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Submarines
Submarines are naval craft that can operate for an extended period of time underwater. They are used primarily as warships, as well as for business, scientific and other purposes. Submarines are different from submersibles, which only have limited underwater capability.
2,056 Questions
What is Working depth of us navy submarine?
Above ( perhaps Below a better adjective) Eyes Only) in the declassified tech manuals, the Depth gauge, while described is blacked out or the scale of feet is out of focus! hush hush.
What was the submarine that could go around the world without refuling in 1945?
There was no submarine that could do that as early as 1945
What happens if pseudocysts are ruptured?
Pseudocysts are life-threatening when they become infected (abscess) and rupture. Simple rupture of a pseudocyst causes death 14% of the time. Rupture complicated by bleeding causes death 60% of the time.
Why did the Russians fail to rescue the submarine kursk?
because theyre rescue vessels were in poor condition and the rescue subs were badly crewed
Why might a submarine be crushed if it sinks too low in the ocean?
Submarine hulls are subject to sea pressure, and that pressure increases the deeper the submarine goes. There are design limits to the amount of pressure that a hull can take, and if that pressure is exceeded by diving too deep, the hull will fail and will be crushed.
Where is the HL Hunley submarine?
The Hunley is currently undergoing restoration and research in Charleston, S.C., site of her attack on the USS Housatonic.
How long is a submarine shaft?
A submarine's main screw shaft length is totally dependent on the size of the vessel, but in general, anywhere from 30 to 50 feet.
Why do submarines have two periscopes?
There are generally 2 periscopes, the Primary and the Attack scopes.
The Primary periscope is normally used during normal periscope depth observations of the ocean surface (to verify known Sonar contacts and to search for any not picked up by Sonar) and the sky (aerial targets). In addition to optics, it also contains electronic sensors that receive a multitude of signals, including intelligence and navigation.
The Attack scope is a much smaller profile scope, and as such is much harder to detect during submerged periscope depth approaches or observations. It is only used for final surface target range calculation, or in those instances where extreme stealth is required during periscope operations. It also server as the backup scope (everything on a submarine has at least 1 backup system) should the primary become unavailable. Due to its size, it normally doesn't carry the sensory features of the Primary.
Why were submarines called U-boats in Germany?
In Germany we say uuuhhh and U is an abbreviation for Unterwasser (underwater) So in English you would say Underwaterboat
In 1957, the Lawrence Livermore National Laboratory was selected to develop the nuclear warhead for the UGM-27 Polaris SLBM.
When did the first submarine reach the bottom of the ocean?
January 23, 1960. The Trieste made it to the bottom of Challeger Deep which is the deepest point in all the world's oceans.
How does water enter a submarine?
Water enters the submarine by entering through the butthole and leaving from the propellers
Which side used submarines in the civil war?
Both the Union and the Confederate had submarines, but the Confederate used them more often.
Are women allowed to serve on navy submarines?
As of earlier this year (2012) the U.S. Navy qualified its first female submariner, with several more in the pipeline.
However, for now (and likely the foreseeable future), female crew are limited to officers only, since they're afforded their own staterooms and the privacy concerns are reduced considerably.
How long does a submarine work for?
Modern nuclear submarines can work (or patrol) for 3 months or more.
As with all boats, a submarine does not weigh as much as the amount of water it displaces. To go under the water's surface, it pumps water into special tanks (ballast tanks), and to rise up again those pumps force the water out of the ballast tanks and back into the sea.
Ans 2 - Submarines can go deep and rise again by using water ballast and air pressure, as planned by the captain. -Unfortunately, when things go wrong, submarines DO sink.
What submarine feature lies on the eastern margin of the Nazca plate indicates its convergent?
Peru Chili Trench
How role did submarines play in World War 1?
In World War I, the Germans used submarines mainly to create a Submarine Blockade on Britain in an attempt to starve Britain out of the war. This blockade is similar to the Naval Blockade Britain used on Germany, but was not as effective, and Germany stopped halfway through the war. However, towards the end of the war when Germany was losing, they restarted the 'unrestricted submarine blockade', which accidentally sunk an American passenger ship. This angered America, leading to America's participation in the war, and the ultimate defeat of Germany.
Where is the Argonaut Jr submarine located?
A full scale replica of the Argonaut Jr. is in Atlantic Highlands, New Jersey.
How does a Polaris missile stay stable without fins?
Like all ballistic missiles, the old Polaris missiles and the current Trident missiles use internal gyros for stability in flight.
What is Hell and high water submarine name?
The submarine referenced is the USS Bowfin (SS-287) but stock footage and sets were used in the film. The Navy did not allow filming onboard submarines until the end of the Cold War, and even then it's strictly regulated for security reasons. Even submarine crewmembers require permission from the CO to have a camera aboard ship.
