| PZL S-1 | |
|---|---|
 | |
| Role | Trainer and liaison aircraft |
| Manufacturer | PZL-Mielec |
| First flight | 15 November 1945 |
| Retired | 1946 |
| Status | prototype |
| Primary user | Polish Air Force |
| Number built | 1 |
The PZL S-1 was a Polish trainer and liaison aircraft of 1945, which remained a prototype. It was the second aircraft built in Poland after World War II.
The aircraft was designed by engineer Eugeniusz Stankiewicz, being a teacher in the Aviation School in Zamość. Works started in late 1944, soon after the liberation of eastern Poland, when central and western parts were still occupied by the [[Germany|Germans]. The design of a trainer and liaison plane was approved by the Polish military Aviation Command, and Stankiewicz completed documentation in an aircraft factory PZL-Mielec in Mielec (the factory was destroyed by the Germans and at that time existed as repair works only).
There, a prototype was built, utilizing parts of the Soviet Polikarpov Po-2, like an engine with a propeller, wheels and seats, also a construction of a fuselage was similar to the Po-2. The plane, named S-1 (for Stankiewicz), was very simple. It was flown on 15 November 1945, by the Soviet pilot Piotr Kondratyenko. It was the second Polish-designed plane, that flew after the war (the first was LWD Szpak). Further aircraft were not produced.
The prototype crashed on 14 May 1946 in Warsaw in a bad weather, however its pilot, who was Stankiewicz himself, survived. [1]
Wooden construction braced high-wing (parasol wing) monoplane, conventional in layout. Fuselage built of a frame, plywood and canvas covered. Rectangular wing with rounded tips, two-spar. Crew of two, sitting in tandem, in open cockpits with windshields. Fixed conventional landing gear, with a rear skid. Radial engine M-11D in front, with a Townend ring, two-blade wooden propeller (2.4 m diameter). Fuel tanks 126 L.
Poland Data from PZL S-X konstrukcje E. Stankiewicza oznaczone symbolem "S" : PZL S-1 [2]
General characteristics
Performance
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