Advance Sigma

The Advance Sigma is a series of Swiss single-place, paragliders, designed and produced by Advance Thun of Thun.[1]

Sigma
Role Paraglider
National origin Switzerland
Manufacturer Advance Thun SA
Status In production (Sigma 9, 2016)
Unit cost
£1,999 (Sigma 5 31, 2004)

Design and development

The Sigma was designed as a cross country intermediate glider.[1]

The design has progressed through nine generations of models, the Sigma, Sigma 2, 3, 4, 5, 6, 7, 8 and 9, each improving on the last. The models are each named for their rough wing area in square metres.[1]

Variants
Sigma 5 23
Small-sized model for lighter pilots. Its 11.18 m (36.7 ft) span wing has wing area of 23.76 m2 (255.8 sq ft), 58 cells and the aspect ratio is 5.20:1. The pilot weight range is 60 to 75 kg (132 to 165 lb). The glider model is DHV 2 certified.[1]
Sigma 5 26
Mid-sized model for medium-weight pilots. Its 11.64 m (38.2 ft) span wing has wing area of 26.04 m2 (280.3 sq ft), 58 cells and the aspect ratio is 5.20:1. The pilot weight range is 70 to 90 kg (154 to 198 lb). The glider model is DHV 2 certified.[1]
Sigma 5 28
Large-sized model for heavier pilots. Its 11.99 m (39.3 ft) span wing has wing area of 27.62 m2 (297.3 sq ft), 58 cells and the aspect ratio is 5.20:1. The pilot weight range is 85 to 107 kg (187 to 236 lb). The glider model is DHV 2 certified.[1]
Sigma 5 31
Extra large-sized model for heavier pilots. Its 12.71 m (41.7 ft) span wing has wing area of 31.04 m2 (334.1 sq ft), 58 cells and the aspect ratio is 5.20:1. The pilot weight range is 102 to 127 kg (225 to 280 lb). The glider model is DHV 2 certified.[1]
Sigma 6 22
Small-sized model for lighter pilots. Its 10.88 m (35.7 ft) span wing has wing area of 21.95 m2 (236.3 sq ft), 61 cells and the aspect ratio is 5.48:1. The glider take-off weight range is 55 to 80 kg (121 to 176 lb). The glide ratio is 9.2:1.[2]
Sigma 6 26
Mid-sized model for medium-weight pilots. Its 11.93 m (39.1 ft) span wing has a wing area of 26.00 m2 (279.9 sq ft), 61 cells and the aspect ratio is 5.48:1. The glider take-off weight range is 70 to 95 kg (154 to 209 lb). The glide ratio is 9.2:1.[2]
Sigma 6 28
Large-sized model for heavier pilots. Its 12.30 m (40.4 ft) span wing has a wing area of 27.63 m2 (297.4 sq ft), 61 cells and the aspect ratio is 5.48:1. The glider take-off weight range is 85 to 110 kg (187 to 243 lb). The glide ratio is 9.2:1.[2]
Sigma 6 31
Extra large-sized model for heavier pilots. Its 13.04 m (42.8 ft) span wing has a wing area of 31.05 m2 (334.2 sq ft), 61 cells and the aspect ratio is 5.48:1. The glider take-off weight range is 100 to 130 kg (220 to 287 lb). The glide ratio is 9.2:1.[2]
Sigma 7 23
Small-sized model for lighter pilots. Its 11.42 m (37.5 ft) span wing has wing area of 23.1 m2 (249 sq ft), 61 cells and the aspect ratio is 5.65:1. The glider take-off weight range is 60 to 80 kg (132 to 176 lb). The glider model is EN/LTF 2 certified. The glide ratio is 9.2:1.[3]
Sigma 7 26
Mid-sized model for medium-weight pilots. Its 12.13 m (39.8 ft) span wing has a wing area of 26.04 m2 (280.3 sq ft), 61 cells and the aspect ratio is 5.65:1. The glider take-off weight range is 70 to 95 kg (154 to 209 lb). The glider model is EN/LTF 2 certified. The glide ratio is 9.2:1.[3]
Sigma 7 28
Large-sized model for heavier pilots. Its 12.61 m (41.4 ft) span wing has a wing area of 28.16 m2 (303.1 sq ft), 61 cells and the aspect ratio is 5.65:1. The glider take-off weight range is 85 to 110 kg (187 to 243 lb). The glider model is EN/LTF 2 certified. The glide ratio is 9.2:1.[3]
Sigma 7 31
Extra large-sized model for heavier pilots. Its 13.15 m (43.1 ft) span wing has a wing area of 30.61 m2 (329.5 sq ft), 61 cells and the aspect ratio is 5.65:1. The glider take-off weight range is 100 to 130 kg (220 to 287 lb). The glider model is EN/LTF 2 certified. The glide ratio is 9.2:1.[3]
Sigma 8 23
Small-sized model for lighter pilots. Its 11.63 m (38.2 ft) span wing has wing area of 22.5 m2 (242 sq ft), 61 cells and the aspect ratio is 6.0:1. The glider take-off weight range is 65 to 85 kg (143 to 187 lb). The glider model is EN/LTF certified. The glide ratio is 10:1.[4]
Sigma 8 25
Mid-sized model for medium-weight pilots. Its 12.25 m (40.2 ft) span wing has a wing area of 25.0 m2 (269 sq ft), 61 cells and the aspect ratio is 6.0:1. The glider take-off weight range is 75 to 95 kg (165 to 209 lb). The glider model is EN/LTF certified. The glide ratio is 10:1.[4]
Sigma 8 27
Large-sized model for heavier pilots. Its 12.75 m (41.8 ft) span wing has a wing area of 27.0 m2 (291 sq ft), 61 cells and the aspect ratio is 6.0:1. The glider take-off weight range is 85 to 110 kg (187 to 243 lb). The glider model is EN/LTF certified. The glide ratio is 10:1.[4]
Sigma 8 29
Extra large-sized model for heavier pilots. Its 13.21 m (43.3 ft) span wing has a wing area of 29.0 m2 (312 sq ft), 61 cells and the aspect ratio is 6.0:1. The glider take-off weight range is 100 to 130 kg (220 to 287 lb). The glider model is EN/LTF certified. The glide ratio is 10:1.[4]
Sigma 9 23
Small-sized model for lighter pilots. Its 11.5 m (37.7 ft) span wing has a wing area of 22.5 m2 (242 sq ft), 59 cells and the aspect ratio is 5.80:1. The glider take-off weight range is 60 to 85 kg (132 to 187 lb). The glider model is EN/LTF C certified.[5]
Sigma 9 25
Mid-sized model for medium-weight pilots. Its 12.1 m (39.7 ft) span wing has a wing area of 25.1 m2 (270 sq ft), 59 cells and the aspect ratio is 5.80:1. The glider take-off weight range is 75 to 100 kg (165 to 220 lb). The glider model is EN/LTF C certified.[5]
Sigma 9 27
Large-sized model for heavier pilots. Its 12.6 m (41.3 ft) span wing has a wing area of 27.0 m2 (291 sq ft), 59 cells and the aspect ratio is 5.80:1. The glider take-off weight range is 90 to 115 kg (198 to 254 lb). The glider model is EN/LTF C certified.[5]
Sigma 9 29
Extra large-sized model for heavier pilots. Its 13.0 m (42.7 ft) span wing has a wing area of 29.0 m2 (312 sq ft), 59 cells and the aspect ratio is 5.80:1. The glider take-off weight range is 105 to 130 kg (231 to 287 lb). The glider model is EN/LTF C certified.[5]

Specifications (Sigma 5 26)

Data from Bertrand[1]

General characteristics

  • Crew: one
  • Wingspan: 11.64 m (38 ft 2 in)
  • Wing area: 26.04 m2 (280.3 sq ft)
  • Aspect ratio: 5.20:1

Performance

  • Maximum speed: 48 km/h (30 mph, 26 kn)
  • Rate of sink: 1.0 m/s (200 ft/min)

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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. "Sigma 6 Technical details". advance.ch. Archived from the original on 2 December 2007. Retrieved 14 March 2016.
  3. Advance Thun SA. "Signma 7: Technical details". advance.ch. Archived from the original on 16 February 2010. Retrieved 14 March 2016.
  4. Advance Thun SA. "Sigma 8: Technical details". advance.ch. Archived from the original on 25 March 2013. Retrieved 14 March 2016.
  5. Advance Thun SA. "Sigma 9". advance.ch. Archived from the original on 12 March 2016. Retrieved 14 March 2016.
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