▁ref using ▁to ▁re im bur se ▁their ▁exp enses . ▁ ▁Following ▁completion ▁of ▁CG SS ▁on ▁June ▁ 2 1 , ▁ 1 9 3 5 , ▁Old s ▁was ▁promoted ▁to ▁major ▁( tem por ary ▁on ▁June ▁ 3 0 ▁and ▁permanent ▁on ▁August ▁ 1 ). ▁He ▁returned ▁to ▁Lang ley , ▁where ▁the ▁command ▁staff ▁of ▁the ▁General ▁Head quarters ▁Air ▁Force ▁was ▁station ed , ▁and ▁joined ▁it ▁as ▁Chief ▁of ▁In spe ction ▁Section ▁under ▁G H Q AF ▁commander ▁Maj . ▁Gen . ▁Frank ▁Andrew s , ▁the ▁driving ▁force ▁behind ▁ac quisition ▁of ▁the ▁B - 1 7 ▁F lying ▁Fort ress . ▁On ▁March ▁ 1 , ▁ 1 9 3 7 , ▁Old s ▁was ▁promoted ▁to ▁lieutenant ▁colon el ▁and ▁selected ▁to ▁command ▁the ▁ 2 nd ▁B G , ▁which ▁was ▁about ▁to ▁receive ▁the ▁first ▁twelve ▁oper ational ▁B - 1 7 s . ▁To ▁ful fill ▁a ▁directive ▁from ▁Andrew s ▁to ▁build ▁a ▁cap ability ▁of ▁conduct ing ▁bomb ing ▁miss ions ▁anywhere ▁in ▁the ▁world ▁and ▁in ▁any ▁weather , ▁Old s ' ▁training ▁emphas ized ▁compet ency ▁in ▁instrument ▁land ings ▁and ▁take offs , ▁and ▁long ▁range ▁navigation . ▁ ▁Old s ' ▁command ▁tour ▁at ▁Lang ley ▁developed ▁standard ▁operating ▁procedures ▁and ▁tact ics ▁for ▁the ▁B - 1 7 , ▁and ▁was ▁marked ▁by ▁numerous ▁highly ▁public ized ▁exer cis es ▁and ▁good will ▁miss ions . ▁In ▁August ▁ 1