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SZD 12 Mucha 100

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Top speed
  
220 km/h

Length
  
7 m

Wingspan
  
15 m

First flight
  
November 14, 1953


Pilatus szd 12 mucha 100


The SZD-12 Mucha 100 (Szybowcowy Zakład Doświadczalny - Glider Experimental Works) was a single-seat glider aircraft that was designed and built in Poland from 1953.

Contents

SZD-12 Mucha 100 Fotograficzny Rejestr Szybowcw SP1975 Mucha 100Szybowiec SZD

Development

SZD-12 Mucha 100 Zobacz temat Condor repozytorium skinw

The SZD-12 Mucha (Fly) 100 was derived from the IS-2 Mucha-ter for use by aero clubs throughout Poland. Two hundred and ninety were built with 73 exported to several countries and an unknown number were licence-built in the Peoples Republic of China (PRC).

SZD-12 Mucha 100 SZD12 Mucha 100 Wikipedia

Constructed from wood/plywood throughout, the Mucha 100 was much improved from the IS-2 Mucha, with smoother surfaces, better aerodynamics and comprehensive instruments and equipment including a KF-18 oxygen system, lighting and instruments for cloud flying. Pilot comfort was improved by slightly reclining the seat back and increasing legroom, and visibility was increased through a larger one-piece cockpit canopy. Schempp-Hirth style airbrakes replaced the DFS style airbrakes of the IS-2, external mass balances fitted to the ailerons cured the tendency to flutter. The wing incidence was reduced to 2° to better align the fuselage with the airflow at higher speeds, reducing drag. Main designer was Władysław Okarmus, constructors were Jan Dyrek and Zbigniew Badura. The prototype was made in ZSLS No.5 in Krosno - it was the only prototype of SZD design that was not made in the SZD works in Bielsko.

SZD-12 Mucha 100 PZLBielsko SZD12A Mucha 100 Untitled Aviation Photo 1205841

Flight trials commenced on 14 November 1953 in Krosno (first flight by Adam Zientek); a tendency to control surface flutter was resolved by mass balancing. After this and other improvements, the Mucha 100 was cleared for production as the SZD-12 Mucha 100. from 1954. 256 were built in ZSLS in Krosno, 14 in Gdańsk and 20 in Wrocław.

Further improvements were incorporated into the SZD-12A Mucha 100A, which had the external mass balances replaced by weights in the leading edges of the ailerons, forward of the hinges. Another modification which was also applied retrospectively to earlier units was a re-located mainwheel, moved rearwards to reduce the weight on the tailwheel during ground handling.

70 Mucha 100's were exported, mostly to the USSR, DDR, Italy, Switzerland and China in multiple orders; single examples were also exported to Austria, France, Finland and India.

Variants

  • SZD-12 Mucha 100 – initial production version, 104 built
  • SZD-12A Mucha 100A – modified version with altered undercarriage arrangement and internal aileron mass balances, 186 built from 1958

    • Specifications (SZD-12 Mucha 100)

    Data from http://www.piotrp.de/SZYBOWCE/pszd12.htmThe World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde

    General characteristics

  • Crew: 1
  • Length: 7 m (23 ft 0 in)
  • Wingspan: 15 m (49 ft 3 in)
  • Height: 1.6 m (5 ft 3 in)
  • Wing area: 15 m2 (161 ft2)
  • Aspect ratio: 15
  • Wing profile: NACA 43012A
  • Empty weight: 195 kg (430 lb)
  • Gross weight: 290 kg (639 lb)

    • Performance

  • Maximum speed: 220 km/h (137 mph)
  • Stall speed: 55 km/h (34 mph)
  • G limits: +5.25 -2.62 at 250 km/h (155.3 mph; 135.0 kn)
  • Maximum glide ratio: 24 at 70 km/h (43.5 mph; 37.8 kn)
  • Rate of sink: 0.76 m/s (150 ft/min)

    • References

    SZD-12 Mucha 100 Wikipedia
    (Text) CC BY-SA