Heinkel HeS 8

The Heinkel HeS 8 was an early centrifugal-flow jet engine designed by Hans von Ohain at Heinkel. It was the first jet engine financially supported by the German air ministry, the RLM, and carried the official designation 109-001. It was intended to power the Heinkel He 280 twin-engine fighter. The design placed the combustion chambers between the compressor and turbine to keep the engine only slightly wider than the compressor disc, and added a low-pressure impeller in the intake to steady the airflow. Delivered thrust crept up from about 500 kilograms-force to roughly 600 as an axial stage was added, and about 30 engines were completed. The He 280 first flew on HeS 8 engines on 2 April 1941, but in 1942 the RLM cancelled the HeS 8 and the HeS 30 and told Heinkel to move on to the larger HeS 011.