The John C. Butler class were destroyer escorts that originated during World War II. The lead ship was USS John C. Butler, commissioned on 31 March 1944. The class was also known as the WGT type from their Westinghouse geared turbine drive. Of the 293 ships originally planned, 206 were canceled in 1944 and a further four after being laid down; three were not completed until after the end of World War II.
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In this Dossier
John C. Butler-class destroyer escort in the context of Blueprint
A blueprint is a reproduction of a technical drawing or engineering drawing using a contact print process on light-sensitive sheets introduced by Sir John Herschel in 1842. The traditional white-on-blue appearance of blueprints is a result of the cyanotype process, which allowed rapid and accurate production of an unlimited number of copies of an original reference. It was widely used for over a century for the reproduction of specification drawings used in construction and industry. Blueprints were characterized by white lines on a blue background, a negative of the original. Color or shades of grey could not be reproduced.
The process is obsolete, initially superseded by the diazo-based whiteprint process, and later by large-format xerographic photocopiers. It has since almost entirely been superseded by digital computer-aided construction drawings.
John C. Butler-class destroyer escort in the context of USS Samuel B. Roberts (DE-413)
USS Samuel B. Roberts (DE-413) was a John C. Butler-class destroyer escort of the United States Navy which served in World War II, the first of three U.S. Navy ships to bear the name.
Samuel B. Roberts was named after Coxswain Samuel Booker Roberts Jr., a Navy Cross recipient, who had been commended for voluntarily steering a Higgins boat towards enemy forces at Guadalcanal, in order to divert fire from evacuation efforts being undertaken by other friendly vessels. The ship was nicknamed the "Sammy B".