Preparation of material incorporated in this report has been undertaken by the AIEE in the belief that it will materially aid in the realization of a better aircraft electric system. This conviction is confirmed by opinions expressed in joint meetings, including representation from SAE, NASC, NEMA, Army Air Forces, and the Bureau of Aeronautics.

Material comprising this report is directed expressly at the attainment of improved application technique--the attainment of the highest possible quality of performance from a combination of particular devices to perform a given function. The performance qualities exhibited by a composite system composed of numerous devices will be influenced by the character of devices which are selected to work together and the manner in which they are interconnected or correlated. The extent to which such composite systems may be benefited by proper application technique is much greater than would be expected or imagined. Realization of the stated objectives involves comprehensive treatment of the following character expressed quantitatively in simple compact form. 1. An explanation of the fundamental electrical problems involved. 2. Typical characteristic performance data of the various elements and devices of which the system is composed which shall define inherent limitations as well as meritoriu...