Technical data
Type Voisin IvanovVoisin LAS
Year 1916 1915
Crew 2 2
Engines 1*150hp Salmson
Length 9.5m 9.5m
Wingspan 14.7/12.5m 14.74/12.54m
Wing area 39.0m2 42.0m2
Empty weight 852kg 900kg
Loaded weight 1202kg 1250kg
Wing Load (kg/m2) 30.8 29.8
Power load (kg/hp) 8.0 8.3
Maximum Speed 125km/h 105km/h
Landing Speed - 70km/h
Ceiling 3500m 3000m
1000m 8.4min 11min
2000m - 23min
3000m 47min 55min
Guns 1*mg?

Voisin Ivanov, V.I.,
Piotr Ivanov, Anatra

24k picture from "History of aircraft construction in the USSR", Vol.1 p.196

Development of the French Voisin LAS pusher biplane with substantial changes. Aircraft was re-built by military pilot Piotr Ivanov in Zhmerinka, where 6th aviation supply (aviapark) division was located. New crew nacell, made of plywood, had very clean lines. Front (observer's) seat was equipped with machinegun mount of original design. Firewall (aluminum plate) was installed between engine and fuel tank. The last one was protected to prevent gasoline leak in case of a combat puncture.

Landing gear was strengthened. Third wing spar added, all spars - steel tubes. All struts (wings and tail frame) were made of elliptical steel tubes or equipped with wooden cover to make them oval.

Despite increased strength, aircraft was 20km/h faster than original Voisin LAS, powered with same engine. As a result of fight tests (since April 6, 1919) Voisin-Ivanov replaced original French aircraft on production lines (mostly on Anatra factories), and more than 150 were built in 1916- 1917.

Aircraft was in service until 1922.

  • "History of aircraft construction in the USSR", Vol.1 p.196-197;

  • More links...
  • Anatra V.I. (Estonian)
  • VI, Anatra

  • Modified September 11, 1996 Back to
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