Fulfilling a requirement to be built out of non-strategic materials, using all-wooden construction, the Ju322 was to be able to carry 20,000 kg (44,000 lb) of cargo, equivalent to either a Panzer IV tank, a 88mm anti-aircraft gun, a half-track or a self propelled gun, including attendant personnel, ammunition and fuel.

[1] The glider's tailplane extended from the centre section, and had a typical arrangement of stabilizing fins and vertical rudder.

Armament for production gliders would have consisted of three manned turrets, each with a single 7.92 mm MG 15 machine gun.

During construction of the first prototype (Ju 322 V1), problems were encountered with building an all-wooden glider as Junkers did not have expertise in the use of such materials.

The test flight was largely successful after the Ju 90 had managed, with some effort, to tow the glider off the ground before running out of runway.