The main advantage of rockets and mortar weapons, such as anti-submarine grenades and anti-submarine rockets, is their rapid response time as they are carried through the air to the target. Once dropped on top of the target, they also have the advantage of not being sensitive to decoys or stealth features.
depth charge, also called depth bomb, a type of weapon that is used by surface ships or aircraft to attack submerged submarines.
Helicopters are rapidly deployable from vessels and are out of range of torpedoes launched from submarines. They are fitted with sophisticated sensors and armed with torpedoes and missiles that can track and hunt down adversary boats.
The Vertical Launch Anti-Submarine Rocket (VLA) is the only proven, operational Anti-Submarine Warfare (ASW) weapon that effectively satisfies the surface ship ASW mission.
Most current submarines can survive at a depth of 400 m, so they might survive long pressure spikes created by the waves above them as high as 200–400 m, but not kilometer size waves. Submarines are also designed to withstand short pressure spikes from close explosions of deep charges and even nuclear explosions.
Finally, a submarine can also be destroyed by means of artillery fire and missiles in the rare case that a modern submarine surfaces, but these weapons are not specifically designed for submarines and their importance in modern anti-submarine warfare is very limited.
The submarine had the potential to hide from gunfire and close underwater to fire torpedoes. Early-war destroyers had the speed and armament to intercept submarines before they submerged, either by gunfire or by ramming. Destroyers also had a shallow enough draft that they were difficult to hit with torpedoes.
Countries like the United States and China have built networks of hydroacoustic sensors, which use sonar technology to detect submarines that navigate close to their coastal borders and strategic military locations.
Submarine warfare consists primarily of diesel and nuclear submarines using torpedoes, missiles or nuclear weapons, as well as advanced sensing equipment, to attack other submarines, ships, or land targets.
Typical bullets can travel just a few feet through the water before they're slowed to a stop. CAV-X bullets can reportedly travel 60 meters underwater, and can go through 2 centimeters of steel fired from 17 meters away, indicating that it could even be used to penetrate submarines.
Because standard bullet ammunition does not work well underwater, a common feature of underwater firearms is that they fire flechettes instead of standard bullets. The barrels of underwater pistols are typically not rifled.
A deck gun is a type of naval artillery mounted on the deck of a submarine. Most submarine deck guns were open, with or without a shield; however, a few larger submarines placed these guns in a turret.
Without a doubt, one of the most unusual aircraft “kill” claims of all time is one attributed to the British submarine HMS Umbra, which is said to have brought down an enemy aircraft, using torpedoes, during World War II.
German submarine U-864 was a Type IXD2 U-boat of Nazi Germany's Kriegsmarine in World War II. On 9 February 1945, she became the only submarine in history to be sunk by an enemy submarine while both were submerged. U-864 was sunk by the British submarine HMS Venturer, and all 73 men on board died.
During lock-out and lock-in operations, Navy SEALs and other combat divers enter a specially designed room on top of the submarine, called the "lockout trunk," with their scuba gear. Then, the trunk slowly floods with water to match the outside water pressure.
Australia's nuclear-powered submarines - SSN-AUKUS - will be based on the UK's next generation design that incorporates technology from all 3 nations, including cutting edge US submarine technologies.
In recent years, China has been investing significant resources in advanced underwater sensors, sonar, and anti-submarine lasers technology to better identify and target US submarines.
The Submarine Force is Comprised of More Than 70 Submarines.
In today's Naval Submarine Force, there are 53 fast attack submarines, 14 ballistic missile submarines – which currently carry more than 54% of the U.S.' nuclear deterrent arsenal – and four guided-missile submarines.
The stealth technology weakness of nuclear submarines is the need to cool the reactor even when the submarine is not moving; about 70% of the reactor output heat is dissipated into the sea water.
Changing roles and a lasting legacy
With the sinking of Kongō, Sealion became the only allied submarine to sink an enemy battleship during World War II. By the end of its third war patrol, Sealion had sunk at least 13 ships: six tankers, five freighters, one destroyer, and one battleship.
US Navy aircraft carriers also move fast. According to Forbes 'Fast enough, in fact, to outrun most submarines. Because they can sustain speeds of 35 miles per hour, the Nimitz-class carriers populating the current fleet can move to anywhere within 700-square mile area within 30 minutes.
The aircraft carrier is vulnerable to gunfire, submarine attack, and air attack, and aircraft carriers have been sunk in this war by all three of these means. There is no excuse for an aircraft carrier being sunk by either gunfire or submarine attack and any carrier so sunk was being very poorly operated at the time.
An array of weapons enables submarines to engage their targets and defend themselves against attack. Both boomers and fast attacks carry torpedoes; for SSBNs they provide self-defense, for SSNs they serve as primary weapons. Fast attacks can also lay mines.
The 6-to-12-millimetre (0.24 to 0.47 in) thick armor generally prevented penetration by small arms fire and shell fragments. However, even a near miss from field artillery or an impact from a mortar could easily disable or destroy the tank: if the fuel tank was ruptured, it could incinerate the tank's crew.