PZL Bielsko SZD-22
| PZL Bielsko SZD-22 | |
|---|---|
 SZD-22C Mucha standard |
|
| Type: | Glider |
| Design country: | |
| Manufacturer: | |
| First flight: |
February 10, 1958 |
| Commissioning: |
1958 |
| Production time: |
1958–1962 |
| Number of pieces: |
|
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The PZL Bielsko SZD-22 Mucha Standard is a Polish Glider the standard class . SZD stands for Szybowcowy Zakład Doświadczalny (Glider Development Plant ).
Development and history
The SZD-22 Mucha ( German fly ) was designed as the successor to the IS-2 Mucha and SZD-12 Mucha 100 for the gliding championships of 1958. W. Nowakowski, R. Grzywacz and R. Zatwardzicki were responsible for the construction. Adam Zientka made the first flight of the prototype with the registration number SP – 1748 on February 10, 1958. A second prototype ( SP-1749 ) followed with some changes to the fuselage and wings. It was flown in on June 6, 1958, also by Zientka. With this aircraft Adam Witek was able to win the first Polish world championship title in the standard class in Leszno in 1958 . On its basis, a small series of eight aircraft designated as SZD-22A, seven of which were exported, was produced. The first serial Mucha flew on October 2, 1959 with S. Szydlewski and the registration SP – 2102 .
The next version was the SZD-22B. It was equipped with a water ballast system, which consisted of two rubber containers that could be pushed into the leading edges of the wing. The first flight took place with Zientek at the wheel on February 16, 1960 (registration number SP – 2107 ). Then a series of 40 pieces was launched. This was followed by the SZD-22C with wings only covered with plywood up to the main spar and covered with fabric behind, and the SZD-22D with the main wheel moved to the front and a modified skid.
The last version was named SZD-22E. Its main feature was the wing with a modified twist of –4.5 ° between the eleventh and 25th rib. Only one copy was built, which first flew on January 9, 1961. A total of 286 series aircraft had been built by the time production was discontinued in 1962, 116 of which were exported.
technical structure
The Mucha Standard is a full-wood half-shell construction shoulder wing. The hull has an oval cross-section and is planked with 1.5 to 2.0 mm plywood. The self-supporting wings are equipped with a main spar and an auxiliary transverse spar and have extendable wooden Schempp-Hirth air brakes on the top and bottom . The paneling consists of 1.0 to 1.5 mm plywood in the front area, the area behind the main spar is covered with fabric. The cantilevered normal tail is like the structure clad in mixed wood / fabric construction. The landing gear consists of the non-retractable, unsprung and brakable main wheel (300 × 125 mm) ‹, a wooden skid at the bow and a rear runner.
User states
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Argentina
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Australia
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Belgium
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Denmark
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Germany
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Finland
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Greece
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Italy
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Yugoslavia
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Mexico
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Norway
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Austria
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Poland
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Portugal
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Sweden
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Switzerland
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Tunisia
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Turkey
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Hungary
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United Kingdom
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United States
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Technical specifications
| Parameter | Data (SZD-22C) |
|---|---|
| span | 14.98 m |
| length | 7.00 m |
| height | 1.64 m |
| Wing area | 12.75 m² |
| Wing extension | 17.60 |
| Wing loading | maximum 25.00 kg / m² |
| Empty mass | 236 kg |
| Payload | 90 kg |
| Takeoff mass | 326 kg |
| Top speed | 250 km / h |
| Minimum speed | 59 km / h |
| Glide ratio | 27.8 at 75 km / h |
| Slightest sinking | 0.73 m / s at 71 km / h |
| profile | Gö 549 (wing root) M-12 (wing tip) |
| crew | 1 |
literature
- Kazimierz Wojciech Chudzinski: Polish gliders . Volume 1: 1945-1970. Verlag für Technik und Handwerk, Baden-Baden 2014, ISBN 978-3-88180-454-7 .
- Wilfried Copenhagen : The great aircraft type book . 2nd Edition. Transpress, Berlin 1982 (VLN: 162-925 / 173/82).
- Heinz A. F. Schmidt: Airplanes from all over the world. Volume II . 2nd revised edition. Transpress, Berlin, p. 107 .
Web links
- SZD-22 Mucha standard. Retrieved October 7, 2016 (development history and photos).