Английская Википедия:Allstar SZD-59
The SZD-59 Acro is a single-seat glass composite glider for aerobatics and cross-country flying by PZL Allstar of Bielsko-Biała, Poland.[1][2][3]
The SZD-59 can be flown with a 13.2m span or a 15.0m span. Attaching or detaching the wing-tips takes only a few minutes.[4][2] With 15m wing-tips it is a competitive Club Class glider, while it is a competitive aerobatic glider in the 13.2m configuration.[3]
Design and certification
The SZD-59 Acro was derived from the SZD-48-3 Jantar Standard 3[1] in 1990–91 mainly by Jan Knapik.[4][3] The fuselage is only a slightly modified version of the one used in the Jantar Standard 3. However, the T-tail has been replaced by a cross-tail with larger rudder and the elevator of the SZD-42-2 Jantar 2.[3]
The design life is 15,000 hours, though at present it is approved for only 4,000 hours of operation.[1][2] In 15m configuration, the SZD-59 is approved in the utility category of JAR 22 (sailplanes) of the Joint Aviation Authorities, and in the 13.2m configuration it is approved according to the aerobatics category of JAR 22.[4][5]
Manufacturer
The prototype was first demonstrated during the 1991 FAI World Glider Aerobatic Championships in Zielona Góra. Twelve Acros were built by PZL-Bielsko until the production stopped in 1996 due to economic problems.[3] Allstar PZL Glider Sp. z o.o. in Bielsko-Biała (Poland)[2] restarted production of the SZD-59 Acros in 2004.[3] Currently, it is the only unlimited glider in serial production.[3]
Soaring
With a handicap factor of 100, according to the 2008 handicap list of the Deutscher Aero Club e.V.,[6] the SZD-59 in 15m-configuration is a typical Club Class glider. With 15m wing-tips with or without winglets glide performance can be enhanced by increasing its wing loading with up to 150 litres of water ballast,[2] but water ballast is not allowed in the 13.2m configuration.[7]
Aerobatics
In the 13.2m configuration, the SZD-59 is certified for unlimited aerobatics,[2] whereas with the 15m wing-tips only basic aerobatic maneuvers (looping, turn, chandelle, spin) are permitted.[7]
While international aerobatic championships in the unlimited category are dominated by Swift S-1 and MDM-1 Fox,[8] pilots have competed successfully with SZD-59 Acros in national and regional championships.[3] Recently, Wolfgang Kasper placed 4th in the German Nationals 2008.[9]
Specifications in utility configuration
- Maneuver speed: 200 km/h
- Water ballast: 150l
- Wing loading range: 31.00-50.70 kg/m2
* at 540 kg
** at 97 km/h
Specifications in aerobatic configuration
- Maneuver speed: 200 km/h
- Water ballast: 0l
- Wing loading range: 33.7-38.8 kg/m2[10]
* at 380 kg
** at 80 km/h
See also
Comparable aerobatic gliders
The aerobatic performance of the SZD-59 13.2m is comparable to:
Gliders with comparable cross-country performance
The soaring performance of the SZD-59 15m is comparable to Schleicher ASW 19, Glaser-Dirks DG-100, Rolladen-Schneider LS1f, Glasflügel H206 Hornet, PZL Bialsko Jantar Standard, Grob G102 Standard Astir, Bölkow Phöbus B3, Schempp-Hirth Cirrus/Cirrus VTC 17,74m, Schempp-Hirth Standard Cirrus 16m, Bölkow Phöbus C1, Akaflieg Darmstadt D37, Akaflieg Braunschweig SB 7, Neukom Elfe 17m, Standard Libelle 17m and the Delphin 1 by Fritz Mahrer.[6][11]
References
Шаблон:Commons category Шаблон:Reflist
Шаблон:PZL aircraft Шаблон:Polish gliders
- ↑ 1,0 1,1 1,2 Official SZD-59 Acro website – accessed 2008-02-23
- ↑ 2,0 2,1 2,2 2,3 2,4 2,5 Technical description of the SZD-59 Acro on SZD's website – accessed 2008-02-23; unavailable 2008-08-06, but equivalent to: Technical description of the SZD-59 Acro on the website of the German dealer (in German)Шаблон:Dead link – accessed 2008-08-06
- ↑ 3,0 3,1 3,2 3,3 3,4 3,5 3,6 3,7 SAGA: SZD-59 Acro website (in German) – accessed 2008-02-23
- ↑ 4,0 4,1 4,2 Ошибка цитирования Неверный тег
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не указан текст - ↑ British Gliding Association: Segelflugzeug-Kennblatt Nr.: 415 (German) by the Luftfahrt-Bundesamt – accessed 2008-08-05
- ↑ 6,0 6,1 2008 DAeC Handicap list – accessed 2008-02-23
- ↑ 7,0 7,1 Flight handbook of the SZD-59 Acro
- ↑ FAI World and European Glider Aerobatic Championships – accessed 2008-08-05
- ↑ Results of the German Glider Aerobatic Championships 2008 (unlimited)Шаблон:Dead link – accessed 2008-08-02
- ↑ calculated from data in Datasheet of the SZD-59 Acro on the SZD-Website – accessed 2008-02-23 – assuming a pilot weight of 55kg and 10kg trim weight
- ↑ Das Projekt "Delphin 1" (German) – accessed 2008-08-05
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