Comments on aircraft switch testing

It has been stated that the only real obstacle to push-button warfare is the design of an adequate switch. Unfortunately, aircraft switch design and application have lagged behind the need of the industry. One of the most effective ways to shorten this lag is to learn more about switches and switching problems. In this regard a scientific switch-testing procedure is proposed in this article. Consideration is given to factors that determine switch merit. These factors include insulation, contact operation, peak voltage transients, and switch mechanisms. Simulation of inductive loads is discussed as a means of obtaining more realistic test results.