USS Delaware (BB-28) was a dreadnought battleship of the United States Navy, the lead ship of her class. She was laid down at Newport News Shipbuilding in November 1907, launched in January 1909, and completed in April 1910. The sixth ship to be named for the First State, Delaware was armed with a main battery of ten guns all on the centerline, making her the most powerful battleship in the world at the time of her construction. She was also the first battleship of the US Navy to be capable of steaming for 24 continuous hours without suffering a breakdown.