Anadwa, Anatra VKh, Khioni-4, V.N.Khioni

Picture (28k) from "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.1 p.195. See also 16k 3-view drawing from same source, used to make a background;

T
he VKh used two Anatra D fuselages, joined by a new wing (still using elements of the Anade wing). Left fuselage was occupied by pilot, the right one - observer. Gunner was located in nacell attached to the center of the upper wing, providing excellent defence. Later crew was increased to 6.
Flight tests started July 9, 1916 with pair of 100hp Gnome-Monosoupape engines. Aircraft was rebuilt - fuselages replaced by those from Anasal, engines by 140hp Salmson's. It was concluded that aircraft may be used as a light bomber, and 50 were ordered to compensate supply shortages of the 'Ilya Mouromets'. Order was signed November 3, 1917 - and obviously was not accomplished.
Summer 1917 - tested on floats, but crushed on August 11.
Technical experts called Khioni-4 "one of the best large aircraft in possession of Russian aviation".
Few built, some after the October Revolution under Bolshevik order.
One of VKh, built in 1917, was restored with 160hp Salmson engines and flown in 1921 by V.N.Khioni himself from Odessa to Moscow for evaluation flights. Tests were quite successful, but aircraft did not get into production - may be due to its weird design.
References:
  • "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.1 p.194-196;
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  • Anatra VKh (Estonian)
  • Anadwa, Anatra
  • VKh, Anatra
  • Technical data
    Type Anadwa VKh Anadwa Salmson Khioni-4
    Function light bomber
    Year 1916 1917 1921
    Crew 3 6 ?
    Engines 2*100hp Monosaupape 2*140hp Salmson 2*160hp Salmson
    Length 7.7m 8.1m 8.1m
    Wingspan 19.0m 19.1m 19.1m
    Wing area 62.0m2 62.0m2 62.0m2
    Empty weight - 1280kg 1300kg
    Loaded weight - 1930kg 2100kg
    Wing load - 31.2kg/m2 34.0kg/m2
    Power load - 6.9kg/hp 6.5kg/hp
    Maximum Speed - 140km/h 140km/h
    Ceiling - 4000m 4400m
    Climb
    1000m - 7.6min 7.7min
    2000m - - 19min
    3000m - 34min 34.5min
    Endurance 3.0h -
    Payload
    Total 600kg 650kg 800kg
    Modified January 25, 1996
    by Alexandre Savine;
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