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What was a primitive type of passive sonar system first introduced aboard submarines in 1917?
Wiki User
∙ 11y ago
hydrophones.
Wiki User
∙ 11y ago
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Do submarines have 4 torpedoes?
No - most modern submarines, depending on type, have between 15 and 25 torpedoes aboard.
Can girls be on a submarine?
Females have been riding submarines for many years, but primarily only as riders (e.g., Contractors, Intelligence analysts, etc.). Up until recently, females serving aboard U.S. Navy submarines was restricted - however, with recent changes in policy, female officers will begin serving aboard FBM submarines within the next few years. Most navies with nuclear submarines (e.g., Royal Navy) don't allow women to serve aboard submarines due to the unique health risks that women are exposed to if serving aboard for long periods of time.
Can girls be a submarine?
Females have been riding submarines for many years, but primarily only as riders (e.g., Contractors, Intelligence analysts, etc.). Up until recently, females serving aboard U.S. Navy submarines was restricted - however, with recent changes in policy, female officers will begin serving aboard FBM submarines within the next few years. Most navies with nuclear submarines (e.g., Royal Navy) don't allow women to serve aboard submarines due to the unique health risks that women are exposed to if serving aboard for long periods of time.
Why don't you suffocate in a submarine?
Submarines have air systems aboard that add oxygen (O2) and remove carbon dioxide (CO2) from the atmosphere aboard. This keeps the crew from suffocating.
Are women allowed on submarines?
It depends on the real question. If meant literally, then yes, women are allowed on submarines. They can visit some submarines. If the question is, "Are women allowed to serve/work on submarines?" then it depends on the country. In the Royal Navy (UK) they are not allowed to serve at present. The United States, however, is gearing up to allow some women officers to serve aboard U.S. Navy nuclear submarines.
Why can't submarines stay too long under water?
Modern nuclear submarines have years of power in their reactor cores, and support equipment supplies water and keeps the air clean. There are, however, limits to the amount of provisions that can be stored aboard, and that limits time under water.
What does the term or acronym SEALOL mean in respect to the British Navy Submarines?
SEALOL is the brand name for a group of industrial seals used on both RN and US submarines. Originally patented and manufactured for years by EG&G in Warwick, RI, the company sold the business to the John Crane company.Seals of every type are used in many areas aboard submarines, from compressors to water seals, hydraulics, etc. There are few systems aboard a submarine that don't require some type of seal.The original Patent description for the SEALOL seal is linked below.
What was the benefit of the separate main ballast and trim tanks that were first introduced aboard the USS Holland?
Improved control of the submarine
Why did we the people call submarines pigboats?
The term actually is a sailor's nickname, and is derived from the old WWI/WWII submarines. Prior to the advent of Nuclear Power which allowed for unlimited potable water production, submarines carried a limited supply of water to sea with them, and that was primarily used for drinking water and basic sanitation. Luxuries like showers were few and far between, and the cramped, hot living conditions aboard those boats led to some pretty smelly sailors after several weeks. Even today, though there is plenty of water available aboard, the smell from the various chemicals used aboard tends to permeate clothing, leading to its own unique smell among submarine crews.
Are dogs allowed on navy submarines?
Traditionally, dogs have almost always been aboard men of war. Probably almost always un-officially (referred to as: turning a blind eye).
Who was the first President to go underwater in a modern submarine?
It was President Jimmy Carter who served in the U.S. Navy, and aboard submarines. He was a crew member of the nuclear submarine SSN-575, the USS Seawolf.
The reason submarines can detect other underwater objects is largely due to what?
Submarines use sonar to detect other things in the water. Sonar is an acronym for sound navigation and ranging, but there is a bit more to this. Submarines use what is called active sonar and passive sonar. We need to look at it in a bit of detail to see what's up.Contemporary submarines have a active sonar system aboard. This system emits "pings" into the water, and the pings are bursts of sound energy. The sound energy propagates through the water, bounces off things around the submarine, and then returns to the submarine to be picked up and listened to. By "pinging" on things, the submarine can develop a profile of sorts of things around it. The bottom is down there, and there's another submarine over there. Something like that. But active sonar means you can be heard a long way away. Farther away than you can effectively "see" other submarines with that active sonar. Other submarines can "hear you coming" because you are pinging, and can do this before you can hear then with the returned pings. That's bad for the submarine using active sonar.Modern military submarines operate in water that is fairly deep. This means that the submarines don't generally have to worry about hitting anything under the water. As they on patrol, they are listening for other things in the water using their passive sonar array. This array uses the hydrophones to listen to the sounds in the water. These sounds are being made by other ships, other submarines, schools of fish, whales, or whatever else is making "noise" in the water. This is the primary method used by the current military submarines to locate and track other things in the water with them.
