In 1969, the USS Guitarro, a nuclear-powered attack submarine under construction, sank at Mare Island Naval Shipyard due to flooding in the forward sonar dome. A Navy investigation blamed shipyard ...

In 2005, the USS San Francisco, a U.S. Navy Los Angeles-class submarine, struck an uncharted seamount at 30 miles per hour, ...

The Chinese Type 091 struggled to meet the same thermal performance standards and sound reduction, as sonar detection is the biggest threat to a submarine's security. The advanced sonar ...

What does it feel like when your submarine launches a ballistic missile ... Dennis Splane "The collision damaged our sonar dome, but fortunately it didn't puncture the hull of the boat." ...

The U.S. Navy's fleet of submarines might be large ... sub after crashing into an underwater mountain -- the bow and sonar dome were lost while the lower half of the rudder sustained damage ...

Remember, when in a submarine one must think up and down as well as left and right. Sonar technicians are able to look at the sound waves and identify their source with extreme accuracy.

A way for submerged submarines to communicate with planes has been developed by researchers at MIT. At present, it is difficult for planes to pick up underwater sonar signals because they reflect ...

The US Navy is outfitting a pair of its submarines with new technologies that will improve its sonar and cut back on the noise of the boat's nuclear-powered steam generator. The new techs are ...

active sonar refers to pinging sounds off objects in the ocean and listening for an echo. The Indonesian navy determined that the submarine disappeared in waters north of the island of Bali.

Since the 1960s, the Ballistic Missile Submarine has been the U.S. Navy’s primary contribution to America’s strategic nuclear “triad” -- which includes U.S. Air Force strategic bombers and ...

The dome of the Cathedral of Santa Maria del Fiore in Florence, Italy, was completed in 1436. Its supple curves and innovative engineering are a monument to the genius of Filippo Brunelleschi.

The forward part of the submarine flooded after both the manhole cover and cofferdam protecting the sonar dome were removed, ...