2 7 – 1 9 2 9 ▁His ▁time ▁at ▁the ▁Air ▁Ministry ▁was ▁marked ▁by ▁several ▁important ▁develop ments ▁that ▁were ▁to ▁confirm ▁the ▁status ▁of ▁the ▁Royal ▁Air ▁Force ▁as ▁a ▁separate ▁entity , ▁play ▁a ▁part ▁in ▁the ▁growth ▁of ▁civil ▁av iation ▁and ▁to ▁develop ▁the ▁aw aren ess ▁of ▁the ▁public ▁about ▁av iation . ▁ ▁An ▁early ▁priority ▁for ▁Sir ▁Hugh ▁T rench ard , ▁Chief ▁of ▁the ▁Air ▁Staff ▁ 1 9 1 9 – 1 9 3 0 , ▁was ▁to ▁establish ▁the ▁officer ▁cad et ▁training ▁college ▁at ▁C ran well ▁as ▁a ▁permanent ▁establishment . ▁It ▁was ▁Ho are ' s ▁job ▁to ▁negoti ate ▁with ▁the ▁Tre as ury ▁for ▁the ▁necessary ▁funds . ▁After ▁much ▁resistance ▁Ho are ▁managed ▁to ▁include ▁a ▁provision ▁for ▁permanent ▁buildings ▁in ▁his ▁estimates ▁for ▁ 1 9 2 9 . ▁The ▁foundation ▁stone ▁of ▁the ▁Royal ▁Air ▁Force ▁College ▁C ran well ▁was ▁laid ▁in ▁ 1 9 2 9 ▁and ▁formally ▁opened ▁in ▁ 1 9 3 4 . ▁ ▁T rench ard ▁had ▁conce ived ▁the ▁idea ▁of ▁a ▁university ▁air ▁officer ▁training ▁corps , ▁a ▁sort ▁of ▁Territ orial ▁Army ▁for ▁the ▁R . A . F . ▁Ho are ▁and ▁particularly ▁his ▁well ▁connected ▁Parliament ary ▁Private ▁Secretary ▁the ▁academic ▁Sir ▁Geoff rey ▁Butler , ▁then ▁created ▁University ▁Air ▁Squad rons , ▁at ▁Cambridge ▁University ▁then ▁at ▁Oxford ▁University ▁in ▁October ▁ 1 9 2 5 , ▁without , ▁however ▁the