Claim: Allan Hepburn flew a Bristol F.2b East of Middelkerke with opponent Albatros D.V. (a fighter aircraft built by the Albatros Flugzeugwerke) and again at Ostend.
Evidence: Wing Commander Allan Hepburn, DFC, (11 October 1896 – 21 July 1975) was an Australian World War I flying ace, who was born in Melbourne, Victoria. In April 1918, Hepburn returned to duty flying a Bristol F.2 Fighter, commanding the "A" Flight of 88 Squadron of the RAF. 1 17 May 1918
@ 0745 Bristol F.2b
(C821) Albatros D.V 2 31 May 1918
@ 1950 Bristol F.2b
(C821) Albatros D.V Ostend 3 2 June 1918
@ 1935 Bristol F.2b
(C821) Albatros D.V Middelkerke—Ostend Royal Air Force
Royal Australian Air Force Wing Commander No. 1 Squadron RAAF 
The Albatros D.V was a fighter aircraft built by the Albatros Flugzeugwerke and used by the Luftstreitkräfte (Imperial German Air Service) during World War I.