Development Aims to Support Anti-Submarine Warfare

The U.S. Navy recently executed hand-launched sonobuoys tests on a CH-53E Super Stallion, expanding the branch’s flexibility in support of Anti-Submarine Warfare (ASW) operations. This capability is expected to be later tried on the CH-53K King Stallion, which will be replacing the CH-53E.

Sonobuoys are intended to detect enemy submarines by tracking sounds and bouncing solar pings off the vehicle. They can also locate electric fields and magnetic anomalies, along with measuring air temperature, pressure, and wave height.

“The H-53 is purpose-built to carry heavy loads, but that’s not the limit of our operational relevance,” said Col. Kate Fleeger, Program Manager, Heavy Lift Helicopters Program Office (PMA-261). “This test is just one example of the untapped capabilities of the H-53. Future payloads and the evolution of the H-53 in the battlespace are limited only by our imagination.”

The sonobuoy tests were carried out by PMA-261, Air Test and Evaluation Squadron Two One (HX-21), and the Air Anti-Submarine Warfare Systems Program Office (PMA-264) at Naval Air Station Patuxent River, Maryland. H-53 Lead Test Engineer Adam Chesser was responsible for overseeing the operations.

“We evaluated the procedures and separation characteristics to ensure the sonobuoys would not strike the aircraft when launched,” said Chesser. “Clearing the heavy lift aircraft for sonobuoy deployment creates another level of redundancy for the Navy and provides more resources and flexibility to complete the mission.”

The tests were performed off the coast of Virginia over the Atlantic Ocean. This alternative test range kept the program on schedule and within cost limitations.

PMA-261 is responsible for all aspects of the H-53 heavy lift helicopter lifecycle, including acquisition, maintenance, repairs, and from disposal. PMA-264 develops and maintains the Navy’s airborne ASW systems and sensors to support Maritime Patrol and Reconnaissance Aircraft, the H-60 Helicopter program, and unmanned aerial systems.

FMI: www.navair.navy.mil