Voisin Triplane

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Voisin - O - 1915 - Франция Voisin - 7 - 1916 - Франция

Voisin Triplane

Страна: Франция

Год: 1915

Единственный экземпляр

Варианты

Voisin - Triplane - 1915 - Франция
Voisin - E.28 - 1919 - Франция

J.Davilla, A.Soltan French Aircraft of the First World War (Flying Machines)

Voisin Triplane 1915

  In response to a government requirement for a heavy bomber capable of attacking the German industrial center of Essen, Voisin's team labored day and night for five weeks to produce a monstrous triplane. Testing of the aircraft began in 1915 with Joseph Frantz as test pilot. It was powered by four 270-hp Salmson radial engines mounted back to back in nacelles on the center wing. The fuselage had a partially enclosed cabin for the pilots. A huge rectangular beam extended from just aft of the cockpit through the front of the center and top wings. This structure contained the radiators for all four engines. A second triangular beam connected the top wing with the rudder. The landing gear consisted of three wheels in tandem below the lower wing. A massive nosewheel was semi-recessed in the nose in order to prevent the aircraft from rolling over on landing. The three wings were supported by a complex series of struts. Ailerons were located on the center and top wings and were controlled by two concentric wheels inside the cabin. The outer wheel controlled the ailerons on the top wing; the inner wheel controlled the ailerons on the center wing. The latter were used only to compensate for asymmetric flight as a result of engine failure.
  The aircraft, named the J. Benoist - L. Mijduant, was the first four-engine aircraft to fly in France. It was presented to the army on 15 August, 1915. The military authorities saw the aircraft not as a heavy bomber capable of smashing Essen, but as a slow-moving behemoth that would present an easy target for anti-aircraft artillery. After examining the other entrants in the 1915 concours, the pilots and organizers agreed to another competition.
  The efforts of the Voisin team had been wasted and the triplane was dismantled. However, Voisin did not yet abandon the triplane layout and used the wings from the 1915 bomber to produce his next heavy bomber, the 1916 E.28.

Voisin 1915 Triplane Bomber Powered by Four 270-hp Salmsons
   Span 38 m; length 23.80 m; height 5.42 m; wing area 200 sq. m
   Empty weight 4,500 kilograms; loaded weight 6,500 kilograms
   Maximum speed: 140 km/h at 2,000 m; climb to 2,000 m in 20 min.; range 420 km; endurance 3 hours
   One built

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Журнал Flight

Flight, November 20, 1919.

THE VOISIN EXPERIMENTAL BOMBING TRIPLANE

   THE accompanying illustrations show an interesting French experimental bombing triplane constructed by the Voisin Co. The first model, which is shown in the sketch, was produced during the latter part of 1915, and was fitted with four engines of 150 h.p. each. As this first machine did not come up to expectations on its trials, another machine was constructed in 1916, similar in general design, but embodying many modifications.
   This machine is shown in our other illustrations, from which it will be seen that it possesses many distinctive characteristics. The most notable feature consists of the two fuselages, which, unlike those of other twin fuselage machines, such as the Caproni, are arranged one above the other, and not side by side. In both models the lower fuselage forms the main body, the upper fuselage being of much lighter construction and serving as an outrigger for the tail. There is also a cockpit in the fore part of the upper fuselage, where a gunner is stationed, from which position a very good range of fire is obtained. In conjunction with the gunner in the nose of the lower fuselage, and the rear gunner, who fires through an opening in the underside of this fuselage, the machine is well protected against attack.
   The four Hispano-Suiza engines (220 h.p. each) are mounted in pairs in tandem, just below the middle plane in the 1916 model, on tubular V frames, extending from top to bottom planes. The engine mounting is additionally braced by diagonal struts from both upper and lower fuselages.
   The overall span of the 1916 model is 118 ft., and the chord is 6 ft. 6 ins. The total surface is 2,150 sq. ft., and the loading is 7.1 lbs. per sq. ft. or 18 lbs. per h.p. The weight of the machine empty is 11,000 lbs., and the useful load is 4,400 lbs., of which half is accounted for by fuel, oil and crew. The speed at 6,500 ft. is 79 m.p.h., and the climb is 27 mins. for the 6,500 ft. The theoretical ceiling of this machine is 11,500 ft.

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Описание:Description:

J.Davilla, A.Soltan French Aircraft of the First World War (Flying Machines)
Журнал Flight

J.Davilla, A.Soltan - French Aircraft of the First World War /Flying Machines/

Voisin 1915 Triplane at Issy-les-Moulineaux. It was christened the J. Benoist - L. Mijduant.
J.Herris - Weird Wings of WWI /Centennial Perspective/ (70)

The Voisin Triplane was a 1915 design for a heavy bomber, hence the large wing area for lift. The aircraft was powered by four 270 hp Salmson radial engines mounted in tractor-pusher pairs on the center wings. Ailerons were fitted to the top and middle wings; these ailerons operated separately, with those on the middle wings used for trim. The extensive wire and strut bracing contributed to its slow speed and the prototype was scrapped, but the wings were retained for the Voisin E.28 Triplane heavy bomber of 1916.
Журнал - Flight за 1919 г.

Sketch showing the first, 1915, model of the Voisin bombing triplane.

J.Davilla, A.Soltan - French Aircraft of the First World War /Flying Machines/

Voisin 1915 Triplane Bomber

Фотографии

J.Davilla, A.Soltan - French Aircraft of the First World War /Flying Machines/

J.Herris - Weird Wings of WWI /Centennial Perspective/ (70)

Журнал - Flight за 1919 г.

J.Davilla, A.Soltan - French Aircraft of the First World War /Flying Machines/