Emergency Airplane RATs. Michael J. Zolidis Chief Engineer Electric Systems February 21, 2006

Transcription

1 Emergency Airplane RATs Michael J. Zolidis Chief Engineer Electric Systems February 21, 2006 Page 1

2 Over 50 Years of Electric Systems Aerospace Experience B-36 Commercial Military Business Ram Air Turbine MD-90 TU-204R C-5 RERP C-131 F-8U/2N A-10 DC-8 SERIES 70 GULFSTREAM IV A /600 LCA B-47 C-5A F-8U/3 C-133 CH-54 TORNADO CH53 E-8A AIRBORNE LASER CH-47D SAAB 2000 A400M VC-10 VFW-614 CL-600 F-3C JAS-39 A-3J SABRELINER XFV-12A EFA KC-135A TR-1 F-4 KC-135E SR-71 F2 CL-604 E-2C B-66 F-35 CH46 JA-37 FALCON 20 G-222/C-27 B-1B BAE-146 HAWKER 800 /1000 NIMROD 2000 DC-8 SERIES 60 X-31A AVRO RJ /700 /800 F-101 CL-44 S-3A E-3A F-20 JSF/CDA EH 101 F-22 ARJ21 CH-3C EA-6B B-57 DHC-7 SH / UH EFA 2000 ERJ-135 B-52H E-6A LEARJET 60 F /200 LEARJET 55 FALCON 200 B-2 DHC JETSTAR A319 AJ-37 V-22 C-17A L-159 A380 F-14A KC-135R B-52F/G E-4B RAH JET SR-71 A A340 DHC D609 G550-AEP MMA DC-8 C-135B L-1011 ERJ-145 CF-5 GV-SP HAWK MD-80 C-1 /ECM /STOL A330 J-35 CARAVELLE 10B 100 / T-45A SAAB 2000 CRJ-700 DC-9 F-27 F-15E FOKKER 70 SUKHOI RRJ B-57D /400 /500 C-141 F/A-18 E/F CARGOLIFTER B-58 F-28 US-1 HAWK 200 CL 160 CH47A-C F-16 C /D /N F-16 A/B VC-25A IL-96M/T MD-10 F-100 S2F P-2J A300B F-14B/D A-7A G-450 MERCURE AV-8B FOKKER 50 CRJ-100 / F-102 CONCORDE F-15 CL ADV 767 AWACS 737AEW&C CL-28 DHC-5D MD-11 A F-111 VH-3D C-5B GLOBAL EXPRESS EF-111A A310 X-45 UCAV 720B AMX LEARJET /200 A-4 H/M 757 A320 IDF HAWKER HORIZON E-10A 707 P-2E/H KFIR 767 FOKKER 100 DHC A-6E/KA-6D EMBRAER 727 DC-10 DHC /190 C-130J Falcon F7X F-18 C/ D ER Page 2

3 Video Page 3

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5 What is a Ram Air Turbine? A small windmill that extracts power from the airflow Most common use is to provide emergency power in the event of an all-engines out failure Page 5

6 Emergency Ram Air Turbine Purpose: provide emergency power to essential systems when all engines fail Hydraulic power for powered actuation of flight control surfaces Electric Power for flight control computers, essential instruments, radio, cockpit lighting, windshield and pitot tube de-icing The airplane becomes a glider when all engines fail Page 6

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8 What could cause an all-engines out condition? Fuel exhaustion Fuel contamination Volcanic ash damage Extremely heavy rain or hail Human error Page 8

9 Ram Air Turbines Save Lives! Boeing Fuel Exhaustion - August Lives Saved Page 9

10 Ram Air Turbines Save Lives! CL600 - Fuel Contamination- March Lives Saved Page 10

11 Ram Air Turbines Save Lives! A310 - Fuel Exhaustion July 12, Lives Saved Page 11

12 Ram Air Turbines Save Lives! Ram Air Turbine A330 - Fuel Leak - August 24, Lives Saved Page 12

13 Do Four-Engine Aircraft Need an Emergency RAT? Fuel Exhaustion Fuel Contamination Volcanic Ash Four-Engines Do Not Provide Protection From These Threats A340, A380,C-5A, C-17, and Nimrod all have Ram Air Turbines Page 13

14 All Airbus airplanes A300/310, A321/320/319/318, A330/340/ , A380 Boeing s newer airplanes 757, 767, and 777 DC-10/MD-11 Who uses RAT s Several Business and Regional Jet s Challenger, GX, F7X, CRJ, ERJ-700, 728JET C-17 & C-5A Many older military jets Page 14

15 The Worlds Leading Supplier of Ram Air Turbines Page 15

16 Why not use something else: Such as batteries or an APU RAT s offer: Unlimited duration of power No fuel required Low cost of ownership On demand reliable operation Full flight envelope performance RAT s are usually the most efficient method of providing aircraft emergency power Page 16

17 Description of RAT Operation Deploy signal commanded (automatic or manual) Uplock releases Deployment actuator provides force to open RAT compartment doors and deploy RAT into airstream Turbine locked in position until blades clear aircraft Turbine is released and accelerates to rated speed Turbine governor maintains speed control RAT provides emergency power to aircraft RAT remains deployed for rest of flight Page 17

18 Turbine Speed Governor Turbine governor adjusts blade angle to maintain constant rotational speed Page 18

19 RAT Speed Governor Mechanism At low speed Spring holds blades in fine pitch position (high power extraction) Page 19 At high speed Counterweights act to compress spring and rotate blades to coarse pitch position (low power extraction).

20 Typical Installations for Emergency Ram Air Turbines Mid-Fuselage Wing Flap Under Track Mount Wing Forward Fuselage Fuselage Mount (A340 RAT System) (Challenger/RJ RAT System) (belly) (Flap Track Fairing) (nose) Mid Fuselage Belly Mount (A321 RAT System) 15-35% Degradation 10-25% Degradation 5-10% Degradation Page 20

21 Typical RAT Aircraft Installation Stowed Position Deployed Position Page 21

22 Emergency Power Approach Hydraulic RAT with HMG CRITICAL FLIGHT CONTROLS HYDRAULIC LOADS HMG AC/DC CRITICAL LOAD BUS Page 22

23 Emergency Power Approach Electric RAT with ACMP CRITICAL FLI GHT CONTROLS HYDRAULIC LOADS ACMP AC/DC CRITICAL LOAD BUS Page 23

24 Emergency Power Approach Hybrid RAT (electric and hydraulic) CRITICAL FLIGHT CONTROLS HYDRAULIC LOADS AC/DC CRITICAL LOAD BUS HYDRAULIC PUMP OUTPUT GENERATOR OUTPUT Page 24

25 Hamilton Sundstrand RAT Product Line Existing Turbine Designs INCH DIAMETER Hawk Tornado 2.6 HP at 130 KEAS Horsepower Range 39.5 INCH DIAMETER A321 A320 A319 A318 A / HP at 130 KEAS Under development - 62 Diameter A380 RAT - 85 HP at 130 KEAS Page 25

26 Typical RAT Systems Page 26

27 RAT TEST Wind Tunnel Deployment and Start-up Page 27

28 Icing Conditions Testing Page 28

29 Lightning Strike Testing Page 29

30 RAT Powered Aerial Refueling Pod Page 30

31 Other Pod RAT Applications Target Towing Electronic Warfare Page 31

32 Over 50 Years of Electric Systems Aerospace Experience B-36 Commercial Military Business Ram Air Turbine MD-90 TU-204R C-5 RERP C-131 F-8U/2N A-10 DC-8 SERIES 70 GULFSTREAM IV A /600 LCA B-47 C-5A F-8U/3 C-133 CH-54 TORNADO CH53 E-8A AIRBORNE LASER CH-47D SAAB 2000 A400M VC-10 VFW-614 CL-600 F-3C JAS-39 A-3J SABRELINER XFV-12A EFA KC-135A TR-1 F-4 KC-135E SR-71 F2 CL-604 E-2C B-66 F-35 CH46 JA-37 FALCON 20 G-222/C-27 B-1B BAE-146 HAWKER 800 /1000 NIMROD 2000 DC-8 SERIES 60 X-31A AVRO RJ /700 /800 F-101 CL-44 S-3A E-3A F-20 JSF/CDA EH 101 F-22 ARJ21 CH-3C EA-6B B-57 DHC-7 SH / UH EFA 2000 ERJ-135 B-52H E-6A LEARJET 60 F /200 LEARJET 55 FALCON 200 B-2 DHC JETSTAR A319 AJ-37 V-22 C-17A L-159 A380 F-14A KC-135R B-52F/G E-4B RAH JET SR-71 A A340 DHC D609 G550-AEP MMA DC-8 C-135B L-1011 ERJ-145 CF-5 GV-SP HAWK MD-80 C-1 /ECM /STOL A330 J-35 CARAVELLE 10B 100 / T-45A SAAB 2000 CRJ-700 DC-9 F-27 F-15E FOKKER 70 SUKHOI RRJ B-57D /400 /500 C-141 F/A-18 E/F CARGOLIFTER B-58 F-28 US-1 HAWK 200 CL 160 CH47A-C F-16 C /D /N F-16 A/B VC-25A IL-96M/T MD-10 F-100 S2F P-2J A300B F-14B/D A-7A G-450 MERCURE AV-8B FOKKER 50 CRJ-100 / F-102 CONCORDE F-15 CL ADV 767 AWACS 737AEW&C CL-28 DHC-5D MD-11 A F-111 VH-3D C-5B GLOBAL EXPRESS EF-111A A310 X-45 UCAV 720B AMX LEARJET /200 A-4 H/M 757 A320 IDF HAWKER HORIZON E-10A 707 P-2E/H KFIR 767 FOKKER 100 DHC A-6E/KA-6D EMBRAER 727 DC-10 DHC /190 C-130J Falcon F7X F-18 C/ D ER Page 32

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34 e = d 0 dt Volts Page 34

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