The RV Vema was originally a luxurious private yacht named Hussar (IV), built in 1923 by Burmeister & Wain in Copenhagen. Designed by Cox & Stevens, the vessel featured a wrought iron hull and measured approximately 163.75 feet (49.91 meters) in length. It was a three-masted schooner with a sail area exceeding 20,000 square feet, reflecting its status as a high-performance and opulent vessel. The yacht was crafted for E. F. Hutton and his wife Marjorie Merriweather Post, boasting interiors designed by William Baumgarten & Co of New York. It was notable for its speed, breaking transatlantic records in just under 11 days, and was affiliated with the New York Yacht Club, frequently wintering in Florida with prominent guests. In 1930, Hussar (IV) was sold to Norwegian shipping magnate G. Unger Vetlesen and renamed Vema, a portmanteau of Vetlesen and Maude Monell. During World War II, Vema was donated to the U.S. war effort by Maude Monell, serving as a barracks and training ship for U.S. Merchant Marine cadets and patrolling coastal waters for the Coast Guard. After the war, she was abandoned off Staten Island until salvaged by Captain Louis Kenedy of Nova Scotia. The Lamont Geological Observatory (LDEO) leased and then purchased her in 1953 for $100,000, transforming her into a pioneering oceanographic research vessel. As Vema, she became one of the world's most productive oceanographic ships, circumnavigating the globe and collecting critical data for scientific research. Her missions included sampling seawater, sediment cores, measuring ocean currents, and seismic mapping, which contributed to confirming the continental drift theory. Her extensive career saw her cover over 1,225,000 nautical miles, supporting renowned scientists such as Maurice Ewing and Bruce C. Heezen. Retired in 1981, the vessel was refitted as a cruising yacht named SV Mandalay, operating in the Caribbean. Managed initially by Windjammer Barefoot Cruises until 2008, she was later acquired by Angermeyer Cruises and used for eco-tourism off the Galápagos Islands. As of early 2021, operations ceased due to pandemic impacts and damage sustained to Mandalay. The vessel's transformation from a luxury yacht to a scientific explorer and later a cruise ship underscores her maritime significance.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.