Starting the war with only 35 aircraft, Austro-Hungarian industry went on to produce only moderate numbers of poor quality aircraft. The fliers of the Austro-Hungarian Empire operating on the Serbian and Russian fronts were fortunate at first, finding themselves faced by small numbers of aircraft yet more obsolescent than their own. Serbia fell in 1915, but when Italy declared war the Austro-Hungarians were still faced with a two-front war a static front against Italy, and a far more fluid one against Russia. Austro-Hungarian fighter pilots performed bravely and often very effectively under...

At the outset of World War I the British had some 110 assorted aircraft, used mostly for the visual reconnaissance role. With the advent of faster and more agile single-seaters, the Allies and their adversaries raced to outdo each other in the creation of genuinely effective fighters with fixed forward-firing machine gun armament. It was not until 1917 that the British developed a truly effective interrupter gear, which paved the way for excellent single seaters such as the Sopwith Triplane Camel and the RAF S.E.5., later joined by the Bristol F.2B - the war's best two-seat fighter. This...