In 1966 Henry Preiss converted an all metal Schreder HP-14 into a 2-place ship with side-by-side seating (two sets of rudder pedals and a center control stick with a bar that swings from one side to the other) and a fixed landing wheel. The design used standard HP-14 wings with a 2-ft center section added in the fuselage.
Wing span: 17.22 m / 56.5 ft
Wing area: 13 sq.m / 140 sq.ft
Empty Weight: 233 kg / 492 lb
Payload: 181 kg / 400 lb
Gross Weight: 404 kg / 892 lb
Wing Load: 31.08 kg/sq.m / 6.4 lb/sq.ft
L/DMax: 38 105 kph / 56 kt / 65 mph
MinSink: 0.61 m/s / 2.0 fps / 1.18 kt
Airfoil: Wortmann FX 61-163 mod.
Aspect ratio: 21.6
No. Built: 1