navigational aid (NAVAIDs); aid to navigation (ATON)

aid to navigation (ATON)

navigation aids (NAVAIDS)

aids to navigation (ATON)

short distance navigational aid

ATON characteristic

navigational chart

navigational grid

navigational system

navigational situation

Doppler-inertial guidance navigational and attack system

air navigational chart (map)

air navigational instrument

radio navigational aids

junction aid (obstruction aid)

obstruction aid (junction aid)

floating aid to navigation

primary aid to navigation

air-navigation aid

position and navigation unit / position navigation unit (PNU)

aid agency

aid man section

aid station

aid worker

battalion aid station (BAS)

buddy aid

comprehensive aid

disaster aid / relief

emergency aid

first aid facility

first aid kit

first-aid skills

food aid