S-20, I.I.Sikorsky

robably the best domestic WWI fighter design in Russia. It was faster than any contemporary fighter except 'Vickers'.
Five built in September 1916, and were not noticed by military command...
Float plane version (1917) was not finished.
  • "History of aircraft construction in the USSR" by V.B.Shavrov, Vol.1 p.177;
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  • S-XX, RBV
  • Technical data
    Type S-18
    Function Interceptor ???
    Year 1916
    Crew 1
    Engines 1*100hp Gnome-Monosaupape, later 1*120hp Le Rhone
    Length ~6.5m
    Wingspan ~8.2m
    Wing area 17.0m2
    Empty weight 395kg
    Loaded weight 570kg
    Wing load 33.5kg/m2
    Power load 4.7kg/hp
    Speed at 0m 190km/h
    Ceiling ~7000m
    Guns 1*mg
    Modified September 8, 1997
    by Alexandre Savine;
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