The Focke-Wulf Strahlrohrjäger was a real project, but the designation "Ta 283" quoted for this project is a postwar invention by some aviation writers derived from the drawing label Nr. 283 for the Strahlrohrjäger. The identification of the Super Lorin as a Focke-Wulf project remains suspect as noted by @newsdeskdan, because the only evidence for this plane being designed by Focke-Wulf is the name of Heinz von Halem (designer of the Triebflügel) appearing on the drawing.Re: Unknown Focke Wulf (Tank) bomber of 1944
I thought the Ta283 and variants were all hoaxes? Certainly the basic 283 was. A mishmash of "German" and post war French features, especially Payen-inspired shapes.
The original drawing on which the Paul Malmassari drawing is based along with associated documents can be found at this link:Via Paul Malmassari