Advance Bi Beta

The Advance Bi Beta (sometimes written as BiBeta) is a tandem two-place paraglider, designed and produced by Advance Thun of Thun, Switzerland.[1]

Bi Beta
Advance Bi Beta 4
Role Paraglider
National origin Switzerland
Manufacturer Advance Thun SA
Status In production (BiBeta 5, 2016)

Design and development

The Beta was designed as a two-place flight training glider for introducing new student pilots to the sport.[1]

The Beta has undergone continuous development, starting with the original Beta, through the Beta 2, 3, 4 and 5 models.[1]

Variants
Bi Beta
Tandem two place glider, initial model.
Bi Beta 2/3
Tandem two place glider sold in the mid-2000s.[1]
Bi Beta 4
Tandem two place glider sold in the late-2000s.
BiBeta 5
Tandem two place glider sold in the mid-2010s. Its wing has an area of 40.81 m2 (439.3 sq ft) and an aspect ratio of 5.2:1. The pilot weight range is 120 to 225 kg (265 to 496 lb).[2]

Specifications (BiBeta 5)

Data from manufacturer[2]

General characteristics

  • Crew: one
  • Capacity: one passenger
  • Wing area: 40.81 m2 (439.3 sq ft)
  • Aspect ratio: 5.2:1
  • Empty weight: 8.5 kg (19 lb)
  • Gross weight: 225 kg (496 lb)

Performance

  • Maximum speed: 47 km/h (29 mph, 25 kn)
  • Cruise speed: 41 km/h (25 mph, 22 kn) trim speed
  • Maximum glide ratio: 8.5:1
  • Rate of sink: 1.2 m/s (240 ft/min)

References
  1. Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 10. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X
  2. Advance Thun SA. "BiBeta 5". advance.ch. Archived from the original on 16 March 2016. Retrieved 11 March 2016.
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