A submarine is a specialized watercraft that can operate underwater. Most major navies use submarines. Submarines are also used for marine and freshwater science and for work at depths too great for human divers. Nuclear powered submarines and other large submarines are classed as ships, but are customarily referred to by their crews as "boats". The term U-Boat is sometimes used in English, this comes from the German word for submarine, 'U-Boot', itself an abbreviation for Unterseeboot. Modern attack submarines ar ...

Including:

• Submarine - Non-military submarines and submersibles
• Submarine - Submersibles
• Submarine - Military submarines
• Submarine - Types of military submarines
• Submarine - History of submarines
• Submarine - Early history of submarines and the first submersibles
• Submarine - The first military submarines
• Submarine - Submarines in the American Civil War
• Submarine - Mechanically-powered submarines late 1800s
• Submarine - Late 1800s to World War I
• Submarine - Submarines during World War I
• Submarine - Interwar developments
• Submarine - Submarines during World War II
• Submarine - Modern submarines
• Submarine - Major submarine incidents since 2000
• Submarine - Submarine propulsion
• Submarine - Submarine movies
• Submarine - Notes
• Submarine - General
• Submarine - Articles on specific vessels
• Submarine - Articles on specific submarine classes
• Submarine - Patents

Read more here: » Submarine: Encyclopedia - Submarine

Submarine - Early history of submarines and the first submersibles. A far ancestor for a submarine is probably a 17th century Ukrainian Cossack riverboat called chaika (gull) that was used underwater for reconnaissance and infiltration missions. Chaika could be easily capsized and submerged so that the crew was able to breathe underneath (like in a modern diving bell) and propel the vessel by walking on the bottom of river. Special plummets (for submer ...

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Submarine, Submarine - Non-military submarines and submersibles, Submarine - Submersibles, Submarine - Military submarines, Submarine - Types of military submarines, Submarine - History of submarines, Submarine - Early history of submarines and the first submersibles, Submarine - The first military submarines, Submarine - Submarines in the American Civil War, Submarine - Mechanically-powered submarines late 1800s, Submarine - Late 1800s to World War I, Submarine - Submarines during World War I, Submarine - Interwar developments, Submarine - Submarines during World War II, Submarine - Modern submarines, Submarine - Major submarine incidents since 2000, Submarine - Submarine propulsion, Submarine - Submarine movies, Submarine - Notes, Submarine - General, Submarine - Articles on specific vessels, Submarine - Articles on specific submarine classes, Submarine - Patents

Read more here: » Submarine: Encyclopedia II - Submarine - History of submarines

Until the advent of nuclear marine propulsion, most 20th century submarines used batteries for running underwater and gasoline (petrol) or diesel engines on the surface and to recharge the batteries. Early boats used gasoline but this quickly gave way to diesel because of the greatly reduced flammability of diesel. The diesel-electric submarine became the standard means of propulsion. Initially the diesel or gasoline engine and the electric motor were on the same shaft which also drove a propeller with clutches between each of them. This all ...

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Submarine, Submarine - Non-military submarines and submersibles, Submarine - Submersibles, Submarine - Military submarines, Submarine - Types of military submarines, Submarine - History of submarines, Submarine - Early history of submarines and the first submersibles, Submarine - The first military submarines, Submarine - Submarines in the American Civil War, Submarine - Mechanically-powered submarines late 1800s, Submarine - Late 1800s to World War I, Submarine - Submarines during World War I, Submarine - Interwar developments, Submarine - Submarines during World War II, Submarine - Modern submarines, Submarine - Major submarine incidents since 2000, Submarine - Submarine propulsion, Submarine - Submarine movies, Submarine - Notes, Submarine - General, Submarine - Articles on specific vessels, Submarine - Articles on specific submarine classes, Submarine - Patents

Read more here: » Submarine: Encyclopedia II - Submarine - Submarine propulsion

In common usage, "submarine" means a ship which operates above and below the surface, untethered. Underwater vessels with limited mobility, intended to remain in one place during most of their use, such as those used for rescue, research or salvage purposes are usually called "submersibles". Submersibles are typically transported to their area of operation by surface ships or large submarines and have a very short range. Many submersibles operate on a "tether" or "umbilical", remaining connected to a tender ...

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Submarine, Submarine - Non-military submarines and submersibles, Submarine - Submersibles, Submarine - Military submarines, Submarine - Types of military submarines, Submarine - History of submarines, Submarine - Early history of submarines and the first submersibles, Submarine - The first military submarines, Submarine - Submarines in the American Civil War, Submarine - Mechanically-powered submarines late 1800s, Submarine - Late 1800s to World War I, Submarine - Submarines during World War I, Submarine - Interwar developments, Submarine - Submarines during World War II, Submarine - Modern submarines, Submarine - Major submarine incidents since 2000, Submarine - Submarine propulsion, Submarine - Submarine movies, Submarine - Notes, Submarine - General, Submarine - Articles on specific vessels, Submarine - Articles on specific submarine classes, Submarine - Patents

Read more here: » Submarine: Encyclopedia II - Submarine - Submersibles

Until the advent of nuclear marine propulsion, most 20th century submarines used batteries for running underwater and gasoline (petrol) or diesel engines on the surface and to recharge the batteries. Early boats used gasoline but this quickly gave way to paraffin, then diesel, because of reduced flammability. Diesel-electric became the standard means of propulsion. Initially the diesel or gasoline engine and the electric motor were on the same shaft which also drove a propeller with clutches between each of them. This allowed the engine to d ...

See also:

Submarine, Submarine - Non-military submarines and submersibles, Submarine - Submersibles, Submarine - Military submarines, Submarine - Types of military submarines, Submarine - History of submarines, Submarine - Early history of submarines and the first submersibles, Submarine - The first military submarines, Submarine - Submarines in the American Civil War, Submarine - Mechanically-powered submarines late 1800s, Submarine - Late 1800s to World War I, Submarine - Submarines during World War I, Submarine - Interwar developments, Submarine - Submarines during World War II, Submarine - Modern submarines, Submarine - Major submarine incidents since 2000, Submarine - Submarine propulsion, Submarine - Submarine movies, Submarine - Notes, Submarine - General, Submarine - Articles on specific vessels, Submarine - Articles on specific submarine classes, Submarine - Patents

Read more here: » Submarine: Encyclopedia II - Submarine - Submarine propulsion

In common usage, "submarine" means a ship which operates above and below the surface, untethered. Underwater vessels with limited mobility, intended to remain in one place during most of their use, such as those used for rescue, research or salvage purposes are usually called "submersibles". Submersibles are typically transported to their area of operation by surface ships or large submarines. In general, submersibles differ from submarines in that submersibles typically have shorter range, and operate underwater almost exclusively, h ...

See also:

Submarine, Submarine - Non-military submarines and submersibles, Submarine - Submersibles, Submarine - Military submarines, Submarine - Types of military submarines, Submarine - History of submarines, Submarine - Early history of submarines and the first submersibles, Submarine - The first military submarines, Submarine - Submarines in the American Civil War, Submarine - Mechanically-powered submarines late 1800s, Submarine - Late 1800s to World War I, Submarine - Submarines during World War I, Submarine - Interwar developments, Submarine - Submarines during World War II, Submarine - Modern submarines, Submarine - Major submarine incidents since 2000, Submarine - Submarine propulsion, Submarine - Submarine movies, Submarine - Notes, Submarine - General, Submarine - Articles on specific vessels, Submarine - Articles on specific submarine classes, Submarine - Patents

Read more here: » Submarine: Encyclopedia II - Submarine - Submersibles

Non-military submarines are usually much smaller than military submarines. Tourist submarines work mainly in tropical resort areas or other areas with clear water and good visibility. In 1996, there were over fifty private submarines operating around the world, serving approximately two million passengers that year. Most of these submarines carried between twenty-five and fifty passengers at a time and sometimes made ten or more dives per day. In design, these submarines borrow mainly from research subs, having large portholes for passengers ...

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Submarine, Submarine - Non-military submarines and submersibles, Submarine - Submersibles, Submarine - Military submarines, Submarine - Types of military submarines, Submarine - History of submarines, Submarine - Early history of submarines and the first submersibles, Submarine - The first military submarines, Submarine - Submarines in the American Civil War, Submarine - Mechanically-powered submarines late 1800s, Submarine - Late 1800s to World War I, Submarine - Submarines during World War I, Submarine - Interwar developments, Submarine - Submarines during World War II, Submarine - Modern submarines, Submarine - Major submarine incidents since 2000, Submarine - Submarine propulsion, Submarine - Submarine movies, Submarine - Notes, Submarine - General, Submarine - Articles on specific vessels, Submarine - Articles on specific submarine classes, Submarine - Patents

Read more here: » Submarine: Encyclopedia II - Submarine - Non-military submarines and submersibles

There are probably more military submarines in operation than any other type of submarine, though it is difficult to obtain exact figures because navies are secretive about their submarine fleets. Submarines are useful to a military because they are difficult to locate and, especially when deep below the surface, also difficult to destroy. A great deal of attention in the design of a submarine is devoted to making its travel through the water as silent as possible in order to prevent its detection (sound travels underwater much more e ...

See also:

Submarine, Submarine - Non-military submarines and submersibles, Submarine - Submersibles, Submarine - Military submarines, Submarine - Types of military submarines, Submarine - History of submarines, Submarine - Early history of submarines and the first submersibles, Submarine - The first military submarines, Submarine - Submarines in the American Civil War, Submarine - Mechanically-powered submarines late 1800s, Submarine - Late 1800s to World War I, Submarine - Submarines during World War I, Submarine - Interwar developments, Submarine - Submarines during World War II, Submarine - Modern submarines, Submarine - Major submarine incidents since 2000, Submarine - Submarine propulsion, Submarine - Submarine movies, Submarine - Notes, Submarine - General, Submarine - Articles on specific vessels, Submarine - Articles on specific submarine classes, Submarine - Patents

Read more here: » Submarine: Encyclopedia II - Submarine - Military submarines