USS Thor was a cable repair ship that supported Project Caesar, the unclassified name for installation of the Sound Surveillance System (SOSUS). Originally the Artemis-class attack cargo ship Vanadis (AKA-49) which was briefly in commission from 9 July 1945 to 27 March 1946, it was converted in 1955 after nine years in the reserve fleet.

USNS Albert J. Myer (T-ARC-6) was the second of only two Maritime Commission type S3-S2-BP1 ships built for the US Army near the end of World War II intended to support Army Signal Corps communications cables. She is named for Brig. Gen. Albert J. Myer, the founder of the Signal Corps. The other ship was the William H. G. Bullard, later USS Neptune, which Myer later joined in naval service.