Flight Design Twin

The aircraft was designed as a tandem glider for flight training. Test flying was carried out by factory test pilot Richard Bergmann.^[1]

The aircraft's 15.1 m (49.5 ft) span wing has 72 cells, a wing area of 43 m² (460 sq ft) and an aspect ratio of 5.3:1. The pilot weight range is 160 to 210 kg (353 to 463 lb). The glider is DHV 1-2 Biplace certified.^[1]

The design progressed through three generations of models, the Twin, Twin 2 and Twin 3, each improving on the last.^[1]

Data from Bertrand^[1]

General characteristics

• Crew: one
• Capacity: one passenger
• Wingspan: 15.1 m (49 ft 6 in)
• Wing area: 43 m² (460 sq ft)
• Aspect ratio: 5.3:1

Performance

• Maximum speed: 40 km/h (25 mph, 22 kn)
• Rate of sink: 1.1 m/s (220 ft/min)