Keywords: North Carolina class scheme A.jpg en Scheme A the 32 500-ton fast battleship that began the North Carolina design series Friedman Norman 1985 U S Battleships An Illustrated Design History Annapolis Maryland Naval Institute Press p 246 ISBN 0870217151 OCLC 12214729 Friedman 1985 p 246 <br/> According to p 456 the sketches of alternative designs leading to the North Carolina were taken from 420-6 papers in NHC <nowiki></nowiki>the Naval Historical Center known today as the Naval History and Heritage Command<nowiki></nowiki> U S Navy between 1934 1935 PD-USGov-Military-Navy North Carolina class battleships |