Rolf Engel led a 1933 study group on special problems of liquid fueled rocket engines. Engel and members of the study group are seen at work. Beginning of a standardization and classification for the rocket problems. A diagram showing characteristics of rocket engines with standard nomenclature. A man with standardized rocket engine testing equipment. View of the standardized 6-copy multiple professional device for recording rocket engine performance. The work of Rudolf Nebel on the Rocket field of Berlin-Reinickendorf was continued under the leadership of Fritz Beck of the testing department of the German air guard (LSS) in 1933. But it was canceled in the spring of 1934 when the LSS took over direction of the German Air Sports Association. Letters to the Association noting that lessons of World War One point out the value of the Associations technical capabilities to National defense. They also mention matters of particular interest to the German Air Guard, such as rockets and Rocket torpedoes. An organizational chart showing various components under the Experimental Department of the German Air Guard.
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