Intelligent Whale was built on the design of Scovel Sturgis Merriam in 1863 by Augustus Price and Cornelius Scranton Bushnell.
Intelligent Whale submerged by filling water compartments, and expelled the water by pumps and compressed air. It was estimated that it could stay submerged for about ten hours. Thirteen crewmen could be accommodated, but only six were needed to make her operational. The only known trial, reported by submarine pioneer John Philip Holland, was made by a certain General Sweeney and two others. They submerged the boat in 16 feet of water and Sweeney, clad in a diver's suit, emerged through a hole in the bottom, placed a charge under a scow, and reentered the submarine. The charge was exploded by a lanyard and a friction primer attached to the charge, sinking the scow.
Following the failed trial in 1872, Intelligent Whale was put on display at the Brooklyn Navy Yard and remained there until 1968 when she was moved to the Washington Navy Yard where she remained until being relocated to the National Guard Militia Museum of New Jersey in Sea Girt, New Jersey, where she is currently on display.
The U.S. Navy did not accept a submarine for service until the USS Holland was commissioned in 1900.
The 'Intelligent whale' hand cranked submarine, built 1864, on display at Brooklyn Navy Yard on 25 March 1931
1930s MAN STANDING NEXT TO OLD SUBMARINE FROM 1864 THE INTELLIGENT WHALE BROOKLYN NAVY YARD NEW YORK CITY USA
Intelligent Whale on exhibit at the Navy Museum, Washington Navy Yard
New Jersey National Guard Militia Museum in 1999.