This is a further development of the GRUNAU 8 twoseater which Hirth designed some time ago to the order of the German Air Sport Association. It is a dual-control sailplane for instruction of pupils in towed flight, thermal flying, blind flying and ordinary soaring.
Wolf Hirth has found that pupils who make slow progress, or lack confidence, are greatly benefited by a spell of "dual," and a preliminary soar over the course with an instructor has helped many a pilot to his "C" certificate. Aeroplane pilots also can be introduced to soaring flight without any tedious messing- about in primaries. The extra controls are easily removed for passenger flights.
The chief features of the Göppingen 2 are a certain amount of sweep-back to the wings, a balloon-tyred wheel (in this case of 40 cm. diameter, and capable of being braked from either cockpit), a side door for entry to the rear seat, and a single transparent cover to both cockpits, which enables conversation to be carried on in normal tones. For blind flying instruction dark blinds can be fitted over the rear cockpit; they can be lowered and raised by the instructor from in front.
Type Two seat glider for training
Dimensions Length 6,60 m , height 1,8 m ,  span 14,50 m , wing area 21,50 m2  , fuselage area 0,60 m2, aspect ratio 9,8 , aileron 1,5 m2, fin 1,18 m2, rudder 0,98 m2, stabilizer 3,1 m2, elevator 1,5 m2, dihedral 4 °
Weights Empty 198 kg, loaded 398 kg , load 100 kg , wing load 13,85 kg/m2
Performance Max..speed 220 km/h , glide ratio 1 : 17, lowest sink 1,0 m/sec. at 50 km/h