Pratt & Whitney T34

T34 Turbo-Wasp
A B-17 Flying Fortress testbed for the T-34 turboprop engine. This aircraft was later flown on airshow circuits as the "Liberty Belle".
Type	Turboprop
National origin	United States
Manufacturer	Pratt & Whitney
First run	ca. 1950
Major applications	C-133 Cargomaster

The Pratt & Whitney T34 (company designation PT2) was an axial flowturboprop engine designed and built by Pratt & Whitney. Its model name was Turbo-Wasp.

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.

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.

Data from Jane's All The World's Aircraft 1961–62

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