
•A large commercial passenger aircraft has more than 100,000 wires, with a total length of 470 km and weight of 5,700 kg. There is about 30% of additional weight in harnessing and connectors. About 30% of electrical wires are potential candidates for a wireless substitute. Wiring lacks dissimilar redundancy and has limited maintenance flexibility and access. Many bulkhead penetrations and connectors are needed between compartments, into tankage and to pass from interior to exterior. Many permanent and temporary sensors are not added because of wiring efforts and associated weight.