The first purely Vril disc - the Vril 1 Jäger (Hunter) was constructed in 1941 and first flew in 1942. It was 11.5 meters in diameter, had a single pilot, and could achieve 2,900 km/hr (1800 mph)! It flew with a metal dome at first, but subsequent test versions had a heavily reinforced glass dome and could seat two crew. Flight endurance was 5.5 hrs. It was planned to arm this craft with two MK-108 cannon plus 2 MG-17 machineguns. Seventeen of these craft were constructed and tested between 1942-44 with 84 test flights. By 1945, they were destroyed with the Allied advance or broken down into components for U-boat tech transfer to Japan. All Vril/Thule/SS Technical Branch disc craft are classified by the USAF until 2020, so something survived intact. One Vril craft was remotely launched into space for dimensional flight testing but never returned! Btw, the pics are pre-Internet and pre- Photo Shop, from book sources.

http://discaircraft.greyfalcon.us/picturesh/vr101.jpg http://discaircraft.greyfalcon.us/picturese/vr120.jpg http://discaircraft.greyfalcon.us/Pictures/vril4.gif http://greyfalcon.us/picturesd/vril700.jpg