The idea of a antigravity engine/flying saucer from 1922 caught my attention so I created it solely for that reason P:

"History":

In 1922, research and development of "Flying Discs" started in Germany. Propulsion of the first "Flying Disc" was based on "Implosion Technique".
This craft became known as "JFM" (Jenseits Flugmaschine, i.e. Netherworld Flying Machine).
Design was based on three stacked discs, whereas the top one had a diameter of 6 meters, the moddle one 8 meters and the lowest one 7 meters. In the middle, these discs were connected by a propulsion unit, having a thickness of 1.8 meters and a height of 2.4 meters. Bottom of this propulsion unit was formed as a cone shaped tip with a pendulum for proper stabilisation.
As soon as "JFM" was activated, the top and the lowest discs started to rotate in opposite directions, building up a strong electromagnetic rotation field. Principally, the space produced by this field was to generate its own totally independent "micro-cosmos", including "JFM" and its crew.
This field (during maximum output) would then be completely separated from all known physical influences (i.e. gravitation, electro-magnetics, radiation, any sort of matter), which would allow the craft to move within gravitation - or any other field - without being touched by apparent gravity forces.
Due to data gathered by "JFM", in 1934 the first flight-capable Rundflugzeug (Circular Flying Craft) RFZ-1 (also available by BIRD MODELS) was built.
It is said, that "JFM" was stored at Messerschmitt Factory near Augsburg (Bavaria), where it was destroyed during an Allied air raid.

How to use:

Being only an engine/prototype I only know that it can go up and down something similar to Die Glocke but from 1922, to take off use the throttle and you will be ejected from the base, and to land control the power.

Here the link of some of my creations that I recommend if you downloaded this plane.

RFZ-1 erste dt. Flugscheibe

Viktor Schauberger's REPULSINE

Haunebu Vril Prototype 1