Design and Operation
The Ben Franklin was built between 1966 and 1968 at the Giovanola fabrication plant in Monthey, Switzerland by Piccard and the Grumman Aircraft Engineering Corporation, then disassembled and shipped to Florida. The vessel is the first submarine to be built to American Bureau of Shipping (ABS) standards. With a design crush depth of 4000 feet (1220 m), it was designed to drift along at neutral buoyancy at depths between 600 and 2000 feet (180–610 m). The 130-ton ship has four external electric propulsion pods, primarily used for attitude trimming. It is powered by tons of lead batteries stored outside the hull. Its length is 48 feet 9 inches (14.9 m), with a beam of 21 feet 6 inches (6.6 m) and a height of 20 feet (6.1 m). Piccard insisted on 29 observation portholes, despite the objections of engineers over the inclusion of potentially fatal weak points.
It began its voyage on July 14, 1969, off Palm Beach, Florida, with Piccard as the mission leader. Accompanied by surface support vessels, it resurfaced on August 14, 1,444 miles (2,324 km) away, 300 miles (480 km) south of Halifax, Nova Scotia, Canada. The Ben Franklin made a few more dives after 1969, including the first deep-sea dive for Dr. Robert Ballard, the discoverer of the wreck of the Titanic.
After running aground on a reef in 1971, the Ben Franklin was sold to Vancouver businessman John Horton, only to languish for nearly three decades on the North Shore. In December 1999, with a sudden decision to either move or scrap the submersible, it was offered to the Vancouver Maritime Museum. After refurbishment the submersible was placed in front of the Museum.
Read more about this topic: Ben Franklin (PX-15)
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