Boulton Paul Defiants of 264 Squadron engage Heinkel 111s of III/KG51 over Dunkirk on the second day of Operation Dynamo, 27th May 1940.

Shown here is Squadron Leader Phillip Hunter in L6973 PS-A under the starboard wing and Pilot Officer Young under the port wing in L7003 PS-L pouring fire into a Heinkel by flying in the bomber's blind spots This tactic also proved to be a success for other crews on this day and was one of many pre-planned attack profiles that the squadron had practiced.