330-PS-624 (USN 707934):  Navy’s New Turboprop Engine.  Depicted here is the T-34 Turbo-Wasp Engine, installed as the fifth engine in the nose of a B-17 flying fortress, developing between 5,000 and 6,000 horsepower, the T-34 is a single unit high-pressure axial flow gas turbine engine that delivers power both to the propeller and by jet thrust through a tailpipe at the rear.  About 90 percent of the engine’s power is delivered to the propeller shaft with the remainder in the jet thrust.  Stainless steel is used almost exclusively in the construction of the T-34, permitting increased ruggedness for the engine.  Basic engine weight is 2,550 pounds for a ratio of more than two horsepower per pound of engine weight.   Basic engine weight is 2,550 pounds for a ratio of more than two horsepower per pound of engine weight.  The T-34 is 155 inches long and has a basic diameter of 30 inches.   Released August 1950.  (7/14/2015).
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<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/127906254@N06/19529175409/">330-PS-624 (USN 707934)</a>