Eurocontrol Navigation System Proposal: Brief Details of the VORDAC System Proposed

THE Eurocontrol Association has requested technical proposals for a navigation system capable of meeting provisional specification of April 5, 1961—the system to be capable of operational use in 1965. The low‐frequency hyperbolic area coverage navigation system, HARCO, has been proposed by the Decca Navigator Co., C.S.F. of France, and Telefunken of Germany, with the co‐operation of the Teleregister Corporation of America, and this article deals with the VORDAC system proposed by Standard Telephones and Cables of the U.K., Le Materiel Telephonique of France and Standard Elektrik Lorenz Aktiengesellschaft of Germany, with the co‐operation of Bell Telephone Manufacturing Co. of America and Nederiandsche Standard Electric Maatschappij N.V. of Holland.