Enable Sonar rangefinder to measure distance to ground in cm

wing-in-ground-effect amphibious craft; ground-effect vehicle (GEV); wing-in-ground-effect (WIG); ground-effect craft; wingship; flarecraft; ekranoplan

ground battle measure

range finder / rangefinder (RF)

Lightweight Laser Designator Rangefinder (LLDR)

laser rangefinder

laser target designator-rangefinder

radio rangefinder

Airspace Control Measure Request (ACMREQ)

control measure

crisis response measure (CRM)

cross / measure swords

denial measure

passive defense measure

tape-measure mine

unit of measure

protective measure

noise evaluation measure

administrative nonpunitive measure

closing measure

graphic control measure

coercive measure

electronic protective measure (EPM) / electronic counter-countermeasure (ECCM) / electronic protection (EP)

ground distance

ground sampling distance (GSD)

array sonar

dipping sonar

hull-mounted sonar

passive sonar

shipborne sonar

sonar (sound navigation and ranging)

sonar sphere

buried object scanning sonar