The designers of the Horten H.XVIII also designed the world's first jet-powered flying wing known by what name?
Horten H.XVIII: The Horten H.XVIII was a proposed German World War II intercontinental bomber, designed by the Horten brothers with pioneering features such as a flying wing configuration, turbojet engines and stealth characteristics. Horten brothers:  Although they had little, if any, formal training in aeronautics or related fields, the Hortens designed some of the most revolutionary aircraft of the 1940s, including the world's first jet-powered flying wing, the Horten Ho 229.
Horten Ho 229