Flt Lt 'Sandy' Johnstone was flying L1004 when on the night of 25/26 June 1940 he shot down a Heinkel He.111H-3 of 3./KG.26 near Dunbar in Scotland, and again on 30 June when he shared in the destruction of a Ju.88 of 1./KG.51. In July he was promoted to lead the squadron, and in August 1940 he took them down to Westhampnett in Sussex at the height of the Battle of Britain.