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Auxiliary power plant in the tail of the aircraft with open hood covers
Douglas AD-5N Skyraider dive bomber with extra fuel tank and torpedo taxiing. Photo taken in 1953.
Industrial gas turbine. Equipment for energy industry. Gas turbine during repair. Industrial technologies. Gas turbine for compressor station. Repair and maintenance of fuel equipment
Jet aircraft engine in the hangar
Turboprop engine of P-3C Orion on static display at Portland Jetport.
Rebuilt, aircraft gas turbine engine on stand.
Aircraft propeller, Douglas TBD Devastator war torpedo bomber
Lockheed Constellation Passenger Airliner
Close up view of a propeller on an old air craft
Front view Fairchild C-119 Flying Boxcar military airplane taxiing for takeoff. Scanned film photographed in 1967.
Aircraft jet engine combustor chamber inner view, b&w
Lisbon, Portugal: boxed aircraft auxiliary power unit (APU) - the APU is a small turbine engine that provides air and electricity, no hydraulics, but electricity and air can run hydraulic pumps. APUs are typically located in the tail cone of the aircraft, but they can also be located in the engine nacelles or in the wheel wells. APUs can be started using either the aircraft's batteries or a ground power unit (GPU). Once the APU is running, it generates electrical power through a generator. APUs are also used by some airlines to reduce fuel consumption. For example, some airlines use the APU to power the aircraft's air conditioning system on the ground, instead of using the main engines. This can save fuel, as the main engines are more fuel-efficient when they are running at higher speeds - Lisbon Airport, aka Humberto Delgado airport.
Patuxent River, Maryland, USA - February 13, 2016: Close-up of a U.S. Navy McDonnell Douglas TA-4J Skyhawk jet fighter/trainer on static display at the U.S. Naval Test Pilot School at Naval Air Station Patuxent River.
Huge jet engine
Space Orbiter Engine Close-up
Screws of military huge aircraft. Airforce background.
C-118 Liftmaster airplane taxiing at Andrews Air Force Base, Camp Springs, Maryland (Washington DC) 1962. Scanned film with grain.
Miramar, California, USA - September 23, 2023: The side view of a US Navy V-22 Osprey on display at America's Airshow 2023.
A propeller-driven, four engine airliner built by Lockheed Corporation in 1943.  The first pressurized cabin civil airliner.
Engine of a small ship in the engine room. CLIP. An engine room with an engine to which blue pipes connected with people in the background.
Propeller Jet Engine
Evocative black and white image of a 1930s propeller airliner. The photo shows the tail and passenger door, with the aircraft parked on a snowy airport. Boeing 247 of United Air Lines
Decommissioned Canadian Air Force aircraft.
Industrial Steel Machinery Monochrome Overhead Complex View
Waterloo, Iowa, USA - 1966: US Air Force Fairchild C-119 Flying Boxcar military airplane taxiing for takeoff. The aircraft has just loaded US Air Force reserves for transport to annual training. Scanned film.
Sarasota, FL , USA- February 28, 2014: Wright R-3350 Duplex Cyclone radial engines, part of the only flying WWII Boeing B29 Superfortress Bomber Plane on display in Sarasota Fl as it tours the USA
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) -
turbines of an historical aircraft
Underside of a  jet airplane wing.
Free Images: "bestof:XP5Y-1 engines NAN6-50.jpg Engine test of the Allison T40 turbo-prop engine of the Convair XP5Y-1 Tradewind in 1950 U S Navy Naval Aviation News June 1950 http"
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(Portrait_of_Duke_Ellington,_Howard_Theater(?),_Washington,_D.C.,_ca._June_1946)_(LOC)_(4932366288).jpg
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(Portrait_of_Sylvia_Syms,_Little_Casino(?),_New_York,_N.Y.,_ca._June_1947)_(LOC)_(5148191407).jpg
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(Portrait_of_Dardanelle,_Joe_Sinacore,_and_Bert_Nazer,_Sheraton_Hotel,_Satire_Room(?),_New_York,_N.Y.,_ca._June_1946)_(LOC)_(5269517304).jpg
(Portrait_of_Duke_Ellington,_Howard_Theater(?),_Washington,_D.C.,_ca._June_1946)_(LOC)_(4932365776).jpg
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(Portrait_of_Billie_Holiday,_Downbeat(?),_New_York,_N.Y.,_ca._June_1946)_(LOC)_(4843747486).jpg
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(Portrait_of_Stan_Kenton,_June_Christy,_Laurindo_Almeida,_Bob_Gioga,_Shelly_Manne,_and_Eddie_Safranski,_Richmond,_Va.(?),_1947_or_1948)_(LOC)_(5019800169).jpg
(Portrait_of_Dardanelle,_Joe_Sinacore,_and_Bert_Nazer,_Sheraton_Hotel,_Satire_Room(?),_New_York,_N.Y.,_ca._June_1946)_(LOC)_(5268905963).jpg
(Portrait_of_June_Christy,_Laurindo_Almeida,_Bob_Gioga,_Eddie_Safranski,_Shelly_Manne,_Chico_Alvarez,_Ray_Wetzel,_and_Harry_Betts,_Richmond,_Va.(?),_1947_or_1948)_(LOC)_(5354787922).jpg
Flickr_-_Official_U.S._Navy_Imagery_-_Sailors_from_USS_New_Orleans_play_soccer_with_Colombian_sailors_and_marines..jpg
E-2C_VAW-115_CV-63_2007.JPEG
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Flickr_-_Official_U.S._Navy_Imagery_-_Sailor_plays_soccer_with_Gabonese_children_during_a_community_service_event_for_Project_Handclasp.jpg
Flickr_-_Official_U.S._Navy_Imagery_-_Sailors_play_soccer_with_Colombian_sailors_and_marines..jpg
Flickr_-_Official_U.S._Navy_Imagery_-_USS_Vandegrift_transits_shortly_after_sunrise_toward_its_anchor_location_off_the_coast_of_Palau_Pangkor,_Malaysia..jpg
SLNSW 13194 Women volunteer workers doing up clothing parcels at the ACF rooms taken for Australian Comforts Fund.jpg
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