▁until ▁he ▁left ▁the ▁Jung vol k ▁to ▁prepare ▁for ▁his ▁di pl oma ▁exam ination . ▁Hel mut ▁passed ▁his ▁gradu ation ▁exam in ations ▁at ▁the ▁age ▁of ▁sevent een ▁on ▁ 1 2 ▁December ▁ 1 9 3 5 . ▁On ▁ 2 ▁February ▁ 1 9 3 6 , ▁he ▁began ▁the ▁eight - week ▁comp uls ory ▁National ▁Labor ▁Service ▁( Re ich s arbe its dienst ) ▁at ▁Mo hr in . ▁He ▁joined ▁the ▁military ▁service ▁in ▁the ▁Luft wa ffe ▁as ▁a ▁F ah nen j unker ▁on ▁ 1 ▁April ▁ 1 9 3 6 , ▁against ▁the ▁wishes ▁of ▁his ▁father . ▁ ▁His ▁military ▁training ▁began ▁on ▁ 6 ▁April ▁ 1 9 3 6 ▁at ▁the ▁ 2 nd ▁Air ▁War fare ▁School ▁( Lu ft krie gs schule ▁ 2 ) ▁at ▁G at ow , ▁on ▁the ▁south - western ▁out sk ir ts ▁of ▁Berlin . ▁He ▁sw ore ▁the ▁National ▁Social ist ▁o ath ▁of ▁alleg iance ▁on ▁ 2 1 ▁April ▁ 1 9 3 6 . ▁Fl ight ▁training ▁began ▁on ▁Monday , ▁ 7 ▁August ▁ 1 9 3 6 ▁at ▁G at ow . ▁His ▁first ▁flight ▁was ▁in ▁a ▁He inkel ▁He ▁ 7 2 ▁K ad et ▁D - EY Z A ▁single ▁engine ▁bi plane . ▁L ent ▁logged ▁his ▁first ▁solo ▁flight ▁on ▁ 1 5 ▁September ▁ 1 9 3 6 ▁in ▁a ▁F ock e - W