Johnson and his crew aboard the Balao-class submarine, USS Segundo, were equally surprised to find a similar vessel. The submarines were a part of the Japanese Sen Toku I-400-class submarine ...

When one reads about the exploits of the World War II-era Gato -class United States Navy submarine, USS Barb (SS-220 ), one ...

Japan began construction of the 5,223-ton I-400 class of submarine aircraft carrier. Designed for attacks against the Panama Canal and the U.S. west coast, each carried three dive-bomber seaplanes.

Over 70 years ago, the Imperial Japanese Navy’s prized Sen Toku I-400-class submarine aircraft carriers were captured and scuttled off the coast of Hawaii. Now a team from the University of ...