sentences:  From 2 September to 15 October 1936, he served with "Kampfgeschwader" 253 (KG 253—253rd Bomber Wing) and from 16 October 1936 to 24 February 1937 was trained as an aircraft engine mechanic at the "Technische Schule Adlershof", the technical school at Adlershof in Berlin.On 14 March 1937, Rudorffer was posted to "Kampfgeschwader" 153 (KG 153—153rd Bomber Wing), where he served as a mechanic until end October 1938.He was then transferred to "Flieger-Ersatz-Abteilung" 51 (Flier Replacement Unit 51) based at Liegnitz in Silesia, present-day Legnica in Poland, for flight training.