Basic considerations in selection of electric systems for large aircraft

Jerome J. Taylor (The Detroit Edison Company, Detroit, Mich.): The authors give a table showing the influence of system voltage on the weight of the power-distributionsystem copper in large aircraft. They also state that the present 27-volt d-c electric system has done an excellent job to date, but becomes inadequate from the standpoint of weight for application to planes now being designed. These planes are larger, and presumably require greater amounts of electric power, than the B17 and the B24.