One of the mysteries of the English language finally explained.
A system of long-distance navigation in which position is determined from the intervals between signal pulses received from widely spaced radio transmitters.
- ‘The major advantage is its ability to send an automatic Mayday that not only identifies the vessel (by the MMSI) but also gives its location when the radio is connected to a Loran or GPS.’
- ‘Two wires from your GPS or Loran C navigation receiver carry a digital signal that precisely specifies your boat's position.’
- ‘No license is needed for an EPIRB, radar, Loran, GPS, depth finder or CB radio.’
- ‘But you know that Loran signals may drift a bit at dusk and dawn when a weather front approaches.’
- ‘While Loran is operated and maintained by the U.S. Coast Guard, costs are shared with the Federal Aviation Administration because Loran is used by thousands of private pilots.’
1940s: from lo(ng-)ra(nge) n(avigation).
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