▁was ▁promoted ▁to ▁Fl ight ▁Lieutenant ▁and ▁in ▁July ▁ 1 9 4 0 ▁transferred ▁to ▁No . ▁ 2 3 4 ▁Squadron ▁R AF ▁as ▁a ▁flight ▁commander . ▁It ▁was ▁while ▁serving ▁with ▁No . ▁ 2 3 4 ▁that ▁he ▁was ▁mistaken ly ▁shot ▁down ▁on ▁ 1 3 ▁July ▁ 1 9 4 0 ▁by ▁a ▁Royal ▁Navy ▁war ship ▁off ▁the ▁English ▁south ▁coast . ▁He ▁was ▁promoted ▁to ▁Pil ot ▁Officer ▁in ▁ 1 9 4 1 . ▁ ▁He ▁became ▁temporary ▁commander ▁of ▁the ▁squad ron ▁in ▁October . ▁He ▁was ▁awarded ▁the ▁Dist ingu ished ▁F lying ▁Cross ▁in ▁August ▁ 1 9 4 2 . ▁In ▁ 1 9 4 3 , ▁Glas er ▁was ▁posted ▁to ▁Australia ▁ ▁as ▁O C ▁' B ' ▁Fl ight ▁of ▁No . ▁ 5 4 9 ▁Squadron ▁R AF , ▁ ▁a ▁Sp it fire ▁squad ron ▁charged ▁with ▁def ending ▁Dar win ▁against ▁Japanese ▁air ▁attack . ▁In ▁early ▁ 1 9 4 5 ▁he ▁was ▁promoted ▁S q n ▁L dr ▁and ▁posted ▁to ▁command ▁No ▁ 5 4 8 ▁Squadron ▁R AF , ▁also ▁at ▁Dar win . ▁In ▁ 1 9 4 6 ▁he ▁was ▁awarded ▁the ▁Air ▁E ffic iency ▁Award . ▁ ▁Test ▁pilot ▁ ▁After ▁two ▁years ▁he ▁returned ▁home , ▁was ▁granted ▁a ▁permanent ▁commission ▁and ▁posted ▁to ▁L inton - on - O use , ▁York shire . ▁There ▁he ▁was ▁flight ▁commander ▁of ▁No . ▁