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Adjustable exhaust nozzle with partly expanded diffusers - a variable area nozzle is required in a jet engine for optimal expansion and adjusting back pressure in the engine when the afterburner is operated, it avoids compressor surge problems due to the increased back pressure on the engine when the afterburner is lit - engines capable of supersonic flight have convergent-divergent exhaust duct features to generate supersonic flow - GE F110 afterburning turbofan jet engine on F-16 fighters - empennage close-up of exhaust and elevator.
Japanese Zero on tarmac shot under a wing of a USAF palne
A scale model of the iconic B-17 Flying Fortress sitting on a scale model airfield. The B-17 was an American four-engined heavy bomber aircraft developed in the 1930s for the United States Army Air Corps and made by Boeing.
P-47G Thunderbolt (WWII American fighter plane)  with its “Invasion Stripes”, in a very low pass
Italian Warship Leaving the Harbor in 1940.
The image shows the nose of a Boeing B-17F WWII bomber.  The aircraft is parked on the ramp with a backdrop of a brooding, low overcast.  In black and white tones the photo presents a vintage, gritty quality like it was from the period.  The photo was taken at the Grant County International Airport in Moses Lake, WA.
RAF Lancaster Bomber PA474 flying in mid air over Flevoland during the 2022 4th of May memorial day in The Netherlands. The Avro Lancaster heavy bomber is operated by the Royal Air Force Battle of Britain Memorial Flight and is making a tribute to all members of Bomber Command shot down over The Netherlands.
San Diego, United States – November 12, 2022: The Grumman C-1 Trader parked on the runway
Beja, Portugal: parked General Dynamics F-16 Fighting Falcons of the Portuguese Air Force - in the foreground a twin-seat F-16 BM version, the rest are F16 AMs - equipped with external fuel tanks - Beja Airport serves both civil and military aviation.
WWII bomber. B-25 Mitchell.
Tucson, Arizona, USA - March 25, 2023: The PB4Y-2 Privateer, a patrol bomber used by the US Navy and Coast Guard, on display at the 2023 Thunder and Lightning Over Arizona airshow.
A old jet fighter finds some rest in the desert. Antelope valley,Ca.,USA.
October 6- Naha, Okinawa, Japan: Naha is the capital of Okinawa and the US military base is located here. Here are the military airplanes of Japan Air Self-Defense Force.
Old WW2 era cargo aircraft closeup nose view
Military ship at the harbour, background with copy space, full frame horizontal composition
Mobile, Alabama, USA - February 11, 2022: USS Alabama Battleship Memorial Park in Mobile, Alabama, USA. Battleship Memorial Park is a military history park and museum.
Waikiki, Honolulu, Oahu, Hawaii, USA: Japanese Light Tank, on street display outside the U.S. Army Museum of Hawaii - Type 95 Ha-Gō (九五式軽戦車 ハ号, aka Ke-Go) was a light tank used by the Empire of Japan during the Second Sino-Japanese War, at Nomonhan against the Soviet Union, and in the Second World War.
Tucson, Arizona - December 21, 2023: US US Military aircraft on display at the Pima Air and Space Museum
Old Navy Jet Fighter On Display Outside Air Station Gate North Island  Coronado California
A Classic World War Two Spitfire
Miramar, California, USA - September 23, 2023: The side view of a US Navy V-22 Osprey on display at America's Airshow 2023.
Douglas AD-5N Skyraider dive bomber with extra fuel tank and torpedo taxiing. Photo taken in 1953.
A B-17 Bomber Preparing For Take-off
Beja, Portugal: a retired Luftwaffe Lockheed F-104 Starfighter aircraft at Air Base No. 11 (Base Aérea Nº 11, BA11) - US built single-engine, supersonic interceptor aircraft.  In 1958, West Germany selected the F-104 as its primary fighter aircraft. Air Base No. 11 was run by the Luftwaffe until 1993.
Yogyakarta, Indonesia, July 24, 2016. The trainer plane exits the hangar onto the tarmac preparing for flight practice at Adisutjipto airfield.
Stock Photography of D-Day Paratroopers getting ready to jump. \n\nNote: number on the nose is only the invasion stick number and does not ID the plane.
May 6, 2024, Athens, Greece. An old North American F-86D Sabre, fighter aircraft, outside the War Museum
Polish Mig 15UT from the PIMA Air and Space Museum in Arizona.
Free Images: "bestof:Corpus Christi Aug 1942.jpg A Grumman F3F-2 fighter BuNo 1014 used for training at the U S Navy Naval Air Station Corpus Christi in August 1942 LOC-image fsa"
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