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Страна: Франция

Год: 1919

Летающая лодка

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

Liore et Olivier 5 S2

  The need for a heavily armored ground-attack aircraft was formulated as early as May 1918 by the Aviation Militaire. A requirement for a two-seat type was formulated under the S2 classification. Aircraft submitted to meet this specification were the Canton S2, the Liore-et-Olivier 5 S2, and the Hochart S2. The LeO 5 was a twin-engine biplane powered by two 175-hp Gnome Rhone rotary engines; it was felt that the rotary engines would be less susceptible to small arms fire. The engines were mounted in nacelles suspended between the upper and lower wings by a series of struts. The fuselage featured a short nose that did not extend beyond the propeller spinners. A large fin with rudder and a prominent tail skid were other features. The stabilizer had variable incidence. The two main wheels featured spats and were located under each of the engines. These spats would have helped protect the tires from damage due to ground fire. The crew of two was seated in tandem - the pilot beneath a cut out in the trailing edge of the upper wing and the gunner just behind him. Armament consisted of one machine gun in the nose and two others on a swivel mount. There was a total of 300 kg of armor.
  Only one aircraft was built, but because the S2 specifications was not issued until late in the war it did not fly until 1919. When the STAe evaluated the type, it was fell to be more suitable for the Ab2 classification requiring a maneuverable aircraft with light armor for reconnaissance and army cooperation duties. It was developed into the LeO 7, which saw service postwar.


LeO 5 Two-Seat Armored Ground-Attack Plane with Two 175-hp Gnome Rhone Engines
   Span was 14.35 in; length 8,30 m; height 47.25 in
   Empty weight 1,300 kg; loaded weight 1,900 kg (with 160 kg of bombs)
   Maximum speed: 185 km/h; climb Io 1,000 m in 4 minutes, range 550 km
   Armament: three machine guns
   One built



Liore et Olivier S2 Project

  The LeO 5 had been intended to meet the S2 category of 1918. However, it was subsequently felt to be more suitable for the Ab 2 category of reconnaissance aircraft carrying light armor. The Liore et Olivier firm subsequently designed a new plane for the S2 category - a pusher fitted with two 170-hp Renault engines. It appears that it was never built and remained a project only.

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