Blow the Ballast!

With the purchase of the USS Holland over a 100 years ago, the U.S. Navy's Submarine Force was born. Since those early days, science and technology have drastically improved submarine safety and rescue.

In May 1939, a pioneer of submarine rescue, Swede Momsen, and his innovative technologies saved the sunken submarine USS Squalus and her men during our nation's first deep-sea rescue. That pioneering and innovative spirit continues today as we strive to make the waters as safe as possible for our Sailors and Marines in, on and under the ocean.