Sikorsky CH-53A Sea Stallion

The Sikorsky CH‑53A Sea Stallion, developed by Sikorsky Aircraft Corporation in the early 1960s, was the United States Navy’s first heavy‑lift helicopter capable of transporting troops, equipment, and supplies directly from ship decks to shore. Derived from the earlier S‑61R design, the CH‑53A first flew on 14 September 1964 and entered service in 1966, seeing extensive action during the Vietnam War where its ability to move up to 12,000 pounds of cargo proved decisive. Powered by two General Electric T64‑GE-6 turboshaft engines generating 2,950 shaft horsepower each, the aircraft featured a six‑blade main rotor, a robust fuselage with a tricycle landing gear, and a retractable tail wheel for shipboard storage. Its 88‑foot rotor diameter and spacious cargo bay allowed carriage of vehicles, artillery, and up to 55 troops. The Sea Stallion’s reliability and lift capacity set new standards for maritime assault helicopters and influenced later designs such as the CH‑53E Super Stallion. Beyond combat, the CH‑53A supported humanitarian relief, disaster response, and special‑operations missions, cementing its legacy as a versatile workhorse that expanded the operational reach of naval aviation worldwide.

Sikorsky Aircraft Corporation

Sikorsky CH-53A Sea Stallion

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