The Sikorsky XHJS-1 (manufacturer designation S-53), was developed by

Sikorsky Aircraft Sikorsky Aircraft is an American aircraft manufacturer based in Stratford, Connecticut. It was established by aviation pioneer Igor Sikorsky in 1923 and was among the first companies to manufacture helicopters for civilian and military use. Pre ...

to meet a Naval requirement for a utility helicopter. The XHJS-1 was not ordered into production and only two prototypes were built.

Design and development

Powered by a Continental R-975-34, the S-53 was a development of the S-51 designed for use on aircraft carriers. The tail rotor was raised above head-height to give more clearance and the landing gear was made stronger to enable operations from a moving deck. Other enhancements were a folding main rotor and the option for amphibious landing gear. Two prototypes were ordered by the United States Navy as the XHJS-1 and the first flew on 22 September 1947. The type was evaluated against the Piasecki XHJP-1. With the Piasecki design being ordered as the HUP-1 by the Navy, the S-53 was not developed further.

Variants

;XHJS-1 :Prototype naval utility helicopter, two built.

Specifications (XHJS-1)

References

;Notes ;Bibliography * United States military helicopters 1940s United States military utility aircraft HJS 1940s United States helicopters Single-engined piston helicopters Aircraft first flown in 1947 {{aviation-stub

Design and development

Variants

Specifications (XHJS-1)

See also

References