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Thanks for the answer...
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Click for Diagram.
The thing in the front center of this view is a Riedel two-stroke gasoline engine which was used to start the turbojet.
The other German Jet engine that saw service was the BMW 003, which was used on the He 162 Volksjäger and the Ar 234 reconnaissance/light-bomber. It was smaller in diameter but had less power.
BMW 003 axial-flow turbojet.
In development was a more-powerful Heinkel-Hirth He S 011 engine.
Click for Enlargement!
The first powered turbojet flight was with a He 178 using an He S-3 engine developed by Hans von Ohain, which did not produce a lot of thrust. The first jet-powered flight was on August 27, 1939 with Heinkel test pilot E. Warsizt.
Heinkel He S-3 engine and He 178 aircraft.
All German turbojets were axial-flow, whereas all Allied turbojets such as the one on the British Gloster Meteor and the American P-80 were radial-flow. These had more thrust but less potential for high-speed development. All modern turbojets are axial-flow models, but the turbojet itself has mostly given way to the turbofan used on commercial airliners for better fuel-economy. No WWII turbojets used afterburners.
Below, radial-flow W-1 engine, designed by Frank Whittle and used on the Gloster Meteor, also the basis for the General Electric J-33 engine (Click!) essentially used on the American P-80/F-80/T-33 and later F-86 Sabre jets.
Hope this helps.