Silesia S-3
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| Silesia S-3 | |
|---|---|
 | |
| General information | |
| Type | Single seat light aircraft |
| National origin | Poland |
| Manufacturer | Pierwsza Śląska Fabryka Samolotów |
| Designer | Sopora brothers |
| Number built | 1 |
| History | |
| First flight | Early November 1923 |
The Silesia S-3 was the first design from the Polish Sopora brothers to fly. It was a low power, single seat, high wing light aircraft. Only one was built and its flying time was limited.
Three brothers, Edward, Paul and Wojciech Sopora set up an aircraft-building workshop in 1923 at Chorzów, calling it the Pierwsza Śląska Fabryka Samolotów (First Silesian Aircraft Factory). Their first product was a light, low-powered, high wing monoplane, the Silesia S-3.[1]
Its wood-framed, thin section wing was in two parts joined to the upper fuselage longerons and was fabric covered. It was entirely wire-braced from a high, central cabane above the fuselage and a short cabane from its underside.[1]
The C-3 was powered by a 22 kW (30 hp) Haacke HFM-2, a flat-twin mounted with its cylinders projecting outside the fuselage for cooling. Behind the engine the fuselage was flat-sided, with a steel-tube frame of rectangular section and fabric covering. The single, open cockpit was behind the upper cabane. Its empennage was wood-framed and fabric covered; the tailplane, on top of the fuselage, was wire braced to the top of a rounded fin. The rudder was also rounded in profile.[1]
Its fixed landing gear was of the tailskid type. The mainwheels were on a single axle which was mounted on two transverse tubes joining the apexes of two V-struts from the lower fuselage longerons.[1]