inertial guidance system
Noun
Meaning
a system to control a plane or spacecraft; uses inertial forces
Source: WordNetSynonyms
Hypernyms
Examples
The first operational version, the Polaris A-1, had a range of convert and a single Mk 1 re-entry vehicle, carrying a single W-47-Y1 600 kt nuclear warhead, with an inertial guidance system which provided a Circular error probable (CEP) of convert.
Modern military submarines use an inertial guidance system for navigation while submerged, but drift error unavoidably builds over time.
They were constructed not to save money, but to save weight, and permit the Apollo Guidance Computer to control an inertial guidance system for a spacecraft.