THESAURUS
loran
Gyrosin compass, RDF, VAR, astronavigation, automatic electronic navigation, celestial navigation, chronometer, coastwise navigation, compass, consolan, dead reckoning, direction finder, electronic navigation, fix, gyrocompass, gyroscopic compass, gyrostatic compass, inertial navigation system, line of position, magnetic compass, magnetic needle, navar, navigation, needle, omnidirectional range, omnirange, pilotage, plane sailing, point-to-point navigation, radar, radio beacon, radio compass, radio direction finder, radio navigation, sextant, shoran, sofar, sonar, tables, tacan, teleran, visual-aural range