Do submarines bump into things?
S—- Happens! Military Technology. Yes they have on occasion have hit things, and they have been hit also. Sometimes they do, just ask the crew of the submarine that hit an underwater mountain about a month ago.
What keeps a submarine from being crushed?
Answer 2: The secret is that the soft body does not attempt to “stand up to” the external pressure. It’s really the pressure DIFFERENCE between inside and outside that crushes the sub.
Can a submarine sit on the ocean floor?
With but one exception, US nuclear submarines do not sit on the sea floor. As has been explained in other answers, too much sand, silt and other debris would be sucked in by the seawater cooling systems and cause a lot of problems. The one exception was the US Navy’s nuclear research submarine, NR-1.
What happens if a submarine goes too low?
If a submarine goes below their crush depth, eventually the pressure is beyond what the hull can handle and the submarine breaks open. The pressure wave immediately killes everyone onboard and the submarine sinks to the bottom.
Do submarines have WiFi?
For cyber-security reasons, the military generally prohibits personal use of military computers and networks. Computer equipment and networks for morale, welfare and recreation (MWR) are isolated from the systems required for the mission. There would be NO allowed personal use of wi-fi or bluetooth within a submarine.
How deep did ww2 submarines go?
World War II German U-boats generally had collapse depths in the range of 200 to 280 metres (660 to 920 feet). Modern nuclear attack submarines like the American Seawolf class are estimated to have a test depth of 490 m (1,600 ft), which would imply (see above) a collapse depth of 730 m (2,400 ft).
Why don’t submarines always avoid underwater mountains?
Well they don’t always avoid underwater “Hills”, as you call them. They are actually underwater mountains. If a US submarine knows precisely where it is, it will never strike an underwater mountain because the United States Navy has the best, most up to date sea charts of any Navy in the world.
Do submarines have sonar?
Most subs have two types of sonar: active and passive. Active sonar sends out acoustic sounds, or “pings,” which can reach thousands of yards. If the ping bounces back, that means it hit an object—like a whale, a ship, or another submarine. But stealth subs often avoid active sonar, since the ping could give away their location.
Why do submarines make noise when they spin?
When the spinning blades reach a certain speed, they create bubbles, which make a lot of noise. One quieting technique is to use lots of blades—most sub props are seven- or eight-bladed. That way, each blade doesn’t have to spin as fast to create the same propulsion.
How do submarines evade detection?
Ballistic-missile submarines are built to evade detection by making as little noise as possible. They move slowly—usually no more than 20 knots. They’re coated in anechoic tile, a rubbery substance that absorbs sound and prevents sonar detection. And nearly every moving part is isolated so that it won’t transmit sound.
https://www.youtube.com/watch?v=W5he2_fJZU4