How submarines see underwater?

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Lorenzo Gibson asked a question: How submarines see underwater?
Asked By: Lorenzo Gibson
Date created: Sun, Jul 18, 2021 11:06 AM
Date updated: Sun, Jan 23, 2022 11:17 AM

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Top best answers to the question «How submarines see underwater»

  • When on the surface, a sophisticated global positioning system (GPS) accurately determines latitude and longitude, but this system cannot work when the submarine is submerged. Underwater, the submarine uses inertial guidance systems (electric, mechanical) that keep track of the ship's motion from a fixed starting point by using gyroscopes.

What are the names of submarines?

  • There are three major types of submarines in the United States Navy: ballistic missile submarines, attack submarines, and cruise missile submarines. All submarines in the U.S. Navy are nuclear-powered.

FAQ

Those who are looking for an answer to the question «How submarines see underwater?» often ask the following questions:

🌊 Are submarines all underwater?

A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability… Submarines were first widely used during World War I (1914–1918), and are now used in many navies large and small.

🌊 Can submarines comunicate underwater?

U.S. Navy submarines use a specialized telephone system to communicate underwater. It works much like an AM radio, except that it transmits and receives sound waves instead of transmitting and receiving radio waves. Similar to land-based systems, underwater telephone systems use microphones and audio amplifiers.

🌊 Do submarines fly underwater?

Aircraft use lift from their wings to stay aloft, while submarines operate like underwater balloons, adjusting their buoyancy to sink or rise… “Submarines cannot fly,” he says, “but seaplanes can submerge.” This was the thinking behind what was probably the first stab at a flying submarine.

Your Answer

We've handpicked 24 related questions for you, similar to «How submarines see underwater?» so you can surely find the answer!

What do submarines fire underwater?

It's fired by a steam cannon. First, an explosive charge flash-vaporizes a tank of water into steam. As the pressure of the expanding steam drives the missile out of its launch tube, it provides enough momentum for the weapon to clear the water's surface.

What do submarines go underwater?
  • Once the diesel engine has fully charged the batteries, the sub can switch off its engine and go underwater, where it relies entirely on battery power. Early military submarines used breathing tubes called snorkels to feed air to their engines from the air above the sea, but that meant they had to operate very near the surface where they were vulnerable to attack from airplanes .
What makes submarines float underwater?

air pressure because if air is lighter than water and you are trying to get a tank full of water to sink you would need a whole lot of air so by compressing lots of air into the tank it makes the tank heavy so it sinks

Why are submarines faster underwater?
  • Are subs faster underwater? A submarine meets more resistance under-water as opposed to on the surface, as on the surface a small fraction of the hull surface is meeting against air resistance instead of water resistance. This does not, however, mean that a submarine travels faster on the surface.
How can nuclear submarines travel underwater?

Just like diesel submarines travel underwater, but for much longer periods as the nuclear engine does not consume the oxygen in the air. The older diesel submarines were limited to running on batteries or using a schnorkel to get air for the engines when underwater, so usually they traveled on the surface like regular ships only submerging to prepare for an attack with torpedoes on passing enemy ships. The nuclear submarines can practically travel underwater forever, until they need to be resupplied with food for the crew.

How do military submarines travel underwater?
  • Military submarines travel underwater in an environment of total darkness with neither windows nor lights. Operating in stealth mode, they cannot use their active sonar systems to ping ahead for underwater hazards such as undersea mountains, drilling rigs or other submarines.
How far can submarines dive underwater?

Straight to the bottom of the ocean.

How fast can submarines go underwater?
  • How Fast Can a Submarine Go? This is classified as well. However, U.S. nuclear-powered submarines can go faster than 23 miles per hour, which is 37 kilometers per hour or 20 knots (nautical miles per hour) underwater.
How fast do submarines travel underwater?
  • How Fast Can a Submarine Go? This is classified as well. However, U.S. nuclear-powered submarines can go faster than 23 miles per hour, which is 37 kilometers per hour or 20 knots (nautical miles per hour) underwater.
How long do submarines spend underwater?

The limits on how long they can stay underwater are food and supplies. Submarines generally stock a 90-day supply of food, so they can spend three months underwater. The diesel-powered submarines (not now used by the United States Navy) had a limit of several days submerged.

How long do submarines stay underwater?

The limits on how long they can stay underwater are food and supplies. Submarines generally stock a 90-day supply of food, so they can spend three months underwater. The diesel-powered submarines (not now used by the United States Navy) had a limit of several days submerged.

How can submarines detect other underwater objects?

Underwater objects are usually tracked by means of the sounds given off by an object. For a submarine, sound is generated largely by its propellers as they churn through the water. However, the engines and some other parts also generate noise. These noises are detected by a submarine's sonar (sound detection and ranging equipment).Objects can also be located by reflected sound waves, known as "active sonar". A "ping" or sound wave is generated into the water. Any differences in the returning sound indicates the location of an object or structure underwater. This technique can also be used to map the ocean floor.

How do submarines stay underwater so long?
  • The Navy's nuclear-powered submarines can stay submerged for long periods of time. Air isn't a problem as their make their own oxygen and keep the air clean. The limits on how long they can stay underwater are food and supplies. Submarines generally stock a 90-day supply of food, so they can spend three months underwater.
How far can most submarines go underwater?
  • Scuba divers can work at 100 meters if the are very cautious rising to the surface. At 150m depth, 99% of light has been absorbed by clear seawater. A nuclear submarine can dive to a depth of about 300m. This one is larger than the research vessel Atlantis and has a crew of 134.
How fast can us submarines go underwater?

How Fast Can a Submarine Go? This is classified as well. However, U.S. nuclear-powered submarines can go faster than 23 miles per hour, which is 37 kilometers per hour or 20 knots (nautical miles per hour) underwater.

How long can diesel submarines stay underwater?
  • The limits on how long they can stay underwater are food and supplies. Submarines generally stock a 90-day supply of food, so they can spend three months underwater. The diesel-powered submarines (not now used by the United States Navy) had a limit of several days submerged.
How long do navy submarines stay underwater?
  • The limits on how long they can stay underwater are food and supplies. Submarines generally stock a 90-day supply of food, so they can spend three months underwater. The diesel-powered submarines (not now used by the United States Navy) had a limit of several days submerged.
How long do nuclear submarines stay underwater?
  • Therefore, both nuclear and diesel submarines must resurface in order to communicate with their home base, and receive orders and/or convey vital information. A nuclear submarine can stay and operate underwater for a couple decades, so long as it’s adequately stocked with enough supplies and ration for its onboard crew to survive that long.
What is underwater telephone which submarines use?
  • An underwater telephone sometimes called Gertrude is also used to communicate with submersibles. VLF radio waves (3-30 kHz) can penetrate seawater to a few tens of meters and a submarine at shallow depth can use them to communicate. A deeper vessel can use a buoy equipped with an antenna on a long cable.
Are there any submarines that have flags underwater?
  • Answer Wiki. , 9.5 years submarine weapons/sensors, most US sub types. No. There is no reason to have a flag underwater. Submariners actually remove or convert everything possible that is on the surface of a submarine to reduce water resistance, reduce noise and increase speed.
How long do us navy submarines stay underwater?

The limits on how long they can stay underwater are food and supplies. Submarines generally stock a 90-day supply of food, so they can spend three months underwater. The diesel-powered submarines (not now used by the United States Navy) had a limit of several days submerged.

How long modern non nuclear submarines stay underwater?

How long can an average submarine stay under water?

  • Submarines generally stock a 90-day supply of food, so they can spend three months underwater. The diesel-powered submarines (not now used by the United States Navy) had a limit of several days submerged. They couldn't run the air-breathing engines while fully submerged and had to rely on battery power and electric motors when underwater.
How nuclear submarines stay underwater for so long?

Theoretically, a modern nuclear submarine can stay submerged indefinitely because its on-board water distillation systems makes oxygen from ocean water (and also desalinates water for drinking). It only needs to surface for taking on food and other supplies when they run out.

Was an unidentified craft pinned underwater by submarines?
  • In it he claims, without any evidence, that "a few years ago an unidentified craft was underwater and pinned against the North Atlantic coast by multiple nuclear attack submarines for over a week." Then a story that first made its rounds in 2017 hit social media again just last week.