Fokker M.5

The Fokker M.5 was Anthony Fokker's first commercially important aircraft — a German-built single-engine, single-seat shoulder-wing monoplane developed in 1913 and produced from 1913 to 1915. Its historical weight comes from what followed: the M.5 was the direct ancestor of the Fokker E.I / E.II / E.III Eindecker, the first synchronised-machine-gun fighters in frontline service and the platform that triggered the 1915-1916 "Fokker Scourge" period of German aerial supremacy on the Western Front. The M.5 itself was a peacetime sport-aviation and military observation design, drawing heavily on the French Morane-Saulnier H that Fokker had observed at French air meetings in 1913. Critics — including the French firm — called the M.5 a copy; Fokker's lawyers argued the design changes made it independent. Around 80 M.5 airframes were built in M.5K (short-wing) and M.5L (long-wing) variants before wartime production transitioned the design to the E-series fighters.

The M.5L measured 6.7 m long with a 9.5 m wingspan. Empty weight was around 295 kg, MTOW around 580 kg. Power came from a single Oberursel U.0 (later U.I) rotary of 80 hp, rising to 100 hp in late variants. Maximum speed reached 130 km/h (81 mph), service ceiling 3,000 m, endurance roughly two hours. Distinctive features included a shoulder-mounted wing — unusual for 1913, when most monoplanes used parasol or low wings — a cantilever-style wing with bracing wires, fabric-covered welded steel-tube fuselage (a 1913 innovation that became Fokker's signature construction method), and a wire-braced empennage. Performance was modest by any measure, typical of a 1913-1914 sport monoplane. What changed everything was Fokker's later transition of the same airframe into a synchronised-fighter platform.

That operational legacy is the Fokker E-series Eindecker. In April 1915, Fokker engineers took French aviator Roland Garros's improvised propeller-deflector concept, refined it with a synchronisation gearing developed by Heinrich Lübbe, and installed a forward-firing 7.92 mm Spandau LMG 08 machine gun firing through the propeller arc on a converted M.5K airframe. The result was the Fokker E.I — the first practical synchronised-machine-gun fighter. Across the E.I, E.II, and E.III variants, the Eindecker dominated the Western Front from August 1915 to mid-1916 against unarmed or pusher-configuration Allied types: the F.E.2, B.E.2, Voisin III, and Maurice Farman MF.7. British pilots called the period the "Fokker Scourge". Max Immelmann and Oswald Boelcke built their early reputations on Eindeckers and worked out the founding principles of fighter tactics on the type. The Scourge ended in mid-1916 with the arrival of synchronised-armed Allied biplanes — the Sopwith 1½ Strutter, F.E.2 with Lewis gun, and the DH.2 pusher — but the M.5's role as the platform that introduced synchronised aerial gunnery to frontline combat ranks it among the most consequential aircraft designs of WWI.