The next few postings will cover an interesting system of the L-1011 which is the Delco Carousel Inertial Navigation System. This system was not only used on the L-1011, however, most long range 1011s ended up equipped with the Delco Carousel system. The Delos Carousel system also has a really neat old computer interface.
In general, however, Inertial Navigation Systems (INS) are a spin off of the ballistic missile. They are highly compact, accurate, reliable and virtually automatic. The heart of the system is a cluster of accelerometers mounted on a gyro-stabilized platform. Acceleration signals are fed to a specialized computer that converts the signals to vectors in both north-south and east-west directions.

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