[1] The Speedfex was designed as man-packable double-surface competition glider for cross country flying.
As such the Speedfex weighs only 29.5 kg (65.0 lb) and can be reduced to a folded size of 2.05 m (6.7 ft)[1][2] The aircraft is made from aluminum tubing, with the wing covered in Dacron sailcloth.
Its 10 m (32.8 ft) span wing is cable braced from a single kingpost.
The pilot hook-in weight range is 70 to 110 kg (154 to 243 lb).
[1] Data from Bertrand[1][2]General characteristics Performance