▁( ground ▁tr ades ) ▁- ▁ 1 ) ▁DE ▁( Te chn ician ) ▁- ▁Sign ific antly ▁longer ▁trade ▁training ▁meant ▁remaining ▁at ▁AC ▁rank ▁throughout , ▁ultimately ▁ski pping ▁the ▁ranks ▁of ▁L AC ▁and ▁S AC . ▁ ▁Upon ▁completion , ▁immediate ▁promotion ▁to ▁J T ▁rank , ▁( also ▁el ig ible ▁for ▁early ▁promotion ▁to ▁C pl ). ▁ 2 ) ▁DE ▁( non - techn ical ▁tr ades ) ▁- ▁A ▁rec ruit ▁for ▁a ▁given ▁trade ▁already ▁possess ing ▁the ▁equivalent ▁qual ifications ▁that ▁the ▁relevant ▁R AF ▁trade ▁training ▁course ▁would ▁provide . ▁Upon ▁completion ▁of ▁a ▁significantly ▁shorter ▁DE ▁course , ▁immediate ▁promotion ▁to ▁S AC ▁rank , ▁( o ften ▁with ▁just ▁ 2 ▁– ▁ 4 ▁months ▁total ▁service , ▁rather ▁than ▁the ▁normal ▁requirement ▁to ▁have ▁served ▁for ▁a ▁minimum ▁of ▁ 1 2 ▁months ). ▁ 3 ) ▁DE ▁( PM RA F NS ▁( N ur se )) ▁- ▁A ▁long - standing ▁DE ▁program ▁has ▁existed ▁for ▁candidates ▁already ▁possess ing ▁the ▁required ▁civ vy ▁qual ifications . ▁ ▁Im mediate ▁promotion ▁to ▁A / C pl ▁rank ▁upon ▁completion ▁of ▁R AF ▁basic ▁training , ▁( subst ant ive ▁rank ▁is ▁immediately ▁att ained ▁following ▁completion ▁of ▁" J ML C " ▁and ▁" T MT ". ▁Dead ▁stick ▁- ▁Engine ▁failure ▁leading ▁to ▁a ▁gl ided ▁dead st ick ▁landing . ▁De ck ▁- ▁The ▁ground . ▁Dem ob ▁- ▁Dem obil isation , ▁returning