After a fourteen - month gap in his aerial victory list , he scored flying a Sopwith Camel , on 18 December 1917 .
Late in 1917 , Gilmour was assigned to No. 65 Squadron RAF as a flight commander .
After a fourteen - month gap in Gilmour 's aerial victory list , Gilmour scored flying a Sopwith Camel , on 18 December 1917 .
Late in 1917 , Gilmour was assigned to No. 65 Squadron RAF as a flight commander .