 After recovering he took up staff duties for a year , until 16 September 1941 , when he was made Staffelkapitän ( Squadron leader ) of a newly formed night @-@ fighter training unit , 2 . / Nachtjagdschule 1 ( coming out of 2 . / Zerstörerschule 1 ) . Soon after , on 31 October , Hauptmann ( Captain ) Specht was promoted to Kommandeur of III . / NJS 1 . Located at Ingolstadt @-@ Manching , Specht instructed pilots in conversion to night fighting . Paul Zorner , a future night fighter expert , was one of his students . Leading the Gruppe for exactly one year , this was the last time Specht flew a twin engine aircraft , whereupon he returned to combat duties . 
