RV Atlantis
PNA "Dr. Bernardo A. Houssay" (MOV-1) is a ketch rigged sail training and research vessel for the Argentine Naval Prefecture. Originally named the RV "Atlantis", she served as the first and main research vessel for the Woods Hole Oceanographic Institution from 1931 to 1966. Several ships, including RV "Atlantis" (AGOR-25) and the (OV-104) were named after "Atlantis". Having sailed over 1,300,000 miles to date, she is the oldest serving oceanographic research vessel in the world. Woods Hole history. "Atlantis" was the first Woods Hole Oceanographic Institution research vessel and the first ship built specifically for interdisciplinary research in  marine biology, marine geology and physical oceanography. The 460-ton Marconi Ketch originally carried a crew of 17 and had room for 5 scientists. Columbus Iselin II, her first master and a major influence in her design, felt that steadiness, silence and cruising range were of greater importance than speed. After her construction was complete, WHOI searched for an appropriate name for the new vessel. Alexander Forbes (1882–1965), a trustee of WHOI, had recently bought a schooner named "Atlantis" from Iselin. Mr. Forbes rechristened his schooner so the new research vessel could be named "Atlantis". Use of a continuously recording  fathometer on "Atlantis" cruise No. 150 enabled Ivan Tolstoy, Maurice Ewing, and other scientists of the Woods Hole Oceanographic Institution to locate and describe the first abyssal plain in the summer of 1947. This plain, located to the south of Newfoundland, is now known as the Sohm Abyssal Plain. Following this discovery many other examples were found in all the oceans. The "A- boat" made 299 cruises and covered 700,000 miles, doing all types of ocean science. Argentine service. In 1966, "Atlantis" was sold to Argentina, refurbished, and renamed "El Austral". She was used as a research vessel by Consejo  Nacional de Investigaciones Científicas y Técnicas (CONICET), crewed by Argentine naval personnel. In 1996, she was transferred to the Argentine Naval Prefecture and renamed the "Dr. Bernardo A. Houssay" (MOV-1). She went through an extensive 3-year overhaul and keel-up refit in 2009 at the Tandanor shipyard in Buenos Aires.