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The steamer yacht Corsair IV, built for J.P. Morgan Jr. in 1930, after its postwar conversion into a cruise ship in the Pacific.


Corsair IV was constructed in Maine at the beginning of the Great Depression for $2.5 million (or about $60 million in today’s currency). Measuring 2,142 gross tons, with a registered length of 300 feet and overall length of 343 feet, the Corsair IV was the largest yacht ever built in the U.S. Designed in the traditional piratical look of Morgan yachts, Corsair IV was long, dark, heavy underneath – paler and suaver in the superstructureThe new Corsair made her debut on September 29, 1947 offering two-week cruises from Long Beach, California, to Acapulco, Mexico. The standard price per person rate averaged $600. Hardly a bargain since the ship’s cruise fare equaled more than a quarter of the 1947 typical U.S. family income. The Corsair, during one of her autumn Mexican Riviera cruises, struck a rock and beached at Acapulco. Her crew and 55 passengers were put ashore in lifeboats. There was no loss of life. Examined by her owners, the former Morgan yacht was determined to be a total constructive loss, and abandoned to Davy Jones’ locker