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The Sikorsky S-4 was a Russian aircraft built by Igor Sikorsky using many components of the S-3 including the 40 hp (30 kW) Anzani three-cylinder engine. Construction of the biplane began in late December 1910 and was completed early in the spring of 1911. The machine appeared in a static display at an aeronautical exhibition at Kharkov in the spring of 1911, but was never flown. Some time afterward it was disassembled.[1]

S-4
S-4 displayed at an exhibition in Kharkov in the spring of 1911
Role Experimental
National origin Russian Empire
Designer Igor Sikorsky
Introduction 1911
Number built 1
Developed from Sikorsky S-3

Specifications


Data from Russian Aviation Museum[2]

General characteristics

Performance


References


  1. Sikorsky, Igor (1944). The Story of the Winged-S. New York: Dodd, Mead & Company. p. 43. ISBN 9781258163556.
  2. "S-4". ram-home.com. 4 September 1997. Retrieved 4 April 2017.



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