Sentence examples for quiet submarines from inspiring English sources

For the past two years, it has been trying to get permission to deploy low-frequency active sonar (LFAS), a system designed to hunt for very quiet submarines.

Now, in the latest struggle over noisy marine environments, a federal judge has temporarily halted the Navy's plans to use loud low-frequency sonar waves to search for quiet submarines hundreds of nautical miles away.

By some estimates, it has spent an average of about $700 million a year since 1991 on expensive, high-profile acquisitions, including Russian fighter jets, guided-missile destroyers and quiet submarines meant to challenge United States aircraft carrier groups.

The ruling stems from a long-running legal battle between environmental groups, led by the Natural Resources Defense Council, and the Navy, which has argued that mid-frequency sonar is vital to the training of submarine seamen and other crews who now face a new generation of quiet submarines that cannot be detected by traditional passive sonar waves.

Unluckily for Russia's military industry, the war in Chechnya is hardly a show-case for the super-quiet submarines, missiles, or fighter aircraft that it most likes to sell.

Toshiba's image suffered notable damage in the United States after a 1987 scandal in which a unit of the company was implicated in shipping equipment that may have helped the Soviet Union build quieter submarines.

In 1987, Legislator Michael D'Andre initiated a law severing the county's leases for Toshiba copiers after reports accusing a Toshiba subsidiary of selling the Soviet Union equipment used to make quieter submarines.

"This is the great capability of very quiet, conventional submarines".

Those strategies would employ a broader range of tactics and weapons, including computer viruses, naval blockades, increasingly accurate nuclear-tipped missiles and quieter diesel submarines, the report contends.

It has several hundred highly trained special operations troops, excellent mine-clearing equipment and some of the quietest diesel submarines in the world.

It is the latest turn in a lengthy seesaw battle between the military and environmental groups over this so-called midfrequency sonar, intense underwater blasts of sound that the Navy uses to track quiet-running submarines.