Autonomous Knifefish minesweeper goes to sea

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Knifefish, an autonomous minesweeping vessel being developed for the US Navy, has successfully undertaken tests in the waters off the coast of Boston.

Led by General Dynamics Mission Systems, the Knifefish programme is intended to replace the dolphins and sea lions that the US Navy has used to detect mines since the 1960s. The propeller-driven vessel is a derivative of Bluefin Robotics’ Bluefin-21, which was used in the search for the missing Malaysian Airlines Flight 370 in the Indian Ocean. General Dynamics Mission Systems acquired Bluefin Robotics in 2016.

Knifefish’s capabilities were tested in a simulated minefield in Massachusetts’s waters. Using low-frequency broadband synthetic aperture side-scanning sonar, the unmanned undersea vehicle (UUV) was able to detect and classify potential mines at a variety of depths, including mines buried beneath the seabed.

“The information and situational awareness Knifefish will deliver to sailors is a quantum leap in clarity and accuracy over other mine-hunting systems currently used by the navy,” said Carlo Zaffanella, vice president and general manager of Maritime and Strategic Systems for General Dynamics Mission Systems.

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