Entwicklungsring Sud Arbeitsgemeinschaft / EWR
Entwicklungsring Süd GmbH was formed of a Bölkow, Heinkel, and Messerschmitt design consortium on February 23,1959 at the suggestion of the Federal German Defense Ministry, to develop a Mach 2 VTOL intercepter. By May 1963 70 flights had been made with VJ 101C research aircraft, which had tilting jet-pods at wingtips. Studies were made for an entirely different VJ 101D fighter. Heinkel withdrew in late 1964, and in July 1965 EWR changed from a consortium into a limited company. There was later an unsuccessful partnership with Fairchild Hiller.