The sketch below shows the construction principle of the "flying saucers." The captions are, in part, purely conjecture, based on reports by pilots who pursued the disks; in part, they were learned from secret research institutions. The central core contains the explosive (SP) and the installations for radar steerage (R). It has catapult knobs (KZ) and antennae (AN) as well as counter-pressure housing (GD). Around this core, a rim rotates which has jets (D) on its upper and lower side, plus fuel chambers (DB). The roller bearing is shown by the letter L. The launching occurs at a sharp angle in the manner of a discus throw; the revolutions per minute of the rim probably amount to 22,000. The jets on the bottom of the rim serve to propel the disk vertically upwards; lateral steerage results from switching on and off various jet groups.
[Appended sketch follows:]