Testing Electrical Installations in Aircraft Available to Purchase

MOST aircraft manufacturers would like to be able to check completely the functioning of all electrical installations while the aircraft is still in the rigging shop and without having to start the engines. Some tests, such as those for continuity of circuits and for “earths,” have for long been made at an early stage in the assembly; and much thought has, without doubt, gone on ways and means of increasing the amount of testing which can be done without running the engines.