%0 Conference Paper %B 40th Annual Conference, Dayton, Ohio, May 4-7 %D 1981 %T 1430. Fuel and Weight Saving Potential of the All-Electric Airplane %A Parks, W %K 24. Weight Engineering - System Design %X The all-electric airplane uses electricity to power all functions normally powered by the hydraulic system and by engine compressor bleed air. Hydraulic actuators are replaced by electro-mechanical actuators, servo valves are replaced by digital logic, a vapor cycle refrigeration unit and cabin air compressor are driven electrically, and de-icing is accomplished with resistance heating. Direct-driven samarium-cobalt generators and solid-state power conditioning units eliminate mechanical constant speed drives and oil coolers. Higher transmission voltages and a distributed bus concept reduce the weight of power wiring. Digital multiplexing of all signal wires further reduces wire weight and provides a self-diagnostic capability. Elimination of the entire hydraulic and bleed-air systems and advanced power generation equipment result in a large weight saving. Elimination of bleed-air extraction provides a significant fuel saving. %B 40th Annual Conference, Dayton, Ohio, May 4-7 %I Society of Allied Weight Engineers, Inc. %C Dayton, Ohio %P 19 %8 5/4/81 %G eng %U https://www.sawe.org/papers/1430/buy %9 24. WEIGHT ENGINEERING - SYSTEM DESIGN %M 1430 %1 Non-Member Price: $20.00; Member Price: $10.00 Members: First 10 product downloads are Free. %2 10.00 %3 20 %4 SAWE1430