Engineering:Schleicher ASH 26

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Short description: German glider / motor glider family by Alexander Schleicher, 1993
ASH 26
Schleicher ASH 26E sailplane 2.jpg
ASH 26 E
Role 18 metre Class sailplane
National origin Germany
Manufacturer Schleicher
Designer Martin Heide
First flight 1993
Number built 258 (ASH 26 E, as of June 2018)[1]
Developed into ASH 31

The ASH 26 is an 18 metre Class glider, built of modern fibre reinforced composites. It first flew in 1993. It is manufactured by Alexander Schleicher GmbH & Co. The 'H' indicates this is a design of Martin Heide.

The ASH 26 has plain flaps, a retractable undercarriage and a water ballast system. The structure is a complex composite of carbon, aramid and polyethylene fibre reinforced plastic. The wings have pneumatic turbulators. Of the ASH 26s sold, over 90% are the self-launching version, the ASH 26 E;[2] the engine being a liquid cooled Diamond (now Austro Engine) AE50R Wankel rotary engine.

Variants

ASH 26
Production variant with 18-metre wingspan.
ASH 26 E
Production variant, self launching utilising the 37 kW (50 hp) AE50R engine.
  • Schleicher ASH 26E sailplane 1.jpg
  • Schleicher ASH 26E sailplane 3.jpg

Specifications (ASH 26 E)

Data from Jane's all the world's aircraft, 1992–93,[3] Schleicher ASH 26 E / ASH 26 brochure[4]

General characteristics

  • Crew: 1
  • Capacity: 110 kg (240 lb) water ballast
  • Length: 7.55 m (24 ft 9 in)
  • Wingspan: 18 m (59 ft 1 in)
  • Height: 1.51 m (4 ft 11 in)
  • Wing area: 11.68 m2 (125.7 sq ft)
  • Aspect ratio: 27.69
  • Airfoil: DU 89-134/14[2]
  • Empty weight: 325 kg (717 lb)
  • Max takeoff weight: 525 kg (1,157 lb)
  • Fuel capacity: maximum: 46 L (12 US gal; 10 imp gal) ; fuselage tank only: 16 L (4.2 US gal; 3.5 imp gal)
  • Powerplant: 1 × Austro Engine AE50R liquid-cooled Wankel rotary engine, 37 kW (50 hp)
  • Propellers: 2-bladed Alexander Schleicher, 1.55 m (5 ft 1 in) diameter

Performance

  • Stall speed: 71 km/h (44 mph, 38 kn)
  • Never exceed speed: 280 km/h (170 mph, 150 kn)
  • Maximum glide ratio: 50:1 at 115 km/h (71 mph; 62 kn)
  • Rate of climb: 4 m/s (790 ft/min) powered
  • Rate of sink: 0.48 m/s (94 ft/min) and 1.75 m/s (5.7 ft/s) at 200 km/h (120 mph; 110 kn)
  • Wing loading: 45 kg/m2 (9.2 lb/sq ft)

References

  1. ↑ "Dipl.-Ing. Martin Heide has retired". Alexander Schleicher GmbH & Co. Segelflugzeugbau. 28 June 2018. https://www.alexander-schleicher.de/en/dipl-ing-martin-heide-in-den-ruhestand-verabschiedet/. Retrieved 2 January 2019. "To date, 258 motorgliders of this type have left the Schleicher workshops." 
  2. ↑ 2.0 2.1 Johnson, Richard (September 1995). "A Flight Test Evaluation of the ASH-26E Self Launching 18-Meter Sailplane". http://www.postfrontal.com/PDF/prove_alianti/ASH26.pdf. Retrieved 31 August 2011. 
  3. ↑ Lambert, Mark; Munson, Kenneth; Taylor, Michael J.H., eds (1992). Jane's all the world's aircraft, 1992–93 (83rd ed.). Coulson, Surrey, UK: Jane's Information Group. pp. 590–591. ISBN 0710609876. 
  4. ↑ "ASH 26 E / ASH 26 Brochure". Alexander Schleicher GmbH & Co. Segelflugzeugbau. 14 March 2004. https://www.alexander-schleicher.de/wp-content/uploads/2015/04/AS-Einzelprosp-26-e-03-07.pdf. Retrieved 2 January 2019. 

Further reading

  • Simons, Martin (2006). Sailplanes: 1965-2000 (2nd ed.). Königswinter, Germany: Equip. ISBN 978-3980883818. 

External links



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