Crossword clues for Used in navigation. 4 lettersAnswerClueMAPSUsed in navigation.PGUPPC key used in navigationARADNavigator Ron, for whom the Lebanese prisoners were used as bargaining chipsURSAMAJORLights used in navigationLORANDevice used in navigation.PELORUSInstrument used in navigation.RADARNavigation device used since the 1930's.DIRECTIONFINDERDevice useful in navigation, or in discovering the hidden theme in the answers to starred cluesNAUTICALMILEMeasure used by navigatorsSEXTANTNavigational aid used to take a sightLODESTARIt can't be used for daytime navigationGPSNavigation tech that uses satellite infoSONARDolphins use it to navigateTHREADItem used by 13-Across to navigate the 22-AcrossGAILY___ the Troubadour touch'd his guitar.” nyt 1952 GAINSAY Contradict. nyt 1952 GAIT Amble or canter. nyt 1952 GAIT Singlefoot or canter. nyt 1952 GAITS Single-foot, canter, etc. nyt 1952 GAIUS Julius Caesar's first name. nyt 1952 GAL Dame or doll. nyt 1952 GAL Gas station abbreviation. nyt 1952 GAL Liquid measure: Abbr. nyt 1952 GALA Festive. nyt 1952 GALA Highly festive. nyt 1952 GALA Showy. nyt 1952 GALAS Happy holidays. nyt 1952 GALBA Emperor after Nero. nyt 1952 GALE Big blow. nyt 1952 GALE Weather phenomenon. nyt 1952 GALEN Any physician. nyt 1952 GALENTO Joe Louis KO'd him in 1939. nyt 1952 GALES Weather phenomena. nyt 1952 GALL Companion of wormwood. nyt 1952 GALLICO Sports writer turned novelist. nyt 1952 GALOP Dance in duple time. nyt 1952 GALS Purchases at the gas station. nyt 1952 GALUMPH Run in triumph, à la Lewis Carroll. nyt 1952 GALUMPHED Galloped in triumph: Lewis Carroll. nyt 1952 GAM A herd of whales. nyt 1952 GAMA Vasco da ___, Portuguese navigator. nyt 1952 GAMBIT Pawn sacrifice, in chess. nyt 1952 GAME 5,000 points at canasta. nyt 1952 GAME Never-say-die. nyt 1952 GAME Part of a rubber. nyt 1952 GAMER Pluckier. nyt 1952 GAMES The Olympics. nyt 1952 GAMESTERS Poker players. nyt 1952 GAMIN Boy of the streets. nyt 1952 GAMIN Child of the streets. nyt 1952 GAMIN Street urchin. nyt 1952 GAMMA Type of rays used to examine metal for defects. nyt 1952 GAMMAS Greek letters. nyt 1952 GAMMAS Greek letters. nyt 1952 GAMP Dickens character. nyt 1952 GAMP Sairey of Martin Chuzzlewit."