Pratt & Whitney T34


The Pratt & Whitney T34 is an American axial flow 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 variants, for testing. Flight tests were on 1 September 1954.
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.

Variants

;T34-P-1: equivalent.
;T34-P-2: Similar to -1.
;T34-P-3: equivalent.
;YT34-P-5: equivalent
;T34-P-6: equivalent
;T34-P-7:
;T34-P-7W: equivalent, w/water injection
;T34-P-9W: equivalent, w/water injection
;T34-P-12:
;YT34-P-12A: equivalent
;PT2F-1: equivalent, unbuilt civilian version planned to power the Lockheed L-1249B.
;PT2G-3: equivalent, unbuilt civilian version planned to power the Lockheed L-1449 and possibly the L-1549.

Applications

Engines on display