Bautek Astir

Last updated
Astir
Role Hang glider
National origin Germany
Manufacturer Bautek
Status In production
Unit cost
€4580 (2012)

The Bautek Astir is a German high-wing, single-place, hang glider designed and produced by Bautek, of Kenn, Germany. [1]

Germany Federal parliamentary republic in central-western Europe

Germany, officially the Federal Republic of Germany, is a country in Central and Western Europe, lying between the Baltic and North Seas to the north, and the Alps to the south. It borders Denmark to the north, Poland and the Czech Republic to the east, Austria and Switzerland to the south, France to the southwest, and Luxembourg, Belgium and the Netherlands to the west.

Bautek is a German aircraft manufacturer based in Kenn. The company specializes in hang gliders and ultralight trikes.

Kenn, Germany Place in Rhineland-Palatinate, Germany

Kenn is a municipality in the Trier-Saarburg district, in Rhineland-Palatinate, Germany.

Contents

Design and development

The Astir is an intermediate glider for recreational flying. It has an unusual bowsprit designed to crumple during a crash landing, preventing damage to the glider structure. [1]

Bowsprit spar extending forward from a sailing vessels prow

The bowsprit of a sailing vessel is a spar extending forward from the vessel's prow. It provides an anchor point for the forestay(s), allowing the fore-mast to be stepped farther forward on the hull.

The aircraft is made from aluminum tubing. The wing is covered in Dacron sailcloth and has a Mylar leading edge. Its 10.5 m (34.4 ft) span wing is cable braced. The nose angle is 130° and the aspect ratio is 7.6:1. Unlike many hang glider designs, the Astir comes in one size only with a wide hook-in weight range of 60 to 115 kg (132 to 254 lb). The Astir is certified by DHV as a class 2 glider. [1]

Leading edge

The leading edge is the part of the wing that first contacts the air; alternatively it is the foremost edge of an airfoil section. The first is an aerodynamic definition, the second a structural one. As an example of the distinction, during a tailslide, from an aerodynamic point of view, the trailing edge becomes the leading edge and vice versa but from a structural point of view the leading edge remains unchanged.

Specifications (Astir)

Data from Bertrand and Bautek [1] [2]

General characteristics

Performance

  • Maximum speed: 80 km/h (50 mph; 43 kn)
  • Stall speed: 25 km/h (16 mph; 13 kn)

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References

  1. 1 2 3 4 Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 43. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X
  2. ↑ Bautek (n.d.). "Astir ... eine Nasenlänge voraus (German language)". Archived from the original on 5 March 2011. Retrieved 13 February 2012.
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