Royal Aircraft Factory B.E.12

Unknown, probably either a service member of the RFC or an employee of the Royal Aircraft Factory. - Published in : Cheesman, E.F. Fighter Aircraft of the 1914-1918 War, Harleyford, 1960 - and several times before and since that date.
The Royal Aircraft Factory B.E.12 was a British single-seat aeroplane of The First World War designed at the Royal Aircraft Factory. It was essentially a single-seat version of the B.E.2.
Intended for use as a long-range reconnaissance and bombing aircraft, the B.E.12 was pressed into service as a fighter, in which role it proved disastrously inadequate, mainly due to its very poor manoeuvrability. Wikipedia
Wikipedia Royal Aircraft Factory B.E.12