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COURTESY PHOTO COURTESY PHOTOS
The Imperial Japanese Navy submarine I-401, a submersible aircraft carrier, was discovered by the Hawaii Undersea Research Laboratory in an earlier project, above. HURL has since located an I-400-class carrier.
COURTESY PHOTO This submersible operated by the Hawaii Undersea Research Laboratory discovered the Imperial Japanese Navy submarine I-400 on the seafloor.
COURTESY PHOTO This I-400-class submarine is similar to the one found by HURL in August.