Scientists have accidentally discovered a wrecked super-submarine off the coast of Hawaii that had been missing for more than 65 years.
One of the jewels of the Japanese fleet in the Second World War, it was a technological marvel, and among the largest pre-nuclear submarines ever built.
Yet despite measuring 400 feet (122 metres) long, the “Sen-Toku” class I-400 had remained a mystery to military historians since it was sunk by US forces protecting the Panama Canal.
Divers stumbled across the mega-sub some 2,300 feet beneath the surface of the Pacific Ocean. It was among the first to be able to carry aircraft and could travel one-and-a-half times around the world without needing to refuel.
Jim Delgado, a researcher who was aboard the Pisces V deep-diving submersible which travelled to the wreckage, told the Reuters news agency: “We came upon this as we were looking for other targets… It is like watching a shark at rest.”
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