Science: Navarho

Short-range (200 miles) navigational aids such as radio ranges and Omni Range have long been used to guide U.S. aircraft, with pilots switching from one station to another enroute across the country. But when a jet flyer, moving upwards of 600 m.p.h., tunes in on an Omni Range or a radio beam, he is often out of range before he can calculate his position.

Last week the Air Force announced plans for a new, long-range radio station, which, it hopes, will solve the problem. Dubbed "Navarho" ("Nav" for navigation, "a"' for aid, "rho" for the...

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