Nieuport 24The Nieuport 24 (or Nieuport XXIV C.1 in contemporary sources) was a World War I French sesquiplane fighter aircraft designed by Gustave Delage as a development of the successful Nieuport 17. The Nieuport 24 had the misfortune to be the penultimate design suited to tactics that were being superseded when it entered service. Its small size, relatively light weight and small engine gave it a significant manoeuvrability advantage in a dog fight. However, larger and heavier fighters that relied almost entirely on speed such as the SPAD VII and Albatros D.
Nieuport 27The Nieuport 27 (or Nieuport XXVII C.1 in contemporary sources) was a World War I French sesquiplane fighter aircraft designed by Gustave Delage. The 27 was the last of the line of Nieuport "V-strut" single seat fighters that began with the Nieuport 10 of 1914. Operational examples supplemented the very similar Nieuport 24 and 24bis in operational squadrons in late 1917 and many would also be used as advanced trainers. The Nieuport 27's design closely followed that of the 24, sharing the same faired fuselage, rounded ailerons and half-heart shaped rudder.
Synchronization gearA synchronization gear (also known as a gun synchronizer or interrupter gear) was a device enabling a single-engine tractor configuration aircraft to fire its forward-firing armament through the arc of its spinning propeller without bullets striking the blades. This allowed the aircraft, rather than the gun, to be aimed at the target. There were many practical problems, mostly arising from the inherently imprecise nature of an automatic gun's firing, the great (and varying) velocity of the blades of a spinning propeller, and the very high speed at which any gear synchronizing the two had to operate.
Nieuport 17The Nieuport 17 C.1 (or Nieuport XVII C.1 in contemporary sources) was a French sesquiplane fighter designed and manufactured by the Nieuport company during World War I. An improvement over the Nieuport 11, it was a little larger than earlier Nieuports and better adapted to the more powerful engine than the interim Nieuport 16. Aside from early examples, it had the new Alkan-Hamy synchronization gear, permitting the use of a fuselage-mounted synchronised Vickers gun firing through the propeller disc.
