Dynamic Sport Gravis

Gravis
Role	Paraglider
National origin	Poland
Manufacturer	Dynamic Sport
Designer	Wojtek Pierzyński
Status	Production completed
Produced	mid-2000s
Unit cost	€863 (Gravis L, 2004)

The Dynamic Sport Gravis is a Polish single-place, paraglider that was designed by Wojtek Pierzyński and produced by Dynamic Sport of Kielce. It is now out of production.^[1]

Design and development

The Gravis was designed as a beginner glider. The models are each named for their relative size.^[1]

Operational history

Reviewer Noel Bertrand described the Gravis in a 2003 review as priced very competitively.^[1]

Variants

Gravis M

Medium-sized model for mid-weight pilots. Its 10 m (32.8 ft) span wing has a wing area of 25.5 m² (274 sq ft), 30 cells and the aspect ratio is 3.9:1. The pilot weight range is 50 to 70 kg (110 to 154 lb).^[1]

Gravis L

Large-sized model for heavier pilots. Its 10.5 m (34.4 ft) span wing has a wing area of 27.5 m² (296 sq ft), 32 cells and the aspect ratio is 4.0:1. The pilot weight range is 65 to 85 kg (143 to 187 lb).^[1]

Gravis XL

Extra large-sized model for much heavier pilots. Its 11.0 m (36.1 ft) span wing has a wing area of 29.5 m² (318 sq ft), 34 cells and the aspect ratio is 4.1:1. The pilot weight range is 80 to 110 kg (176 to 243 lb).^[1]

Specifications (Gravis L)

Data from Bertrand^[1]

General characteristics

• Crew: one
• Wingspan: 10.5 m (34 ft 5 in)
• Wing area: 27.5 m² (296 sq ft)
• Aspect ratio: 4.0:1

Performance

• Maximum speed: 42 km/h (26 mph; 23 kn)
• Rate of sink: 1.3 m/s (260 ft/min)

References

1. Bertrand, Noel; Rene Coulon; et al: World Directory of Leisure Aviation 2003-04, page 15. Pagefast Ltd, Lancaster OK, 2003. ISSN 1368-485X