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The chief characteristics of various PTO equipped transfer cases and methods of adapting the PTO output to vehicle auxiliary mechanisms are described. Direct full torque PTO and indirect limited torque PTO are compared in relation to shaft connection and types of bearings, and lubrication. The transfer case PTO can have many efficient applications as a means of supplying extra engine power outlets in vehicles that require transfer cases.

PERFORMANCE characteristics of the German BMW-003 and Jumo 004 engines as a whole, as well as of their principal parts, are presented here. This paper, the authors point out, is not the result of experimental determinations in this country, but is rather a résumé of data obtained from German sources. The discussion is divided as follows: 1. Performance of complete machine. 2. Compressor performance. 3. Combustion-chamber performance. 4. Turbine performance. 5. Miscellaneous operating characteristics.