The power-recovery system of testing aircraft engines

FOR its part in the development of the power-recovery system of testing aircraft engines the electrical industry may properly take pride. It has aided the war effort by helping to give to the aircraft-engine industry a testing technique that contains advantages not previously available. In this system of testing worth-while energy can be saved — more than half that required to operate an aircraft-engine manufacturing plant — and power demand can be reduced to the extent that power-demand costs and the capacities of power-supplying apparatus are materially reduced, engines can be tested with the ease and the quietness typical of electric machinery, testing can be carried on in buildings of simplified design, accurate electric load readings can be obtained to check and substantiate readings taken by conventional engine-testing methods, and, as reported by an aircraft engine builder, testing may be accomplished more quickly than with other systems. All of this can be done too on a basis that is economically sound.