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The turbojet-powered Heinkel He 178, the world's first jet aircraft, took its first flight on August 27, 1939. It was flown by German test pilot Erich Warsitz; the He 178 was a small, metal aircraft that ran on diesel fuel, the jet intake was in the nose and the plane was fitted with tailwheel undercarriage, the main landing gear was retractable, but remained fixed in "down" position throughout the flight trials, maximum speed was around 380 mph for the radial-flow turbojet.

Source. https://www.edn.com/electronics-blogs/edn-moments/4394772/1st-jet-aircraft-takes-flight--August-27--1939

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An airplane driven by an air-jet engine (a turbojet engine, a ram jet engine, a pulsating air-breathing engine, a liquid jet engine, etc.) or a rocket engine. Jet aircraft form the basis of modern military and civil aviation.
Romanian engineer Henri Coanda in 1910 created and tested a Coanda-1910 aircraft with a piston engine, instead of an air propeller, propelled by the simplest lobe compressor. Later, after the end of World War II and the widespread introduction of jet engines, the designer claimed that the installation he created was a motor-compressor jet engine, which was contrary to his original publications and patent applications. . According to A. Coanda, the flow of hot gases really burned the tail of the plane in the first flight.
Source:https://ru.wikipedia.org/wiki/%D0%A0%D0%B5%D0%B0%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D1%8B%D0%B9_%D1%81%D0%B0%D0%BC%D0%BE%D0%BB%D1%91%D1%82

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Admin (08-02-2018) Your team has not a right photo for the timeline (square photo at least 500x500, witth no logo on it and not in a collage). So, no photo from your team for the timeline amd in dotstorming except admins suggestion. Please, work on this! Description from Mihai ok

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The "turbojet", was invented in the 1930, independently by frank whittle and later hans von ohain. The first turbojet aircraft to fly was the heinkel he 178 V1 first prototypeof the german Air Force, the luftwaffe, on August 27, 1939 in rostock. A jet aircraft is an aircraft propelled by Jet engines

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Kate Liutikova Kyiv. Turbojet-powered Aircraft

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Kate Liutikova Kyiv. Turbojet-powered Aircraft

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The beginning of new age of aviation was the invention of the Heinkel HE 178 in 1939. The Heinkel company was found in 1922 by Ernst Heinkel. This company worked on development of airframes for a long time. On August 27th 1939 the first flight ended when the aircraft ingested a bird that forced flameout of the engine. However the test pilot  - Flugkapitan Erich Warsitz - managed to bring his mount down safely.
Source: https://www.militaryfactory.com/aircraft/detail.asp?aircraft_id=214

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Heinkel Flugzeugwerke was a German aircraft manufacturing company founded by and named after Ernst Heinkel. It is noted for producing bomber aircraft for the Luftwaffe in World War II and for important contributions to high-speed flight, with the pioneering examples of a successful liquid-fueled rocket and a turbojet-powered aircraft in aviation history, with both Heinkel designs' first flights occurring shortly before the outbreak of World War II in Europe.