Firebird Grid

Design and development

The Grid was designed as an intermediate glider. The models are each named for their relative size.

Variants

Grid S

Small-sized model for lighter pilots. Its 11.36 m (37.3 ft) span wing has a wing area of 24.41 m² (262.7 sq ft), 50 cells and the aspect ratio is 5.29:1. The pilot weight range is 65 to 85 kg (143 to 187 lb). The glider model is DHV 1-2 certified.

Grid M

Mid-sized model for medium-weight pilots. Its 11.90 m (39.0 ft) span wing has a wing area of 26.77 m² (288.1 sq ft), 50 cells and the aspect ratio is 5.29:1. The pilot weight range is 80 to 105 kg (176 to 231 lb). The glider model is DHV 1-2 certified.

Grid L

Large-sized model for heavier pilots. Its 12.44 m (40.8 ft) span wing has a wing area of 29.23 m² (314.6 sq ft), 50 cells and the aspect ratio is 5.29:1. The pilot weight range is 100 to 130 kg (220 to 287 lb). The glider model is DHV 1-2 certified.

Specifications (Grid L)

Data from Bertrand

General characteristics

Crew: one

Wingspan: 12.44 m (40 ft 10 in)

Wing area: 29.23 m² (314.6 sq ft)

Aspect ratio: 5.29:1

Performance

Maximum speed: 50 km/h (31 mph; 27 kn)

Rate of sink: 1.1 m/s (220 ft/min)