Design
The Skipjack's design was based on the successful Barbel-class submarines that were based on the USS Albacore design. The design of the Skipjacks was very different from the Skate-class submarines that preceded the Skipjacks. Unlike the Skates, this new design was maximized for underwater speed by shaping the hull like a blimp. This required that the single screw was aft of the rudders and dive planes. This so called "body-of-revolution hull" reduced her surface sea-keeping, but was essential for underwater performance. Skipjack's hull was also a single hull design, where the pressure hull and outer hull are the same for most of the length of the ship.
The bow planes were moved to the massive sail to cut down on flow-induced noise near the bow sonar array. This design feature would be repeated on all U.S. nuclear submarines until the improved Los Angeles-class submarine. The small "turtleback" behind the sail was the exhaust piping of the auxiliary diesel generator.
The Skipjacks also introduced the S5W reactor to U.S. nuclear submarines. The S5W was used on 98 U.S. nuclear submarines and the first British nuclear submarine, HMS Dreadnought.
The George Washington-class submarines were based on the Skipjack design. The hull of Scorpion was laid down twice as the original hull was redesigned to become the first US ballistic missile submarine George Washington. Also, the material for building Scamp was diverted into building Theodore Roosevelt, which delayed her progress.
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