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Conventional Vs. Electric ECS (Cont.) Typical mission profile consists of range and diversion (cruise between 31 Kft to 41 Kft) Power Required for the Operation of the ECS for Twin‐Engine Wide‐Body Aircraft (A330, B767) Unclassified 36
Actuation System The four‐engine A380 adopted the “2H + 2E” concept using EHAs and EBHAs. The twin‐ engine B787 adopted the three channel hydraulic system approach which is more conservative. Both aircraft utilize 5000 PSI hydraulic systems. A380 Electro‐Hydrostatic Actuator (EHA) Unclassified 37
Page 1 and 2: The 9th Israeli Symposium on Jet En
Page 3 and 4: Evolution of the All/More Electric
Page 5 and 6: “Conventional” Philosophy (Cont
Page 7 and 8: “Conventional” Philosophy (Cont
Page 9 and 10: Effects of Takeoff on Aircraft Oper
Page 11 and 12: Effects of Bleed Air and Shaft Powe
Page 13 and 14: “Electric Aircraft” Philosophy
Page 17 and 18: “Electric Aircraft” Unclassifie
Page 19 and 20: “Electric Aircraft” Improved re
Page 23 and 24: Secondary Power Systems (SPS) Distr
Page 25 and 26: Conventional Secondary Power System
Page 27 and 28: Typical Power Level of Electrical L
Page 29 and 30: AC Power Generation & Regenerative
Page 31 and 32: B787 “Bleedless” System Archite
Page 33 and 34: B787 Hybrid Electrical Power Distri
Page 35: Conventional Vs. Electric ECS Conve
Page 39 and 40: Impact of Aircraft and Engine Desig
Page 41 and 42: Impact of Aircraft and Engine Desig
Page 43 and 44: Impact of the AEA Concept Implicati
Page 45 and 46: More Electric Engine (MEE) Challeng
Page 47 and 48: IAI More “Electric Aircraft” B7

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