Submarines

If you're insane enough, absolutely. I had many friends (well, not MANY) who were originally Surface Navy and volunteered for Submarine Duty.

The Submarine Force is all volunteer; in addition to a relative rating (i.e., not surface specific, like a Storekeeper or Boatswain's Mate) all you need to do is volunteer, and pass the subsequent physical and psychological testing. Aside from the minimum Administrative crew complement (Admin, Medical, Supply), submarine crew ratings are typically specialized in either Engineering, Electrical, or Electronic rates these days. Even the Torpedoman and Quartermaster rates have been combined into Machinist's Mate and Electronic Techs.

Submarine duty is considered hazardous duty, and members are compensated with hazard pay. Most guys I've known who've made the switch have enjoyed it, since the crews are smaller and more tight-knit, and the professionalism is a lot higher as well. Also, in the Submarine Navy, your respect is earned by your ability and qualifications, not necessarily your rank. A senior enlisted who is unqualified in submarines is just a FLOB (Free Loading Oxygen Breather) and is no different than any other rank that isn't qualified. A junior enlisted member who is Qualified in Submarines is considered more valuable. Rank is still respected of course, but within the crew, overall respect must be earned by ability, actions, and hard work; you don't trust anyone who can't cut it during an emergency, since you don't have as much time to respond and contain a problem like surface vessels do. I remember one Master Chief Radioman who made the switch from Surface to Submarines and felt his rank should give him everything without any work. He lasted one deployment - the CO fired him after he lost the respect of the entire crew.

It isn't easy by any means - but I wouldn't trade the experience for anything.

Ballast tank

Modern submarines are designed to go much faster submerged. This design also limits their surface speed capability.

WW1 and WW2 submarines were not considered true submersibles by today's standards. They were essentially surface vessels that had the capability of limited submerged operations. As such, their design and propulsion made them faster on the surface and much slower underwater. Modern submarines are true submersibles in that their only limitation is that of their crews.

Counting warships & merchantman, US subs sunk about 1,000 vessels.

Theodore Roosevelt rode in The Plunger.

It was a French port, and the Germans planned to trap the retreating British forces on the continent. Only an heroic sealift rescued the British Expeditionary Force and most of the French First Army (May 24 to June 4, 1940).

A periscope.

There is no such thing as a safe submarine - there is a specific reason that submarine duty is strictly volunteer, and that submariners get hazardous duty pay, and it's due to the inherent increased dangers of submarine life, be it aboard a nuclear or diesel-electric submarine.

Without getting into classified specifics, there are significant increased health risks for women aboard boats as there are men, but the Navy doesn't specify those risks until the candidate has volunteered (and even then they don't say anything). Assuming you make it through the increased screening requirements (both psychological and physical), even then only about 5% of Navy volunteers are accepted as being qualified for submarine duty. Of that percentage, the average of those with health problems who serve aboard submarines is much higher than that of the regular Navy.

Unlike today's modern submarines, in WWI and WWII, water usage was at a premium, and showers/shaving weren't as critical on a regular basis as the water was for basic survival. Today's submarines have seawater distillers to make potable water - back then fresh water was carried and used and when it ran out it was gone. Beards on submarines were common until 1983 when the Navy changed policy for facial hair, primary reason being interference with safety equipment usage (Emergency Air Breathing masks, etc.). Many submariners (myself included) who had to shave their beards had a hard adjustment since many of their families had never seen them clean shaven before except for pictures.

VERY scary !

American Vice Admiral William S. Sims

During WW2, all the major countries involved used submarines.

None beause they are all sunk in the sea because china are poor :P

Only nuclear submarines can go that long without refueling. The process of converting matter to energy releases a tremendous amount of energy from just a little bit of matter, so a fairly small amount of fuel lasts many years.

2,200,000 Soldiers

97 Warships

40 Submarines.

The actual diving depths for Navy submarines is classified information. However, Deep Submergence Vehicles, such as the bathyscape Trieste, has been submerged to almost 11,000 meters (36,000 feet) in the Marianas Trench, at the time considered the deepest point in the ocean.

Fluid friction is defined as occurring between layers within a fluid that are moving relative to each other. It is a resistance so it does not move a submarine through water.

Cornelius Drebbel was a Dutch inventor who built the first submarine ever.

New york harbor

The first navigable submarine was built by Cornelius Drebbel in 1620 using the 1578 plans of English mathematician William Bourne.

Actually the submarine will not kill any one, but the rockets and torpedo launched from the submarine kill the people.

it didnt

David Bushnell's submersible Turtle, designed by Bushnell and built in Old Saybrook, Connecticut in 1775, was so named because it looked like a turtle due to its shape. It was manually powered, constructed of wood, heavily covered in pitch and reinforced with metal bands. Though it is considered the first submarine used in combat (Revolutionary War) its attacks on British warships were never successful. This was due in large part because it didn't have a way to penetrate the copper cladding around the lower part of British warship hulls. It was sunk by the British while attached to its tender.

The most massed produced US WWII sub was the Gato class, and they were 311 feet long.

sure, they all can reach the bottom... most of the time you don't want them to though.

the ocean varies in depth everywhere depending on where you are. modern subs can't sit at the bottom like old WWII boats could, the new ones have delecate sonar equipment among other things on the bottom. depending on the class, us navy ships can dive to ~2000 ft. but normally operate much higher than that.