USNS Capable (T-AGOS-16) was a Stalwart class Modified Tactical Auxiliary General Ocean Surveillance Ship of the United States Navy. Stalwart class ships were originally designed to collect underwater acoustical data in support of Cold war anti-submarine warfare operations in the 1980s. Ex-USNS Capable is now NOAA Ship Okeanos Explorer. Specifications: Displacement 1,565 t.(lt) 2,535t.(fl) Length 224' Beam 43' Draft 15' Speed 11kts Armament none ComplementUSNS 18 Civilian Mariners, 15 NavyNOAA 46 Crew and Mission Support Propulsion diesel-electric, two shafts, 1,600 hp