vertical base position finder

vertical base range finder

base junction; rotary collector ring (box); rotary base junction (of a tank); rotary connection; slip ring; traverse rotary base junction

position finder

AN/TPQ (Army-Navy [Marines] Transportable Position finder [radar] Q [counterbattery])

depression position finder

commanding officer's position finder

accurate position finder

instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)

height of vertical base

vertical base

vertical base method

vertical base system

vertical position

position vertical

defense industrial base / military-industrial base

naval base; naval operating base

launching position (missile position)

changeover from travelling position to fire position

position and navigation unit / position navigation unit (PNU)

in position / in-position

azimuth finder

echo depth finder

height finder radar

high frequency direction finder

laser range finder (LRF)

range finder / rangefinder (RF)

laser target-designator and range-finder switching-on (cutting-in) time tabular value

auditory direction finder

azimuth-type range finder

dip range finder

automatic direction finder (ADF)

radio direction finder