Submarine

World War II submarine "USS Sea Owl"

A submarine (or Sub) is a vessel that goes under water. Most large submarines are war vessels. Some small ones are used for scientific or business purposes. These are often called "submersibles" and cannot go far or stay long away from base. Some people buy their own to explore under the sea. A submarine is actually a boat, not a ship.

History

In early times, submarines were often powered by hand. This is because boat engines had not been invented yet. They were almost always designed to be used for war. Submarines would try to sink enemy ships by crude methods. These included drilling screws into their wooden hulls. Some tried to blow up a ship. This often destroyed the submarine, too.

Later, during the First and Second World Wars, better submarines were made. Many of these better submarines were created by Germany, called U-boats. The submarines were powered by a diesel-electric system. A diesel motor would be used to turn a generator. The generator would charge a large battery while the submarine was above the water. This power was then used to power the submarine when it went underwater. These submarines were dangerous to enemies. They are hard to see while underwater but it was easy to attack them when they were above the water and recharging. Many navies use larger, more modern diesel submarines.

The First Battle of the Atlantic was the first major battle that was mainly fought between submarines and their enemies. As in later wars, the main jobs of submarines were to enforce blockade and to sink enemy warships. They usually attacked freighters at night, shooting with their guns and then hiding under the water. Sometimes they used their torpedoes, especially against large ships and warships. During World War II The US Navy lost about 52 submarines due to combat and non combat causes.

After World War II better sonar helped the enemies of submarines to find and destroy them. New subs were more streamlined and had no artillery because water dragging against the guns made noise underwater and slowed the subs.

Other Languages
Afrikaans: Duikboot
Alemannisch: U-Boot
Ænglisc: Undersǣbāt
العربية: غواصة
aragonés: Submarín
asturianu: Somarín
Avañe'ẽ: Yga yguypegua
azərbaycanca: Sualtı qayıq
Bahasa Banjar: Kapal salam
Bân-lâm-gú: Chǹg-chúi-théng
башҡортса: Һыу аҫты кәмәһе
беларуская: Падводная лодка
беларуская (тарашкевіца)‎: Падводная лодка
български: Подводница
bosanski: Podmornica
brezhoneg: Lestr-spluj
català: Submarí
Чӑвашла: Шывай кимми
čeština: Ponorka
Cymraeg: Llong danfor
Deutsch: U-Boot
eesti: Allveelaev
Ελληνικά: Υποβρύχιο
English: Submarine
español: Submarino
Esperanto: Submarŝipo
euskara: Itsaspeko
فارسی: زیردریایی
français: Sous-marin
Gaeilge: Fomhuireán
Gàidhlig: Bàta-tumaidh
galego: Submarino
贛語: 潛水艇
ગુજરાતી: સબમરીન
한국어: 잠수함
հայերեն: Սուզանավ
हिन्दी: पनडुब्बी
hrvatski: Podmornica
Ilokano: Submarino
Bahasa Indonesia: Kapal selam
interlingua: Submarino
íslenska: Kafbátur
italiano: Sottomarino
עברית: צוללת
Basa Jawa: Kapal silem
Kiswahili: Nyambizi
latviešu: Zemūdene
Lëtzebuergesch: U-Boot
македонски: Подморница
मराठी: पाणबुडी
Bahasa Melayu: Kapal selam
မြန်မာဘာသာ: ရေငုပ်သင်္ဘော
Nederlands: Onderzeeboot
日本語: 潜水艦
norsk nynorsk: Undervassbåt
Nouormand: Souos-mathîn
occitan: Sosmarin
oʻzbekcha/ўзбекча: Suv osti kemasi
ਪੰਜਾਬੀ: ਪਣਡੁੱਬੀ
پنجابی: پنڈوبی
Patois: Sobmariin
português: Submarino
română: Submarin
Scots: Submarine
سنڌي: آبدوز
slovenčina: Ponorka
slovenščina: Podmornica
Soomaaliga: Gujis
српски / srpski: Подморница
srpskohrvatski / српскохрватски: Podmornica
Basa Sunda: Kapal Selam
svenska: Ubåt
Tagalog: Submarino
татарча/tatarça: Су асты кәмәсе
Türkçe: Denizaltı
українська: Підводний човен
اردو: آبدوز
ئۇيغۇرچە / Uyghurche: سۇ ئاستى كېمىسى
vèneto: Sotomarín
Tiếng Việt: Tàu ngầm
Winaray: Submarino
吴语: 潜艇
ייִדיש: סובמארין
粵語: 潛水艇
中文: 潛艇