In the hands of the Smithsonian NASM’s Steven F. Udvar-Hazy Center, The V3 is the only surviving Ho IX (Go 229) airframe. This “versuch” aircraft was larger than the two previous prototypes, modified in various areas to be used as a template for the intended production versions.
Spellbinding cutaway of an astonishing aircraft. Just what the doctor ordered.
Artist: Arthur Bentley.
Aviation Rapture 
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This Ho-IX had two remakes, both single engined drones, and a ‘reverse engineered’ copy, the Lockheed Martin RQ-170 ‘Sentinel’, and a recently presented Russian version. When an RQ-170 fell down in Iran, or Irak, they managed to built one. Aerodynamics of Ho-IX were quite advanced, based in the Ludwig Prandtl ‘Bell shaped distribution of lift’, but structure was old-fashioned, the late 20s or early 30s style, as Horten brothers were sailplane designers. Blessings +
Russell E. Lee’s book “Only the Wing: Reimar Horten’s Epic Quest to Stabilize and Control the All-Wing Aircraft” talks about that, among other things.