Sikorsky S-3: Difference between revisions
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==Design and development== |
==Design and development== |
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The S-2 was a larger improved version of the [[Sikorsky S-2|S-2]] with a more powerful {{convert|40|hp|kW|0|abbr=on}} [[Anzani]] three-cylinder, air-cooled engine. The main wings were manufactured in a more uniform manner with the [[Rib (aeronautics)|ribs]] held to a higher tolerance. |
The S-2 was a larger improved version of the [[Sikorsky S-2|S-2]] with a more powerful {{convert|40|hp|kW|0|abbr=on}} [[Anzani]] three-cylinder, air-cooled engine. The main wings were manufactured in a more uniform manner with the [[Rib (aeronautics)|ribs]] held to a higher tolerance and the fabric covering was of better quality. Other refinements included larger [[ailerons]] and tighter control cables.<ref name=winged>{{cite book |last=Sikorsky |first=Igor|first2=|last2=|title=The Story of the Winged-S|year=1944|publisher=Dodd, Mead & Company|location=New York|isbn=9781258163556|page=39}}</ref> |
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==Operational history== |
==Operational history== |
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Revision as of 12:27, 4 April 2017
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| S-3 | |
|---|---|
| |
| Sikorsky S-3 near Kiev Russia December 1910 | |
| Role | Experimental |
| National origin | Russian |
| First flight | December 1910 |
| Number built | 1 |
| Developed from | Sikorsky S-2 |
The Sikorsky S-3 was an early Russian single seat biplane design by Igor Sikorsky. Work on the machine started in July 1910 and was completed in late November.
Design and development
The S-2 was a larger improved version of the S-2 with a more powerful 40 hp (30 kW) Anzani three-cylinder, air-cooled engine. The main wings were manufactured in a more uniform manner with the ribs held to a higher tolerance and the fabric covering was of better quality. Other refinements included larger ailerons and tighter control cables.[1]
Operational history
The S-3 exhibited performance superior to the S-2 and Sikorsky made a dozen successful flights starting early in December. The S-3 made its last flight on December 13, 1910 when at an altitude of 90 feet the engines distributor shifted to a retarded position and lost power. The aircraft landed hard on a frozen pond, then broke though the ice and sank causing serious damage. The S-3 was salvaged and some parts including the engine were used in the construction of the S-4.[1]
Specifications
Data from Russian Aviation Museum[2]
General characteristics
- Crew: One
- Length: 26 ft 3 in (8 m)
- Upper wingspan: 26 ft 3 in (8 m)
- Wing area: 260 sq ft (24 m2)
- Empty weight: 485 lb (220 kg)
- Gross weight: 683 lb (310 kg)
- Powerplant: 1 × Anzani 3 -cyl. air-cooled fan piston engine, 40 hp (30 kW)
Performance
- Service ceiling: 98 ft (30 m)
References
- ^ a b Sikorsky, Igor (1944). The Story of the Winged-S. New York: Dodd, Mead & Company. p. 39. ISBN 9781258163556.
- ^ "BIS No.1". ram-home.com. 4 September 1997. Retrieved 2 April 2017.