Aircraft voltage regulator and cutout

REQUIRED: A voltage regulator which weighs less than one-fifth its nearest relative in the industrial field, and a reverse-current cutout weighing less than one-sixth an industrial contactor of equivalent current rating. Such were some general requirements of the generator voltage regulator and cutout whose design and development are described in this paper. This development involved a careful combination of electrical and mechanical engineering principles and necessitated continuous attention being paid to the application requirements. The magnitude of the design problem involved is emphasized by stating that in addition to all those problems normally encountered there are the problems created by the prime requirements of low weight and small size, as well as those created by atmospheric conditions. In this paper the voltage-regulator is taken up first, and this is followed by the reverse-current cutout.