Heinkel HeS 3

Heinkel HeS 3

The HeS 3 was the world's first operational jet engine to power an aircraft. Designed by Hans von Ohain while working at Heinkel, the engine first flew as the primary power of the Heinkel He 178 on 27 August 1939. Although successful, the engine had too little thrust to be really useful, and work started on the more powerful Heinkel HeS 8 as their first production design.

In some ways the HeS 3 design was simply a cleanup of the original HeS 1, converted to burn liquid fuel instead of the HeS 1's hydrogen gas. von Ohain was also unhappy with the large external diameter of the HeS 1, and re-arranged the layout of the new engine to allow the parts to be "folded together" in a more compact layout.

The first HeS 3 design was generally similar to the HeS 1, using a 16-bladed centrifugal compressor supported by an 8-blade impeller to smooth out the airflow in the intake. The compressed air flowed into an annular combustion chamber arranged to lie between the compressor and turbine, which were separated much more than in the HeS 1 to allow this arrangement. The first example was bench tested around March 1938, but the arrangement led to a smaller than useful compressor and poor combustion.

A redesign started as the HeS 3b, which dispensed with the "folded" arrangement and returned to simpler flame cans for combustion. In order to keep the dimensions small, the widest part of the cans were arranged in "front" of the engine, the compressed air first flowing forward into the cans, and then rearward to the tubine. Although not as compact as the original design, the 3b was much simpler. Designed to run on gasoline, the fuel flow was preheated by running it over the rear roller bearing.

The engine was completed in early 1939, and was flight-tested under one of the remaining Heinkel He 118 dive bomber prototypes. The flight tests were carried out in extreme secrecy, taking off and landing under propeller power, and only flying in the early morning before other workers had arrived. Testing proceeded smoothly, but the engine eventually burned out its turbine.

A second engine was completed just after completion of the He 178 airframe, so it was decided to move directly to full flight tests. A short hop was made on 24 August during high-speed taxi tests, followed by full flight on 27 August, the first aircraft to fly solely under jet power. Testing continued and in November the aircraft was demonstrated to RLM officials in hopes of receiving funding for the development of a larger engine, but nothing seemed forthcoming.

Hans Mauch later told von Ohain the RLM was in fact extremely impressed, but he was concerned that Heinkel's airframe team did not have the knowledge to undertake engine development. Instead he and Helmut Schelp secretly visited a number of aircraft engine manufacturers to try to start programs there. Mauch left his position in 1939 leaving Schelp in command. Schelp was not as concerned about where development was taking place, and immediately started funding Heinkel to produce a more powerful engine.

Work on a larger version, the HeS 6, started immediately, and was tested under a Heinkel He 111 late in 1939. While successful, notably in terms of vastly improved fuel economy, the weight was considered excessive and the design was abandoned in favour of the more advanced Heinkel HeS 8.


For HeS 3b::Dimensions: 1.48 m long, 0.93 m diameter:Weight: 360 kg:Thrust: 450 kgf (4.4 kN) @ 13,000 rpm and 800 km/h:Compression ratio: 2.8:1:Specific fuel consumption: 2.16 gal/(lb·h) [18.0 L/(kg·h)]

For HeS 6::Weight: 420 kg:Thrust: 550 kgf (5.4 kN) @ 13,300 rpm and 800 km/h:Specific fuel consumption: 1.6 gal/(lb·h) [13.4 L/(kg·h)]


*"German Jet Engine and Gas Turbine Development", Antony Kay, Airlife Books, 2002

Wikimedia Foundation. 2010.

См. также в других словарях:

  • Heinkel HeS 8 — Motor turborreactor desarrollado en Alemania durante el III Reich. Contenido 1 Descripción …   Wikipedia Español

  • Heinkel HeS 3 — Turbojet Triebwerk, Nachbau Deutsches Museum München. Das HeS 3 ist ein Strahltriebwerk, das in den 1930er Jahren des von Hans von Ohain entwickelt wurde. Ernst Heinkel erhielt 1935 den Hinweis, dass an der Universität Göttingen Hans von Ohain… …   Deutsch Wikipedia

  • Heinkel HeS 8 — The HeS 8 (prefix being an abbreviation for Heinkel Strahltriebwerk Heinkel Jet Engine) was an early jet engine designed by Hans von Ohain while working at Heinkel. It was the first jet engine to be financially supported by the RLM, bearing the… …   Wikipedia

  • Heinkel HeS 30 — The HeS 30 was an early jet engine, originally designed by Adolf Müller at Junkers, but eventually built and tested at Heinkel. It was possibly the best of the Class I engines, a class that included the more famous BMW 003 and Junkers Jumo 004,… …   Wikipedia

  • Heinkel HeS 1 — Le Heinkel HeS 1 fut le premier réacteur d avion allemand à fonctionner, sur banc, à l hydrogène. Historique En février 1936, Pohl a écrit à Ernst Heinkel, de la part de Hans von Ohain, lui décrivant la conception et ses possibilités. Heinkel a… …   Wikipédia en Français

  • Heinkel HeS 1 — The Heinkel HeS 1 was the first jet engine, which was a stationary test item that ran on hydrogen.HistoryIn February 1936, Pohl wrote to Ernst Heinkel on behalf of Hans von Ohain, telling him of the design and its possibilities. Heinkel arranged… …   Wikipedia

  • Heinkel HeS 40 — The Heinkel HeS 40 was an experimental constant volume jet engine designed by Adoph Müller s team at Heinkel starting some time in 1940 or 41. It was based on the mechanical layout of the HeS 30, but replaced the conventional flame cans with… …   Wikipedia

  • Heinkel HeS 011 — HeS 011 Un Heinkel HeS 011 preservado. Tipo Turborreactor Fabricante …   Wikipedia Español

  • Heinkel HeS 011 — The Heinkel HeS 011 was an advanced World War II jet engine built by Heinkel Hirth. It featured a unique compressor arrangement, combining a three stage axial compressor with a diagonal stage similar to a centrifugal compressor, along with a low… …   Wikipedia

  • Heinkel HeS 011 — Das Heinkel HeS 011 Triebwerk Das Heinkel HeS 011 ist ein Strahltriebwerk des deutschen Herstellers Heinkel. Mit diesem Triebwerk sollten nahezu sämtliche Entwürfe von Flugzeugen mit Strahlantrieben, die gegen Ende des Krieges im Dritten Reich… …   Deutsch Wikipedia

Поделиться ссылкой на выделенное

Прямая ссылка:
Нажмите правой клавишей мыши и выберите «Копировать ссылку»