acoustic mine उदाहरण वाक्य

This was profligate and ineffectual; used against acoustic mines at Penang, 200 bombs were needed to detonate just 13 mines.
On 26 September, an acoustic mine detonated under " Strahan " s stern while the corvette was pursuing Chinese pirates.
In addition, researchers of PTR developed acoustic mines and a steering system for torpedoes which orientated itself on the sound field of traveling ships.
Significant accomplishments during World War II included the development of greatly improved surface ship and submarine sonar systems, acoustic homing torpedoes, sonobuoys, and acoustic mines.
After the end of the Norwegian campaign, " Veteran " was assigned to counter a threatened German invasion, and was damaged by an acoustic mine.

While " I-6 " laid nine German-supplied acoustic mines in the approaches to Brisbane this minefield was discovered by and neutralised before any ships were sunk.
The last attempt seemed set to be successful until the command ship with Agar aboard,, a Hunt class destroyer, hit an acoustic mine mid-Channel and was severely damaged.
In its first use in the Baltic Sea, 200 of the new acoustic mines sank 47 enemy vessels and the Baltic was closed to shipping for two weeks.
He was engaged in magnetic and acoustic mine-sweeping research and development under the Bureau of Ships in Washington D . C . from October, 1940 to March, 1941.
During the defusal of the acoustic mine, which had lain in the water off Milford Haven Wales for two and a half years, he was also promoted to lieutenant commander.