A history of ship usage at Hudson Laboratories is presented. Experience derived from this usage, from the conversion of the USNS GIBBS to a research vessel, as well as from preliminary plans for the conversion of the USS TERROR to a research vessel, is described as it relates to the preliminary design of the T-AGOR-16. A discussion of the preliminary design of the catamaran research vessel and its equipage is presented and terminates with the development of the building specifications.

A system for the electrical detonation in series of a group of charges attached to a taut moored cable in deep water is described. A5 preliminary study of chain detonation as well as the problem of cable damage in the vicinity of shots is included. The accuracy of charge locations for long-range fluctuation studies is discussed, and cable catenaries are examined. (Author).