JOURFIXE

10 мая 1960 американская АПЛ USS Triton завершила первое в мире подводное кругосветное плавание

http://en.wikipedia.org/wiki/USS_Triton_%28SSRN-586%29

http://en.wikipedia.org/wiki/Operation_Sandblast

The actual circumnavigation took place between 24 February and 25 April 1960, covering 36,335.1 nautical miles (67,292.6 km; 41,813.7 mi) over 60 days and 21 hours. Operation Sandblast used the St. Peter and Paul Rocks, located in the middle of the Atlantic Ocean near the Equator, as the starting point and terminus for the circumnavigation. During the course of the circumnavigation, Triton crossed the Equator four times while maintaining an average speed of advance (SOA) of 18 knots (33 km/h; 21 mph).

Triton returned to the United States, surfacing off the coast of Rehoboth Beach, Delaware, on 10 May 1960.