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Schleicher ASK 23

The Schleicher ASK 23 is a single-seat Club Class sailplane that was built by the German manufacturer Alexander Schleicher GmbH & Co.

ASK 23
Role Club class sailplane
National origin Germany
Manufacturer Schleicher
Designer Rudolf Kaiser
First flight October 1983
Number built 153

Design edit

The ASK 23 was the last glider to be designed by Rudolf Kaiser. It is an early-solo sailplane with docile handling, and was a successor to the Schleicher Ka 8 and ASK 18. It is also the single-seat counterpart of the two-seat Schleicher ASK 21 with a similar cockpit layout. It uses glass-fibre reinforced plastic and 'honeycomb' as its main construction materials. It has no flaps, a nose wheel and a fixed main-wheel with a tail-skid or optional tail-wheel.

First flown in October 1983, the initial version allowed for heavy pilots, with a maximum cockpit weight of 140 kg (310 lb), reduced to 120 kg (260 lb) in the later ASK23B version. 51 gliders of the original version were built, and 102 of the 'B' version.

Specifications (ASK23) edit

Data from Jane's All the World's Aircraft 1988–89 [1]

General characteristics

  • Crew: 1
  • Length: 7.1 m (23 ft 4 in)
  • Wingspan: 15 m (49 ft 3 in)
  • Height: 1.4 m (4 ft 7 in)
  • Wing area: 12.9 m2 (139 sq ft)
  • Aspect ratio: 17.4
  • Airfoil: root:Wortmann FX-61-168, tip:Wortmann FX-60-126
  • Empty weight: 230 kg (507 lb) ::::ASK23B: 235 kg (518 lb)
  • Max takeoff weight: 380 kg (838 lb) ::::ASK23B: 360 kg (790 lb)

Performance

  • Stall speed: 60 km/h (37 mph, 32 kn)
  • Never exceed speed: 220 km/h (140 mph, 120 kn) in smooth air
148 km/h (80 kn; 92 mph) in rough air
148 km/h (80 kn; 92 mph) on aero-tow
125 km/h (67 kn; 78 mph) on winch launch
  • g limits: +5.3 – 2.65
  • Maximum glide ratio: 34 at 80 km/h (43 kn; 50 mph)
  • Rate of sink: 0.62 m/s (122 ft/min) at 74 km/h (40 kn; 46 mph)
  • Wing loading: 29.5 kg/m2 (6.0 lb/sq ft) ::::ASK23B: 27.9 kg/m2 (5.7 lb/sq ft)

See also edit

Aircraft of comparable role, configuration, and era

Related lists

References edit

  1. ^ John W.R. Taylor, ed. (1988). Jane's All the World's Aircraft 1988-89. London: Jane's Information Group. pp. 633–634. ISBN 0-7106-0867-5.

Further reading edit

  • Milgram, Fred Thomas; Judah; translator; contributor (1999). Fundamentals of sailplane design (3rd ed.). College Park, Maryland: College Park Press. ISBN 978-0966955309. {{cite book}}: |last2= has generic name (help)CS1 maint: multiple names: authors list (link)
  • Simons, Martin (2005). Sailplanes 1965-2000 (2nd revised ed.). Königswinter: EQIP Werbung und Verlag G.m.b.H. ISBN 978-3-9808838-1-8.

External links edit

    schleicher, single, seat, club, class, sailplane, that, built, german, manufacturer, alexander, schleicher, gmbh, role, club, class, sailplane, national, origin, germany, manufacturer, schleicher, designer, rudolf, kaiser, first, flight, october, 1983, number,. The Schleicher ASK 23 is a single seat Club Class sailplane that was built by the German manufacturer Alexander Schleicher GmbH amp Co ASK 23 Role Club class sailplane National origin Germany Manufacturer Schleicher Designer Rudolf Kaiser First flight October 1983 Number built 153 Contents 1 Design 2 Specifications ASK23 3 See also 4 References 5 Further reading 6 External linksDesign editThe ASK 23 was the last glider to be designed by Rudolf Kaiser It is an early solo sailplane with docile handling and was a successor to the Schleicher Ka 8 and ASK 18 It is also the single seat counterpart of the two seat Schleicher ASK 21 with a similar cockpit layout It uses glass fibre reinforced plastic and honeycomb as its main construction materials It has no flaps a nose wheel and a fixed main wheel with a tail skid or optional tail wheel First flown in October 1983 the initial version allowed for heavy pilots with a maximum cockpit weight of 140 kg 310 lb reduced to 120 kg 260 lb in the later ASK23B version 51 gliders of the original version were built and 102 of the B version Specifications ASK23 editData from Jane s All the World s Aircraft 1988 89 1 General characteristicsCrew 1 Length 7 1 m 23 ft 4 in Wingspan 15 m 49 ft 3 in Height 1 4 m 4 ft 7 in Wing area 12 9 m2 139 sq ft Aspect ratio 17 4 Airfoil root Wortmann FX 61 168 tip Wortmann FX 60 126 Empty weight 230 kg 507 lb ASK23B 235 kg 518 lb Max takeoff weight 380 kg 838 lb ASK23B 360 kg 790 lb Performance Stall speed 60 km h 37 mph 32 kn Never exceed speed 220 km h 140 mph 120 kn in smooth air 148 km h 80 kn 92 mph in rough air 148 km h 80 kn 92 mph on aero tow 125 km h 67 kn 78 mph on winch launch dd dd dd g limits 5 3 2 65 Maximum glide ratio 34 at 80 km h 43 kn 50 mph Rate of sink 0 62 m s 122 ft min at 74 km h 40 kn 46 mph Wing loading 29 5 kg m2 6 0 lb sq ft ASK23B 27 9 kg m2 5 7 lb sq ft See also editAircraft of comparable role configuration and era Glasflugel 205 Club Libelle Grob G102 Astir SZD 51 Junior Related lists List of glidersReferences edit John W R Taylor ed 1988 Jane s All the World s Aircraft 1988 89 London Jane s Information Group pp 633 634 ISBN 0 7106 0867 5 Further reading editMilgram Fred Thomas Judah translator contributor 1999 Fundamentals of sailplane design 3rd ed College Park Maryland College Park Press ISBN 978 0966955309 a href Template Cite book html title Template Cite book cite book a last2 has generic name help CS1 maint multiple names authors list link Simons Martin 2005 Sailplanes 1965 2000 2nd revised ed Konigswinter EQIP Werbung und Verlag G m b H ISBN 978 3 9808838 1 8 External links edit nbsp Wikimedia Commons has media related to Schleicher ASK 23 Sailplane directory Retrieved from https en wikipedia org w index php title Schleicher ASK 23 amp oldid 1126892813, wikipedia, wiki, book, books, library,

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