Pratt & Whitney T34

The Pratt & Whitney T34 (company designation PT2 Turbo-Wasp) is an American axial flowFlight Global: 1952 Archive turboprop engine designed and built by Pratt & Whitney. Its only major application was on the Douglas C-133 Cargomaster.

Design and development

In 1945, the United States Navy funded the development of a turboprop engine. The T34 was produced from 1951 to 1960, but never used in U.S. Navy aircraft production.

The YT34 engine with three wide-bladed propellers was made for two Navy Lockheed R7V-2 Constellation (C-121s) variants, for testing. Flight tests were on 1 September 1954.Google Books: Lockheed secret projects: Inside the Skunk Works By Dennis R. Jenkins; p.28-29

In September 1950, a testbed Boeing B-17 Flying Fortress flew with a T34 turboprop mounted in the nose of the bomber. The first application for the T34 was the Boeing YC-97J Stratofreighter, which later became the Aero Spacelines Super Guppy. The next application for the engine was the Douglas C-133 Cargomaster.Pratt&Whitney: T34 Turboprop

Variants

T34-P-1 equivalent. T34-P-2 Similar to -1. T34-P-3 equivalent. YT34-P-5 equivalentalternatewars.com - YC-97 Characteristics Summary; Retrieved 10/12/11 T34-P-6 equivalentalternatewars.com - YC-121F Charactaristics Summary; Retrieved 11/6/11 T34-P-7 T34-P-7W equivalent, w/water injection T34-P-9W equivalent, w/water injection T34-P-12 YT34-P-12A equivalentBreffort, Dominique. Lockheed Constellation: from Excalibur to Starliner Civilian and Military Variants. Paris: Histoire and Collecions, 2006. p. 134 PT2F-1 equivalent, unbuilt civilian version planned to power the Lockheed L-1249B.Breffort, Dominique. Lockheed Constellation: from Excalibur to Starliner Civilian and Military Variants. Histoire and Collecions, 2006. p. 113 PT2G-3 equivalent, unbuilt civilian version planned to power the Lockheed L-1449 and possibly the L-1549.

Applications

Aero Spacelines Super Guppy Boeing YC-97J Stratofreighter (YT34-P-5) Douglas YC-124B Globemaster II Douglas C-133 Cargomaster Lockheed R7V-2 Constellation (YT34-P-12A)Breffort, Dominique. Lockheed Constellation: from Excalibur to Starliner Civilian and Military Variants. Paris: Histoire and Collecions, 2006. Print. Lockheed YC-121F Constellation (T34-P-6)

Engines on display T34-P-3: National Air and Space MuseumEngine History: NASM Storage (NASM) in Washington, D.C. T34-P-6: Travis Air Force Base Heritage Center in Fairfield, California T34-P-7W: NASM T34-P-7WA: Pacific Coast Air Museum (PCAM) in Santa Rosa, California

Specifications (T34-P-3)

Pratt & Whitney T34

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