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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
Differences between a ship and a submarine?
a ship floats on the water and a submarine can go underwater and on top of the water
Can a submarine go to the bottom of the sea?
Define "submarine" and "bottom of the sea".
Submarines are designed for a particular pressure/depth. The designers also incorporate a margin of error, so the actual depth at which the submarine would be crushed by external pressure ("crush depth") is generally marginally greater than its "design depth". Submarines normally operate at a fraction of their design depth (this is called "test depth") under normal peacetime conditions. Different navies use different fractions as the test depth; the German navy specifies a test depth of half the design depth, while the US navy uses 2/3 of design depth.
If the sea floor depth at a particular point is less than the sub's test depth, then they can approach it (though, for various reasons, actually touching it is nearly always a bad idea).
The deepest known point in the ocean is the Challenger Deep in the Marianas Trench, at about 10,916 meters. Two human-manned vessels (one solo craft and one with two occupants) have gotten within a few meters of the bottom there, but both of them were technically "submersibles" rather than "submarines"; they had limited mobility and basically existed to go primarily straight down (and, hopefully, back up) rather than cruise for long distances horizontally. Actual submarines generally have much lower design depths. For example Virginia-class US nuclear attack submarines have a test depth of only about 240 meters (putting their design depth at about 360 meters).
How much does a nuclear submarine cost?
http://americanhistory.si.edu/subs/history/timeline/cost/index.html
In which state was the first nunclear powered submarine built?
The USS Nautilus (SSN-571) was built in Groton CT.
the Germans' launhced the 1st U boat in 1906 and from the German word- U boat-meaning (underseaboot) the meaning explains what type of ship the U boat was like. like a submarine, but even bigger, it's modified karp was 139 feet long, displaced 239 tons, and had a range of 2,000 miles, a surface speed of 11 knots, and a submerged speed of 9 knots, and was joined by it's twin- U-2, in 1908.
Were there submarines in the civil war?
Yes, and all but a few were manually operated./ Most were used by the Confederacy such as the David class ( some steam powered and not truly submersible) The Pioneer and Hunley which have been recovered are presently museum exhibits. The Union had only one submarine, called the Alligator which had a somewhat checkered career and was not a production model, so to speak. as of l875 Czarist Russia floated out a powered sub code numbered A-l . Yes she had a name. I"ll let you figure it out- by the way the very word can be used in a command form for ( Resurface!). Nine letters, begins and ends with A. May she rise again! IRN Anastasia-l.
What is the max depth of nuclear submarine?
Television will tell you the figure (History & Military Channels) but those are the numbers that the military gives them. The actual max depth is classified. Same with aircraft speeds & altitudes. We'll tell you what you "WANT TO HEAR." But it won't be the real thing.
Where did a World War 2 submarine sonar operator work?
In the Control Room; Sonar was very basic then, utilizing only a 2-head hydrophone array, and a very basic display.
How wide is the USS Ohio submarine?
The Ohio-class Trident submarines are 42' at the beam.
That doesn't mean there's more room for crew - it just means there's room to cram more equipment into.
What is the name of the entrance door on a submarine?
they're not called doors, they're called hatches. the enternace hatches are normally called emergency escape hatches.
What are some of the differences between a modern submarine and an older submarine?
Submarines of WWI and WWII vintage were not true submersibles like today's modern submarines. They were surface ships that had limited submergence capability for attack and evasion. Many battles were actually fought on the surface with both torpedo attacks and deck guns.
Modern submarines are true submersibles in every sense of the word, even modern Diesel Electric boats. Nuclear Power has become the preferred method of power generation, and such engineering means a boat's submerged operations is limited only by crew supplies (food, etc.). DE's can remain submerged for weeks today, where in the past they could only remain submerged for hours.
How do submarines control their density?
By their pumps and ballast-tanks: allowing water into the tanks to raise the vessel's density so can submerge, or pumping air into the tanks to displace the water and allow the submarine to surface.
German submarine warfare was heaviest in Ireland and where during World War 1?
Any port around the British Isles was a good hunting ground.
The British Isles are ISLANDS. Anywhere vessels enter those ISLANDS was "shipping traffic", or "shipping lanes"; those were always good hunting areas.
Did Germany use submarines to start world war 1 with the US?
Not exactly...
What you are thinking of is the sinking of the RMS Lusitania, an English passenger line that went from Liverpool, England, to New York City and back again. It was sunk by a German U-Boat roughly a hundred miles the coast of Ireland, as it was headed towards Liverpool (ergo, full of New York passengers). This got the US quite upset.
On top of that, the English strategically timed the release of a dispatch from Germany to Mexico that they had decoded, this was called the Zimmerman Telegram. In the telegram, Germany promised Mexico that if they joined the Central Powers and the Central Powers won, then Mexico would regain all the land lost to America in the Spanish-American War.
It was primarily that combination that caused America to enter the war.
Did the Japanese use Midget submarines?
Yes, they used Midget submarines to attack the harbor bridge. The attack lasted 4 minutes but every shot was well short of it's initial target.
What is Anti submarining ramps?
Anti-submarining ramps don't have anything to do with submarines, I'm afraid.
During a car crash, when a person slides underneath the seatbelt, that is called submarining. The seatbelt slides up onto the stomach, and can cause injury.
An anti-submarining ramp is a ramp built into the seat cushion, underneath the foam padding, that helps to prevent the person from sliding forward on the seat underneath the seatbelt. This keeps the seatbelt in the proper position on the person's pelvis, and helps to prevent injuries to the stomach.
How did people in submarines get electricity?
Originally, a submarine's electrical supply was stored in large banks of batteries. The batteries were charged by generators turned by diesel engines when the submarine was on the surface. If the destroyers and aircraft could keep the sub down long enough, it would 'die' because of running out of power.
Today's submarines generate electricity using steam from the nuclear power plants. This allows them to sever their ties with the surface for extended periods, which allows them to stay submerged for many months.
Why does air pressure have to be regulated in airplanes and submarines?
if it aint regulated you would suffercate
What is the worst thing that could happen on a submarine?
The sub could sink so deep that the water pressure would crush the hull, and all hands would perish.
What was German submarine Lusitania for?
Lusitania wasn't a German submarine, it was an American merchant ship that was sunk by German submarines.
What is the name of someone who drives a submarine?
The best answer I have found so far is:
Classic style names are:
Helmsman and/or Planesman
Or in newer styles it is simply Pilot and Co-Pilot.
