Sikorsky S-5

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Role Prototype
Designer Igor Sikorsky
First flight April 1911
Number built 1

The Sikorsky S-5 was an early design by Igor Sikorsky, completed in late April 1911, with a 50 hp (37 kW) Argus water-cooled engine. The S-5 was tested in a series of 20 to 30-second straight-line flights, over a period of three weeks, before the designer was able to make what he called his first real flight of four minutes, in a circuit of the field, on 17 May 1911.

After outperforming Russian Army aircraft during manoeuvres watched by Czar Nicholas II, the S-5 earned Igor Sikorsky his first income with a series of exhibition flights during a country fair at Belaya Tzerkov, near Kiev. Between nine and ten flying hours were logged before the S-5 was lost through an engine failure.


Data from The Osprey Encyclopaedia of Russian Aircraft 1875–1995[1]

General characteristics

  • Crew: 1
  • Capacity: 1 passenger
  • Length: 8.5 m (27 ft 11 in)
  • Wingspan: 12 m (39 ft 4 in)
  • Gross weight: 440 kg (970 lb)
  • Powerplant: 1 × Argus 1908 4-cylinder 4-cyl. inline water-cooled piston engine, 37 kW (50 hp)


  • Maximum speed: 125 km/h (78 mph; 67 kn)
  • Range: 85 km (53 mi; 46 nmi)
  • Service ceiling: 500 m (1,640 ft)


  1. Gunston, Bill (1995). The Osprey Encyclopaedia of Russian Aircraft 1875–1995 (1st ed.). London: Osprey Publishing. p. 12. ISBN 978-1-85532-405-3.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>