17 times the circumference of the earth!
This 78-m long submarine was built in Le Havre and launched in 1958 before taking up service in 1960. The Espadon was able to dive for up to 5 or 6 days. Its electric engines (we’re talking about a time well before nuclear submarines) insured maximum speed of 16 knots on the surface and 18 knots under water.
During her 25 year long career, the Espadon spent 2,561 days on sea and 33,796 hours diving; it covered 360,547 nautical miles, i.e. the equivalent of 17 times the circumference of the earth! Its home port was Lorient in Brittany. The Espadon was active during the cold war but had never been engaged in military action. At the end of the tour you’ll see the impressive torpedo tubes: they were used regularly, but only for exercise.