Submarines

Warships traveled with Merchant ships for protection.

Modern submarines are painted black as it's the easiest color to maintain, provide camouflage from aerial observation while at periscope depth (e.g., no reflecting surfaces), and still give enough profile color while surfaced in daylight to provide visibility to other ships in navigation lanes.

However, under certain wartime conditions, submarines are repainted and camouflaged like other naval vessels with broken paint camouflage schemes to make them nearly impossible to see near the surface or when surfaced.

First-generation ballistic submarines were mostly named after famous Amrericans, which included U.S. presidents. The first in the class was named after President George Washington, which also gave name to the class.

Fleet Ballistic Missile subs bore Presidential names such as George Washington.

Fleet Ballistic Missile subs bore Presidential names such as George Washington.

The shape of the submarine has evolved a bit over time. Use the link below to look at a number of diagrams of submarines. There are thousands on the web, and this will connect you to a whole bunch of them.

I wouldn't let the kids play with it. Seriously, tho, it probably wasn't diseased; it just fell in and drowned. But even if it were sick, there aren't many, if any, diseases that can pass from squirrel to human, and the chlorine or other sanitizers in the pool will take care of any organic matter that entered the pool from the rodent.

Submarines have traditionally been named for fish or other vessels using a particular name. Over the last 30 years, U.S. Submarines (except for the Seawolf class) have been named for States or Cities, or important Navy or political leaders (almost always those who have been generous to the Navy or military in general). State and City identification is an old Navy tradition.

Other countries typically use either fish or names from previous vessels, important historical events (Russia, e.g.), leaders, and also Cities or States / Regions in their own country.

both sides. the Germans and Japanese had subs, so did the Americans and British. the French had some at the beginning of the war, but as it was becoming apparent they would be conquered, they scuttles their fleet, both surface and sub.

A submarine is a machine. It is made of steel. It has people walking around in it, and it runs on nuclear power.

A dolphin is a little whale. It is made of dolphin meat. There are no people walking around in it, and it runs on the fish it eats.


However, both of them navigate by using sonar and reading their depth and magnetic headings.

Yes it can. Every submarine has a maximum depth at which it is safe to operate. If it goes lower than its safe limit, the pressure can crush the hull.

There are no drivable submarines in Just Cause 2, but one is featured during the events of the game.

Meaning a sentence that personifies one?

Example: The old submarine growled reluctantly to life as the officers began to turn the knobs and dials.

Torpedoes were the main weapon. The submarines also had a naval gun that they would use on unarmed ships and many had machine gun mounts as well.

Nuclear Submarines can stay almost indefently for them it is a question of Stores (food).

Diesel Submarines are really not designed for under ice operations.

AIP Subs can stay submerged for prolonged periods depending on the amount of Liquid Oxygen it has.

The Central Powers, mainly Germany pushed the U-Boat Waffe (arm of service) as the cutting edge of their naval powers, certainly not ignoring surface combatants. the Allies seemed to go more for subordinate use of the submarine, as an aid to task Forces rather than attacking them! The Royal Navy (UK) and Imperial Russian Navy pushed the idea of Fleet submarines with high surface speed, which could operate with the main battle fleet- not against it, and presumably scout about for enemy subs and underwater obstacles such as mines. The British K-boats (very accident prone) and Russian A-9 class were typical. Both were steam-electric. The a-9 could do 26 knots on the surface, operating with the task force. at siphon depth (the Russians used this term instead of snorkel)- they could charge the batteries and operate at up to 23 knots. fully submerged-mode they could only limp at 5 knots, but the tactics wee a primary force here. Fleet subs worked with the fleet- not against it. Probably the Germans fielded more U-boats than the Allies and as we have seen tactics were different. Germans favored independent raider units, Allies subordinating the subs to the surface task forces/ different tactics and arrangements. Flood l,3, 5, and 7, to come up (on an a-9 ) the code word was (what else) ANASTASIA!- meaning in the western sense- Blow Negative! or take her up!

A submarine.

The boat used in the movie is a scale model and a set, not a real boat.

the prefix is (sub)

The total change in depth is -144 feet.

Because they need to be able to withstand the pressure of the seawater outside. The deeper a submarine goes - the higher the pressure gets.

The U.S. Navy still maintains the highest number of Submarines (Attack, Ballistic Missile, Guided-Missile), currently at 75.

No, the opposite is true. Sound travels through water much better than air,and the steel hull is very good at transferring sound from water to air, or vice versa.The sound of submarines is detected by AWAKS aircraft many miles away, and even from satellites.

Although that isn't completely incorrect, all submarines employ ways to reduce sound output (called transients). Some common ones are sound dampeners, floating sound mounts, and vibration reducers. All of these devices have the same objective: prevent vibrations and sounds from escaping the hull.

Submarines have always relied on stealth to complete their missions so we wouldn't be very useful if we could be detected by every awacs or fishing trawler passing by. True, some submarines are quieter than others, and any submarine can be given away by a poorly timed transient, but all in all they attempt to minimize sounds passing through the hull.

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Submarines are not sound proof at all. All measures are made to minimize sound transients. Similar to the way your car has motor mounts that are made of rubber to prevent loud sound and vibration from entering the cab a submarine has sound mounts on every piece of equipment that has moving parts. Pipes have small pieces of metal to stop vibrations as fluid passes through it. Motors have mounts. Solid pipes have rubber isolation hoses to separate them from pumps that move back and forth while running. Electronic equipment has sound mounts to prevent hum from entering the deck. Even the deck has its own isolators from the hull. The crew wear soft soled shoes even to reduce the amount of noise they make walking. The outer hull is even cover in rubber tiles to prevent active sonar pings from reverberating off the hull. Something as simple as paint on a sound mount can transmit sound through the hull.

2,439 ships

The term U-boat comes from the German word for submarine, and it was usually used only in reference to German submarines, and not those of Japan or the US.

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The structure (about 30' above the deck) of a modern submarine is known as a Fairwater or Sail. Its primary purpose is to house and protect the primary masts, e.g., Radio, Radar, Snorkel, and Primary/Secondary Periscopes, and allow for water to better stream around them. It typically will also house part of the forward under-ice sonar array, and top-sounding under-ice transducers. It also is where the OOD navigates the boat while on the surface, unless the weather is too inclement to preclude it. Some Russian boats have an enclosed bridge with windows for cases of surface transit in bad weather.

In the days of the old WWII Fleet boats, the upper structure was known as a conning tower; this is because the Captain would literally control (Con) the boat from a separate pressure compartment above the main control room, allowing for shorter periscopes.

The new Virginia (U.S.) and Astute (Britain) class submarines now use Photonics Masts rather than traditional periscopes. This allows for placement of the main control room in spaces not necessarily directly under the Sail as in previous designs. A Photonics Mast is essentially a hi-res camera array mast that can be raised telescopically, similar to a car antenna. Since the mast requires only a hull connection for its cables, there is no need for a large hull penetration like there is with traditional periscopes.