Pratt & Whitney J57

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J57 / JT3C
YJ57-P-3 cut-away demonstrator at USAF Museum
TypeTurbojet
National originUnited States
ManufacturerPratt & Whitney
First run1952
Major applicationsB-52 Stratofortress
KC-135 Stratotanker
B-57 Canberra
Boeing 707
Douglas DC-8
F-8 Crusader
F-100 Super Sabre
Number built21,170 built
Developed fromPratt & Whitney XT45
VariantsPratt & Whitney JT3D/TF33
Developed intoPratt & Whitney J52/JT8A
Pratt & Whitney J75/JT4A
 
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J57 / JT3C
YJ57-P-3 cut-away demonstrator at USAF Museum
TypeTurbojet
National originUnited States
ManufacturerPratt & Whitney
First run1952
Major applicationsB-52 Stratofortress
KC-135 Stratotanker
B-57 Canberra
Boeing 707
Douglas DC-8
F-8 Crusader
F-100 Super Sabre
Number built21,170 built
Developed fromPratt & Whitney XT45
VariantsPratt & Whitney JT3D/TF33
Developed intoPratt & Whitney J52/JT8A
Pratt & Whitney J75/JT4A

The Pratt & Whitney J57 (company designation: JT3C) was an axial-flow turbojet engine developed by Pratt & Whitney in the early 1950s. The J57 was the first 10,000 lbf (45 kN) thrust class engine in the United States. The J57/JT3C was developed into J75/JT4A turbojet, and the JT3D/TF33 turbofan.[1]

Contents

Design and development

The J57 was a development of the XT45 (PT4) turboprop engine intended for the XB-52. As the B-52 power requirements grew, the design evolved into a turbojet, the JT3. The prestigious Collier Trophy for 1952 was awarded to Leonard S. Hobbs, Chief Engineer of United Aircraft Corporation, for "designing and producing the P&W J57 turbojet engine".[2] On May 25, 1953, a J57-powered YF-100A exceeded Mach 1 on its maiden flight. The engine was produced from 1951 to 1965 with a total of 21,170 built.

One XT57 was installed in the nose of a C-124 (BuNo 52-1069), and tested in 1956.[3][4]

Variants

Pratt & Whitney JT3 (1/4th scale)
J57 (Military)
JT3C (Civilian)
Derivatives

Applications

J57s on a B-52D
J57 (Military)
JT3C (Civilian)
T57 turboprop

Specifications (J57-P-23)

Pratt & Whitney J57 turbojet

Data from[citation needed]

General characteristics

Components

Performance

See also

Related development
Comparable engines
Related lists

References

Notes
  1. ^ Gunston, p.167
  2. ^ List of Collier Trophy Winners
  3. ^ Francillon, René J. McDonnell Douglas aircraft since 1920 (Putnam, 1979), p.470.
  4. ^ Connors, p.294
Bibliography

External links