[1] The Gemini was designed as a tandem glider for flight training.
[1] The aircraft's 14.7 m (48.2 ft) span wing has 49 cells, a wing area of 41.4 m2 (446 sq ft) and an aspect ratio of 5.2:1.
The pilot weight range is 140 to 220 kg (309 to 485 lb).
Like all FreeX wings it features internal diagonal bracing.
The glider is DHV 1-2 Biplace certified.