For this purpose, the DFS 332 was given twin fuselages, of a long and slender shape with flat sides.
The wing section to study would be attached between the fuselages, with fittings that allowed an easy exchange.
The DFS 332 was a glider, a configuration that presumably had advantages for aerodynamic testing because the airflow over the wing would not be disturbed by a propeller.
The design of the fuselages, with flat wall sides and noses that extended well in front of the wing, must also have been chosen to achieve undisturbed flow over the test section.
However, to be able to perform tests at higher speeds, the aircraft was also fitted with two Walter HWK-R II/203 rocket engines, delivering 750 kg of thrust each.