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SZD 51 Junior

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Top speed
  
220 km/h

Length
  
6.69 m

Wingspan
  
15 m

Manufacturer
  
PZL

SZD-51 Junior httpsuploadwikimediaorgwikipediacommons55

Glider flight 295 pzl bielsko szd 51 junior ph 934 sl lemelerveld


The PZL Bielsko SZD-51 Junior is a Polish single-seat training and club sailplane.

Contents

Glider flight 297 pzl bielsko szd 51 junior ph 934 sl lemelerveld


Development

The Junior was designed by Stanislaw Zientek, based on the SZD-47 which had originally been developed in the years 1973 - 1974 at the Research and Development Center in Bielsko-Biała. The prototype SZD-51-0 was first flown on 31 December 1980, and was followed by the production version, the SZD-51-1, with a modified fuselage, A total of 261 aircraft were built. The type was proposed for licence production in Brazil, but in the event only a single SZD-51-1 was built there. The simplified SZD-51-2 was a runner up in the IGC World Class design contest.

Description

SZD-51 Junior Airlinersnet

The SZD-51-1 "Junior" is a single-seat glider of fiberglass construction. Only the rudder is fabric covered. The fuselage has an internal tubular steel frame. The aircraft has a two-piece wing with a spar, and a fixed main wheel. The Schempp-Hirth type airbrakes are fitted only on the top surface of the wing. Rudder pedals are adjustable. The control for the rudder via cables, all other control surfaces are operated by rods. The Junior is characterized by good slow flight characteristics and is very forgiving in flight behaviour. The aircraft is designed for early solo and club flying, but is certified for aerobatics and can be equipped for high-altitude flight and cloud flying.

Specifications (SZD-51-1)

Data from Jane's All the World's Aircraft 1988-89

General characteristics

SZD-51 Junior SP3508 MM Aeroclub Zaglebia Miedziowego PZL SZD51 Junior at

  • Crew: 1
  • Length: 6.69 m (21 ft 11 in)
  • Wingspan: 15 m (49 ft 3 in)
  • Height: 1.54 m (5 ft 1 in)
  • Wing area: 12.51 m2 (134.7 sq ft)
  • Aspect ratio: 18
  • Airfoil: root:Wortmann FX-S-02-196; tip:FX-S-02/1-158
  • Empty weight: 242 kg (534 lb)
  • Max takeoff weight: 355 kg (783 lb)

    • Performance

    SZD-51 Junior SZD511 JUNIOR Allstar PZL Glider Sp z oo

  • Stall speed: 60 km/h (37 mph; 32 kn)
  • Never exceed speed: 220 km/h (137 mph; 119 kn) in smooth air
  • Max rough air speed: 150 km/h (81 kn; 93 mph)
  • Max aero-tow speed: 140 km/h (76 kn; 87 mph)
  • Max winch-launch speed: 128 km/h (69 kn; 80 mph)
  • Maximum glide ratio: 35
  • Best glide speed: 80 km/h (43 kn; 50 mph)
  • Rate of sink: 0.59 m/s (116 ft/min) at 72 km/h (39 kn; 45 mph)
  • Wing loading: 28.4 kg/m2 (5.8 lb/sq ft)

    • SZD-51 Junior SZD51 Junior glider flight winch launch traffic pattern and

    SZD-51 Junior Airlinersnet

    References

    SZD-51 Junior Wikipedia
    (Text) CC BY-SA