| Technical data | ||
|---|---|---|
| Type | Voisin Ivanov | Voisin 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 |
| Climb | ||
| 1000m | 8.4min | 11min |
| 2000m | - | 23min |
| 3000m | 47min | 55min |
| Armament | ||
| Guns | 1*mg | ? |
Voisin Ivanov, V.I.,
Piotr Ivanov, Anatra
 |
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.
References:
More links...
