Question: The designers of the Horten H.XVIII also designed the world's first jet-powered flying wing known by what name?
Sentence (from "Horten brothers"): Walter Horten (born 13 November 1913; died 9 December 1998 in Baden-Baden, Germany) and Reimar Horten (born 12 March 1915; died 14 March 1994 in Villa General Belgrano, Argentina), sometimes credited as the Horten Brothers, were German aircraft pilots and enthusiasts.
Relevant evidence: No