The definitive technical guide to the submarines of World War II, "The Fleet Type Submarine" was originally published in 1946. Originally classified secret, this legendary book has never been available to the public until now. The Fleet Type Submarine uses the Balao-class USS Perch SS313 to explain submarine operating principles, technologies, and systems. It contains numerous diagrams and photos and offers definitions of components and terminology. It provides descriptions of various systems such as ballast tanks, trim, ventilation and steering. It also contains a brief history of the...