This amateur 8mm film shows footage of the USS Cachalot setting out to sea. USS Cachalot (SC-4/SS-170), the lead ship of her class and one of the V-boats, was the only ship of the United States Navy to be named for the sperm whale. Her keel was laid down by the Portsmouth Navy Yard. She was launched on October 19, 1933 as V-8 (SC-4) sponsored by Miss K. D. Kempff, and commissioned on December 1, 1933 with Lieutenant Commander Merril Comstock in command. Cachalot was the first submarine to have the Torpedo Data Computer, Arma Corporation’s Mark 1, installed that determined the gyroscope settings for torpedoes. Later, she saw action in World War II after the attack on Pearl Harbor.