SZD-22 Mucha Standard

The SZD-22 Mucha Standard (Szybowcowy Zakład Doświadczalny - Glider Experimental Works) was a single-seat aerobatic glider designed and built in Poland from 1957.

SZD-22 Mucha Standard
SZD-22 Mucha Standard in the Aviation Museum of Central Finland
Role Glider
National origin Poland
Manufacturer SZD
Designer W. Nowakowski, R. Grzywacz and Zatwarnicki
First flight 10 February 1958[1]
Primary user Polish Aero Club
Number built 288[1]
Developed from SZD-12 Mucha 100

Development

Developed especially for the 1958 World Gliding Championships, the SZD-22 Mucha Standard was a direct descendant of the IS-2 Mucha (Fly), from 1948, and SZD-12 Mucha 100, from 1953, with very similar lines and dimensions. The Mucha Standard was designed to the new Standard class rules which discarded the old Olympic 15-15-15 Span, Aspect Ratio, Area rule.[1]

The first flight of the SZD-22 took place at Bielsko with Adam Zientek at the controls on 10 February 1958.[2] It was followed by the second prototype in June 1958. Flight trials were successful, leading to a long production run with six variants, which introduced various modifications.

Built primarily of wood, the SZD-22 had airbrakes in the wings, a streamline cockpit canopy, short nose and tail skids with a single mainwheel. The SZD-22C model replaced the plywood covering of the wings with fabric and some models had provision for water ballast in rubber bags fitted to the wing roots.[1] Most of SZD-22s - 271, were built in ZSLS in Krosno.[2]

Many SZD-22's, mostly SZD-22C models, were exported to the Great Britain, Argentina, Austria, Australia, Belgium, Denmark, Finland, France, Greece, Yugoslavia, Mexico, Norway, West Germany, Switzerland, Sweden, Tunisia, Turkey, USA, Hungary and Italy[1] Adam Witek flew the SZD-22 Mucha Standard to first place in the Standard class at the 1958 World Gliding Championships at Leszno in Poland.[1]

Variants
  • SZD-22 Mucha Standard – The initial prototype of the SZD-22 series (reg'n no. SP-1748).
  • SZD-22A Mucha Standard – Initial production version, 8 built in Bielsko.
  • SZD-22B Mucha Standard – Provision for water ballast in rubber bags, 40 built in Krosno.
  • SZD-22C Mucha Standard – Fabric covered wings + provision for water ballast in rubber bags, main production variant.
  • SZD-22D Mucha Standard – Modified skid and mainwheel (1 built).[1]
  • SZD-22E Mucha Standard – Variant with a new wing (1 built).[2]

Specifications (SZD-22A Mucha Standard)

Data from The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II[3] SZD-22 Mucha Standard[1]

General characteristics

  • Crew: 1
  • Length: 7 m (23 ft 0 in)
  • Wingspan: 14.98 m (49 ft 2 in)
  • Height: 1.6 m (5 ft 3 in)
  • Wing area: 12.75 m2 (137.2 sq ft)
  • Aspect ratio: 17.65
  • Airfoil: Root: Göttingen 549, Tip: M 12
  • Empty weight: 219 kg (483 lb)
  • Gross weight: 350 kg (772 lb)
  • Max takeoff weight: 383 kg (844 lb) SZD-22B and SZD-22C with water ballast

Performance

  • Stall speed: 59 km/h (37 mph, 32 kn)
  • Never exceed speed: 250 km/h (160 mph, 130 kn)
  • Rough air speed max: 140 km/h (87.0 mph; 75.6 kn)
  • Aerotow speed: 150 km/h (93.2 mph; 81.0 kn)
  • g limits: +6 -3 at 144 km/h (89.5 mph; 77.8 kn)
  • Maximum glide ratio: 27.8 at 75 km/h (46.6 mph; 40.5 kn)
  • Rate of sink: 0.73 m/s (144 ft/min) at 71 km/h (44.1 mph; 38.3 kn)
  • Wing loading: 27.4 kg/m2 (5.6 lb/sq ft) (SZD-22A), 30 kg/m2 (6.144 lb/sqft) - (SZD-22B and SZD-22C with water ballast)

See also

Aircraft of comparable role, configuration, and era

Related lists

Notes
  1. Pietchowski, Piotr. "SZD-22 Mucha Standard" (in Polish). www.piotrp.de. Retrieved 8 April 2013.
  2. Babiejczuk, Janusz; Grzegorzewski, Jerzy (1974). Polski przemysł lotniczy 1945-1973 (Polish aerospace industry 1945-197) (in Polish). Warsaw: Wydawnictwo MON. pp. 123–124.
  3. Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 34–36.

References
  • Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in English, French, and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 34–36.
  • Pietchowski, Piotr. "SZD-22 Mucha Standard" (in Polish). www.piotrp.de. Retrieved 8 April 2013.
  • Babiejczuk, Janusz; Grzegorzewski, Jerzy (1974). Polski przemysł lotniczy 1945-1973 (Polish aerospace industry 1945-197) (in Polish). Warsaw: Wydawnictwo MON. pp. 124–125.

Further reading
  • Taylor, J. H. (ed) (1989) Jane's Encyclopedia of Aviation. Studio Editions: London. p. 29
  • Coates, Andrew. "Jane's World Sailplanes & Motor Gliders new edition". London, Jane's. 1980. ISBN 0-7106-0017-8


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