Sikorsky S-11
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| S-11 | |
|---|---|
Sikorsky S-11 circa 1913 | |
| General information | |
| Type | Reconnaissance |
| National origin | Russian Empire |
| Manufacturer | Russian Baltic Railroad Car Works |
| Designer | Igor Sikorsky |
| Number built | 1 |
| History | |
| First flight | 1913 |
| Developed from | S-7 |
The Sikorsky S-11 Polukroogly (Half Round) was a Russian single engine prototype reconnaissance aircraft completed in July 1913 by the Russian Baltic Railroad Car Works while Igor Sikorsky was the chief engineer of the aircraft manufacturing division.
The S-11 was a two seat mid-wing monoplane with wire-braced wings powered by a Gnome Monosoupape air-cooled rotary engine rated at 100 hp (75 kW). It was smaller and lighter than the S-9[1] on which it was based, and had a conventional wooden fuselage. The cockpit featured side-by-side seating with controls for the pilot only on the left. Originally built with ailerons controlled by steel tubes inside the wings, it was later redesigned using wing warping for roll control.[2][3]