usns josiah willard gibbs in 1960s.
after eleven years of inactivity, san carlos taken out of reserve on 11 july 1958 , assigned u.s. navy s military sea transportation service conversion oceanographic research ship mobile ship repair company of mobile, alabama. alterations original design included installation of 6 laboratories, machine shop, darkroom, superstructure deck locker experimental stowage or work, , deep-sea winch capable of handling 40,000 feet (12,000 m) of wire rope , 20 long tons (20 t) of equipment. in modified form, required crew of 48 , accommodate scientific staff of 24.
on 15 december 1958, ship renamed usns josiah willard gibbs, in honor of american scientist josiah willard gibbs , re-designated oceanographic research ship, t-agor-1. on 18 december 1958, placed in non-commissioned service united states naval ship under control of military sea transportation service.
josiah willard gibbs became principal research vessel of hudson laboratories of columbia university, under contract office of naval research. thirteen years provided transportation, accommodations, , working spaces american scientists , technicians investigating physical, chemical, , biological properties of ocean. dedicated research in physics of ocean, particularly propagation of sound, part of efforts office of naval research improve u.s. navy s submarine , anti-submarine warfare capabilities. relatively large size allowed handle heavier weights @ greater depths , provide greater stability delicate scientific measurements other oceanographic research vessel in use. large deep-sea winch , auxiliary propeller gave capability investigate deep ocean trenches scattered throughout world.
in july 1968, josiah willard gibbs surveyed large fracture zone crossing mid-atlantic ridge @ 52°37′26″n 33°11′53″w / 52.624°n 33.198°w / 52.624; -33.198. fracture zone known @ time charlie fracture zone, after united states coast guard s ocean weather station charlie @ 52°45′n 35°30′w / 52.750°n 35.500°w / 52.750; -35.500. proposed fracture zone renamed gibbs fracture zone after ship, since fracture zones named research vessels. fracture zone referred charlie-gibbs fracture zone. @ 16°35′n 64°00′w / 16.583°n 64.000°w / 16.583; -64.000 in caribbean there seamount named gibbs seamount after ship.
josiah willard gibbs taken out of service on 7 december 1971 , stricken naval vessel register same day.
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