Nieuport 11
The Nieuport 11 (or Nieuport XI C.1 ), nicknamed the Bébé, was a French World War I single seat sesquiplane fighter aircraft, designed by Gustave Delage.
The Nieuport 11 was a smaller, simplified version of the Nieuport 10, designed specifically as a single-seat fighter. Like the "10" the "11" was a sesquiplane, a biplane with a full-sized top wing with two spars, and a lower wing of much narrower chord and a single spar.The sesquiplane layout reduced drag and improved the rate of climb, as well as offering a better view from the cockpit while being substantially stronger than contemporary monoplanes.A drawback was, the narrow lower wing was sometimes subject to aeroelastic flutter at high air speeds, a problem that affected the later "vee-strut" Nieuport fighters.
The Nieuport 11 reached the French front in January 1916, and 90 were in service within the month.It outclassed the Fokker Eindecker in every respect, including speed, climb rate and manoeuvrability. It featured ailerons for lateral control rather than the Fokker's wing warping, giving lighter, quicker roll response, and its elevator was attached to a conventional tail plane which provided better pitch control as opposed to the all-moving, balanced "Morane type" elevators of the Fokker.
During the course of the Battle of Verdun in February 1916, the combination of the Nieuport 11s technical advantages and its concentration in dedicated fighter units allowed the French to establish air superiority, forcing radical changes in German tactics.
Some Nieuport 11s and 16s were fitted to fire Le Prieur rockets from the struts for attacks on observation balloons and airships.
By March 1916 the Bébé was being replaced by both the Nieuport 16 and the much improved Nieuport 17, although Italian-built examples remained in first line service longer, as did Russian examples.
Thereafter the Nieuport 11s continued to be used as trainers.
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