PZL Bielsko SZD-24
| PZL Bielsko SZD-24 Foka | |
|---|---|
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| Type: | Performance glider |
| Design country: | |
| Manufacturer: | |
| First flight: |
May 2, 1960 |
| Commissioning: |
1961 |
| Production time: |
1960-1968 |
| Number of pieces: |
204 |
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The PZL Bielsko SZD-24 Foka ( German seal ) is a polish performance glider the default class . SZD stands for Szybowcowy Zakład Doświadczalny (Glider Development Plant ).
history
The Foka was developed by Władysław Okarmus as a performance glider for the standard class. The improved SZD-24-4 Foka 4 was created in 1962. At the 1965 World Gliding Championships in Great Britain, the only 24-year-old Jan Wróblewski managed to win the world championship title in the open class with a Foka 4 . This was the first and so far only time that this was achieved with a standard class aircraft. Seven world records were flown with the Foka 4. The aircraft received the OSTIV Prize . 137 of the 204 sailors built were exported, including 30 Foka 4s to the GDR . The successor was the SZD-32 Foka 5 .
The Foka is still used today in glider clubs.
construction
The Foka is designed as an all-wood shell construction. The wing has a laminar profile. The tail unit is of normal construction. The canopy is pushed forward to open. The cockpit is narrow and requires slim pilots.
Technical specifications
| Parameter | Data (SZD-24C Foka ) |
|---|---|
| crew | 1 |
| length | 7.00 m |
| span | 14.98 m |
| height | 1.40 m |
| Wing area | 12.16 m² |
| Wing extension | 18.50 |
| V position | 2 ° |
| Wing loading | 26.50 kg / m² |
| Wing profile | NACA-632-618 (NACA-4415 in the QR area) |
| Glide ratio | 34 at 86 km / h |
| Slightest sinking | 0.66 m / s at 75 km / h |
| Empty mass | 237 kg |
| payload | 85 kg |
| Max. Takeoff mass | 322 kg |
| Minimum speed | 62 km / h |
| Top speed | 250 km / h |
See also
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).
- Hartmut Buch: Gliding . Transpress, Berlin 1980, p. 218 (VLN: 162-925 / 155/80-P110 / 80).
- Heinz AF Schmidt: Airplanes from all over the world . 3rd revised edition. Transpress, Berlin 1970, p. 133 .
Web links
Individual evidence
- ↑ Fliegerkalender der DDR 1974, p. 47, Military Publishing House of the GDR, Berlin 1973
- ^ Detlef Billig, Manfred Meyer: Airplanes of the GDR. Volume I until 1962. TOM Modellbau, Friedland 2002, ISBN 3-613-02198-6 , p. 28