Sikorsky XHJS

Sikorsky S-53 / XHJS-1
Role Helicopter
Manufacturer Sikorsky Aircraft
First flight 22 September 1947
Primary user United States Navy
Number built 2
Developed from Sikorsky S-51

The Sikorsky XHJS-1 (manufacturer designation S-53), was developed by Sikorsky Aircraft to meet a Naval requirement for a utility helicopter. The XHJS-1 was not ordered into production and only two prototypes were built.[1]

Design and development

Powered by a 525 hp (391 kW) 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[1] and the first flew on 22 September 1947. The type was evaluated against the Piaseckli XHJP-1. With the Piasceki 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 (BuNo 30368 and 30370).[1]

Specifications (XHJS-1)

General characteristics

See also

Related development
Aircraft of comparable role, configuration and era

References

Notes
  1. 1 2 3 Andrade 1979, p. 194
Bibliography
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