SZD-22 Mucha Standard

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

Development

Developed especially for the 1958 World Gliding Championships, the SZD-22 Mucha Standard was a direct descendent 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 (155 mph; 135 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)

Notes

↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Pietchowski, Piotr. "SZD-22 Mucha Standard" (in Polish). www.piotrp.de. Retrieved 8 April 2013.
↑ 2.0 2.1 2.2 Babiejczuk, Janusz; Grzegorzewski, Jerzy (1974). (Polish) Polski przemysł lotniczy 1945-1973 (Polish aerospace industry 1945-197). Warsaw: Wydawnictwo MON. pp. 123–124. Cite uses deprecated parameters (help)
↑ Shenstone, B.S.; K.G. Wilkinson (1963). The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II (in Primarily English with French and German) (1st ed.). Zurich: Organisation Scientifique et Technique Internationale du Vol a Voile (OSTIV) and Schweizer Aero-Revue. pp. 34–36. Cite uses deprecated parameters (help)

References

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

External links

Wikimedia Commons has media related to SZD-22 Mucha Standard.

v t e Polish post-1945 gliders

Instytut Szybownictwa	IS-1 IS-2 IS-3 IS-4 IS-5 IS-A IS-B IS-C

Szybowcowy Zakład Doświadczalny / PZL Bielsko-Biała / Allstar PZL Glider	SZD-C SZD-6 SZD-7 SZD-8 SZD-9 SZD-10 SZD-11 SZD-12 SZD-13 SZD-14 SZD-15 SZD-16 SZD-17 SZD-18 SZD-19 SZD-20 SZD-21 SZD-22 SZD-23 SZD-24 SZD-25 SZD-26 SZD-27 SZD-28 SZD-29 SZD-30 SZD-31 SZD-32 SZD-33 SZD-34 SZD-35 SZD-36 SZD-37 SZD-38 SZD-39 SZD-40 SZD-41 SZD-42 SZD-43 SZD-45 SZD-48 SZD-49 SZD-50 SZD-51 SZD-52 SZD-54 SZD-55 SZD-56 SZD-59

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