Experimental investigation of air-cooled turbine blades in turbojet engine XI : internal-strut-supported rotor blade

Reeves P. Cochran, Francis S. Stepka, Morton H. Krasner
naca-rm-e52c21
Jun 1952


An air-cooled internal-strut-supported blade was investigated in a modified production turbojet engine to determine the cooling effectiveness of this type of blade design and the cooling-air pressure loss through the blade under engine operating conditions. This blade consisted of a finned internal load-carrying member or strut integral with the blade mounting base and an attached shell that forms the airfoil shape and insulates the strut from the direct effects of the hot gas stream.

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