Page "SOSUS" Paragraph 10

LOFAR ( frequency analysis ) was carried out on the signals from the arrays and paper outputs called lofargrams were produced which were used to help detect and classify contacts.

When the sank in 1963, SOSUS helped determine its location.

In 1968, the first detections of Victor and Charlie class Soviet submarines were made, while in 1974 the first Delta class submarine was observed.