All-Electrical-Aircraft (AEA)
All-Electrical-Aircraft (AEA) systems are boarding the configurations of the next generation regional airplanes and flight tested in CleanSky by GRA
Questions & answers
Within the Clean Sky JTI, activities currently in progress in the frame of GRA ITD have already reached a level to represent a large step toward the all-electric-regional-airplane configuration, one in which all the on-board systems will be powered by electricity. The key features of such configuration will be demonstrated in-flight by using an existing regional aircraft: the ATR 72-600 MSN98 which is the platform dedicated to development tests by ATR in Toulouse. Systems architectures activities are performed in tight co-operation with major systems suppliers from the SGO ITD and major engine manufacturers from the SAGE ITD, as well as by using advanced virtual/physical integration tools/facilities from the ED-S ITD.
Main highlights of the regional airplane systems configuration are the following:
- extraction of bleed air from the engines has been essentially eliminated, thanks to the use of an electrical-ECS, from Liebherr, and a low power Hybrid Wing Ice Protection System (H-WIPS),from Zodiac
- advanced electrical generation (from Thales) with a pair of generators per engine, one of which having starting capabilities; innovative electrical distribution system with energy management capabilities
- full "fly-by-wire" flight controls where hydraulic power is still used for the actuation of primary surfaces, but intensive activities are performed for the maturation of the electro-mechanical actuation technology so as to achieve a full "power by wire" system
- braking and steering by wire; electrical-APU
For the in-flight demonstration, main equipment will be provided by Liebherr, Thales and Zodiac, as well as by other Partners selected through the Clean Sky Call for Proposals process. Studies and design activities are in progress for solutions capable to assure the best compromise between modification to the demo a/c platform and demo meaningfulness.


Main expected results from such in-flight test/demo campaign are: E-ECS and H-WIPS integration and installation in a regional a/c; E-ECS functionality as "power sink" for the innovative energy management concept; H-WIPS performance verification in ice conditions.


