It enabled Royal Flying Corps (RFC) pilots to counter the "Fokker Scourge" that had given the Germans the advantage during late 1915.
[2] As no means of firing forward through the propeller of a tractor aeroplane was yet available to the British, Geoffrey de Havilland designed the DH.2 as a scaled-down, single-seat development of the earlier two-seat DH.1.
Aviation author J.M Bruce speculated that, had adequate synchronisation gear been available, de Havilland may have been less likely to pursue a pusher configuration.
[4] Following the completion of its manufacturing trials, on 26 July 1915, the prototype was dispatched to France for operational evaluation,[3] but was lost over the Western Front and was captured by the Germans.
[6] The production aircraft was generally similar to the prototype with the only major alterations being a fuel system and a revised gun mounting arrangement.
Deliveries of the DH.2 commenced during the latter half of 1915 and a handful of aircraft were reportedly operating in France prior to the year's end.
Once pilots learned that the best method of achieving a victory was to aim the aircraft rather than the gun, it was fixed to fire forward, although this was met with skepticism by higher authorities until a quick-release clip was devised at the Squadron level.
[10] The clip was devised by Major Lanoe Hawker, who also improved the gunsights and added a ring sight and an "aiming off model" that helped the gunner allow for leading a target.
[12][13] Some sources state that the Monosoupape was retained in the DH.2 design despite a tendency to shed cylinders midair and a single DH.2 was fitted experimentally with a Le Rhône 9J.
[15][18] Service training for pilots in the RFC was poor, and the DH.2 initially had a high accident rate, supposedly gaining the nickname "The Spinning Incinerator",[19][20] but as familiarity with the type improved, it was recognised as being maneuverable and relatively easy to fly.
[17] The arrival at the front of more powerful German tractor biplane fighters such as the Halberstadt D.II and the Albatros D.I, in late 1916, meant that the DH.2 was outclassed in turn.
32 Squadron, Lionel Rees was awarded the Victoria Cross after flying the D.H.2 for a solo attack on a formation of ten German two-seaters on 1 July 1916, destroying two.
Eight pilots scored all of their victories in the DH-2, including Harry Wood, Sidney Cowan, Hubert Jones, William Curphey, Maxmillian Mare-Montembault, Patrick Anthony Langan-Byrne, Eric Pashley and Selden Long.
Data from Warplanes of the First World War - Fighters Volume One,[29]General characteristics Performance Armament Related development Aircraft of comparable role, configuration, and era