This is a model of the Messerschmitt P1110 jet fighter, a WW2 design that never left the drawing board. Note that the design was for a very small aircraft with a wingspan of just 6.65 metres (compare to 11.23m for the Spitfire MK V).
It is best printed in resin with its nose to the buildplate.
This model is at a scale of approximately 1:86. For different scales print at a wingspan of:1:32 - 208mm1:35 - 190mm1:48 - 138.5mm1:72 - 93mm