I

International Traffic in Arms Regulations. ITAR is a set of [...]

Intelligence, Surveillance, Reconnaissance

Generally used to describe swath-sounding sonar techniques that use the [...]

Inertial Navigation System. An INS is a navigation aid that [...]

Inertial measurement unit is an electronic device that measures and reports [...]

Inspection, Maintenance, Repair. Refers to the inspection, maintenance and repair [...]