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Lisbon, Portugal: Ram Air Turbine (RAT)  is a small propellor that will deploy in a serious emergency to supply emergency backup electrical power to the aircraft. Usually this happens after all main engines and the APU (auxiliary power unit) fail. Behind the two-blade propeller a hydraulic pump can be seen, besides power, the RAT provides emergency hydraulic pressure. The RAT generates power from the airstream by ram pressure due to the speed of the aircraft. It may be also called an air driven generator (ADG) -
Close up view of a propeller on an old air craft
Jet aircraft engine in the hangar
8-piston aeronautical radial engine bottom view
iron works blast furnace parts, closeup of photo
Vintage aeroplane propeller.
Close up of the rear of one of the Rolls Royce engines of an Emirates A380-842 parked behind a tall security fence, near the fire station at Sydney Kingsford-Smith Airport. The lines on the image are the steel bars of the security fence.  The plane, registration A6-EVE, was later towed to the international terminal and departed that evening as flight EK413 to Dubai.  This image was taken from Kyeemagh Avenue, Kyeemagh on a partly cloudy afternoon on 17 March 2023.
OQ-19 Radioplane radio-controlled aerial target airplane on display at dedication of new terminal at Livingston Betsworth Field (Waterloo Municipal Airport), Waterloo, Iowa, USA in June 9-10, 1951.
A propeller-driven, four engine airliner built by Lockheed Corporation in 1943.  The first pressurized cabin civil airliner.
Side view of an old air craft jet engine without its covers
Wide angle image of mechanical engineering in Aeronautics. Belonging to a Euro-fighter Typhoon.
Open engine compartment of an airplane at an aviation exhibition. Air transport
Engine of helicopter in hangar.
View from Bellow of a propeller of an old dismantled plane inside a hangar to study its parts
Elvington, Yorkshire, United Kingdom - 11 07 2023: Fairey Gannet a British fighter carrier based early warning and asw aircraft used by the royal navy from the 1950s to the late 1970s at Elvington Airfield near York
Lockheed Constellation Passenger Airliner
Biplane with 9-cylinder double-row radial engine on a cloudy day
Jet pod and antigravity technology.
Turbo prop engine winds up on a twin engined Dornier 228
Jet Aircraft Engine
Turbine nozzles of a passenger plane close up at an airfield. Part of the aircraft body
full-frame jet engine
Elvington, Yorkshire, United Kingdom - 11 07 2023: Blackburn Buccaneer S2, a British carrier based Royal Navy Fleet Air Arm and RAF attack aircraft in the hanger at Elvington airfield
Gulfstream G-4 engine and tail in black and white.Click on an image to go to my Civilian Airplane Lightbox.
Hendon, London, UK - June 29, 2014: Historic aircraft on display at the main entrance of London R.A.F. Museum.
English Electric Canberra, first generation British cold war twin jet engine military bomber and  long-range, photo-reconnaissance aircraft in flight over Poole bay, English Channel in blue clear sky
Free Images: "bestof:NapierRapier.JPG en Napier Rapier aero engine Own Nimbus227 2008-09-21 Napier Rapier Aircraft engines at the Shuttleworth Collection H16 engines"
ULPower UL260i.jpg
A_"Whirlwind"_radial_airplane_engine.jpg
SNECMA Atar of a Mirage III RS pic2.JPG
Fire engine ZIL-131 2009 G2.jpg
Fire engine ZiL AC 2009 G1.jpg
Allison v 1710 vee 12 engine at Smithsonian museum.jpg
Philia Hellenic Center for Marine Research Heraklion harbour.jpg
SUNBEAM_350HP.jpg
5 9 engine gen.jpg
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WikiDartEngine.gif
airport-vehicle-security-fire-1374707.jpg
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Fire station Vatican 12.jpg
Prevention video filming of fws engine on structure protection.jpg
XB-70A_#1_liftoff_with_TB-58A_chase_aircraft.jpg
ConcordeIntakeNozzle.svg
00036772_SDASM.jpg
SLNSW 27905 Engine of diesel train.jpg
Stirling template.svg
Conceptual drawing for a simple steam engine.svg
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P-v diagram four stroke piston engine.svg
Käferkühlung.svg
Temperature-entropy chart of a turboshaft engine with reheat and intercooling.svg
00036773_SDASM.jpg
Installing aeroplane engine (LOC) (21057909578).jpg
Mitsubishi Ki-57 Topsy wrecked.jpg
JR-1B_mail_airplane_designed_by_the_Standard_Aircraft_Corporation.jpg
00036778_SDASM.jpg
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Design_Analysis_of_the_Lockheed_PV-1_Ventura.png
Royal_Flying_Corps_mechanical_workshop.jpg
Steam_Engine.jpg
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Plate armour details.svg
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Stinson A.jpg
Stinson U.jpg
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William_""Bill""_Wheatley_Collection_Photo_Commercial_planes_at_Buffalo.jpg
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Brayton Cycle TS Afterburner.svg
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December_7,_1960.jpg
00040316_SDASM.jpg
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ICar 101 Ultimate.jpg
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Canal, Giovanni Antonio - Venice, Piazza San Marco looking east towards basilica - Sotheby's, London 3 December 2014, lot 11.jpg
Railroad train in Korea, (s.d.) (Taylor box21num31).jpg
Adolphe_Heri_DuBois_Special_Collection_Photo.jpg
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Pulsrohr.svg
SLNSW 15405 Engine.jpg
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SLNSW 20733 Diesel engine at Petersham.jpg
SLNSW 20736 Diesel engine at Petersham.jpg
0036922_SDASM.jpg
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SLNSW 28121 Aircraft radio AWA Conference.jpg
SLNSW 34696 Model aircraft Norman Lyons.jpg
SLNSW 34709 Model aircraft Norman Lyons.jpg
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SLNSW 34701 Model Spitfire aircraft Norman Lyons.jpg
SLNSW 37847 Royal Newcastle Aero Club planes leaving for Hobart for regatta.jpg
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SLNSW 21171 Antiaircraft Machine Gun Company camp at Narrabeen.jpg
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