internally loaded high mobility multipurpose wheeled vehicle (HMMWV) or a European Fennek armored personnel carrier. In addition, the CH-53K can carry up to three independent external loads at once providing incredible mission flexibility and system efficiency.
The CH-53K offers enhanced safety features for the warfighter. Safety is enhanced with full authority fly-by-wire flight controls and mission management that reduces pilot workload and enables the crew to focus on mission execution because the CH-53K all but ‘flies itself’.
Features include advanced stability augmentation, flight control modes that include attitude command-velocity hold, automated approach to a stabilized hover, position hold and precision tasks in degraded visual environments, and tactile cueing, which all permit the pilot to confidently focus on the mission at hand.
The US Department of Defense’s Program of Record remains at 200 CH-53K aircraft. The first six of these are under contract and scheduled to start delivery next year to the Marine Corps. Two additional aircraft, the first low-rate initial production aircraft, are under long lead procurement for parts and materials, with deliveries scheduled to start in 2020.
July 12, 2017