A CH-53K King Stallion heavy lift helicopter from Marine Operational Test and Evaluation Squadron (VMX) performed an external load certification lift of an inoperable F-35 Lightning II airframe in December at Naval Air Station (NAS) Patuxent River, Maryland. According to NAVAIR News Release, the lift was to evaluate the load and inform future lift capabilities.
The CH-53K is the most powerful helicopter ever developed by the US government. This new-build helicopter will continue to fill the CH-53E Super Stallion mission as a pillar of logistics and assault support for the US Marine Corps (USMC) efforts, but with significant improvements such as state-of-the-art, fly-by-wire technology reducing pilot work load, contributing to aircraft stability, and improving overall safety. The recent full rate production decision for the CH-53K is validation of the aircraft’s value to the USMC and last month’s test lift is one more demonstration of its performance and reliability.
The NAS Patuxent River F-35 Integrated Test Force (ITF) test team, Naval Air Warfare Center Aircraft Division (NAWCAD) Cargo Lab, and others ensured a successful lift and flight by conducting load certification testing, sling configuration analysis, and cargo characteristics documentation were completed as required. Data from the tests will inform the flight envelope for future events. An earlier crane test lift verified the sling, rig, pitch and bank attitudes of the jet, and control surface states.
The aircraft lifted is a developmental test carrier variant F-35C fighter jet that had accrued 750 flight hours during 450 test flights between 2010 and 2016. The F-35C and rigging weighed about 22,000 pounds after removal of its mission and propulsion systems, outer wings, and additional equipment.
The CH-53K is currently cleared to conduct a 27,000-pound external lift and is projected to be cleared for a 36,000-pound external lift, nearly three-times more under high, hot conditions than its predecessor, the CH-53E.
The CH-53K King Stallion advances Sikorsky’s 50 years of manufacturing and operational success with its CH-53A, CH-53D/G, and CH-53E predecessors.
The CH-53K helicopter has been designed and built to the exacting standards of the USMC and will serve as its critical land and sea-based logistics connector. The new heavy lifter will allow the USMC and international militaries to move troops and equipment from ship to shore, and to higher altitude terrain, more quickly and effectively than ever before.
The King Stallion is also designed to have a smaller shipboard footprint, lower operating costs per aircraft, and less direct maintenance man hours per flight hour. The CH-53K is currently on track for first fleet deployment in FY2024, in alignment with Marine Corps schedules and requirements. The USMC’s procurement objective is 200 helicopters.
In September 2021, the CH-53K performed its first operational mission by lifting US Navy MH-60S Knighthawk helicopter from a 12,000-foot mountain top in California. That aircraft weighed approximately 15,000 pounds and was successfully transported 23 miles to Fallon, NV.
“This type of mission is precisely what the K was designed and built to do,” said Col. Kate Fleeger, program manager for the Heavy Lift Helicopter Program Office (PMA-261). “It continues to prove its value in support of Marine Corps operations, transporting equipment that no other rotary wing platform can lift.”
The CH-53K entered its full rate production and deployment phase in December and is on schedule to declare Full Operational Capability in FY2029.
Photo credit: Kyra Helwick / U.S. Navy
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