- What is the longest a submarine has stayed submerged?
- What is the deadliest submarine in the world?
- What is crush depth for a human?
- How many U boats are still missing?
- Can a submarine flip over?
- How do submarines get air?
- Why are there no windows on submarines?
- Why do submarines come to the surface?
- How long can a World War 2 submarine stay submerged?
- How long can a nuclear submarine go without surfacing?
- How often do submarines surface?
- How long is a submarine?
- How many US subs were lost in ww2?
- Are submarines safe from tsunami?
- What’s life like on a submarine?
- How deep can subs go?
- Who has the best submarines in the world?
- Who has the most submarines in the world?
What is the longest a submarine has stayed submerged?
The longest submerged and unsupported patrol made public is 111 days (57,085 km 30,804 nautical miles) by HM Submarine Warspite (Cdr J.
Cooke RN) in the South Atlantic from 25 November 1982 to 15 March 1983..
What is the deadliest submarine in the world?
Soviet submarine K-222HistorySoviet UnionClass and type:Papa-class submarineType:Nuclear cruise missile submarineDisplacement:Surfaced: 5,197 long tons (5,280 t) Submerged: 7,000 long tons (7,100 t)18 more rows
What is crush depth for a human?
Human bone crushes at about 11159 kg per square inch. This means we’d have to dive to about 35.5 km depth before bone crushes. This is three times as deep as the deepest point in our ocean.
How many U boats are still missing?
A U-boat of this type, listed for decades as being sunk off Gibraltar, was found on the sea bottom about 60 miles off the coast of New Jersey in 1991. According to the definitive website Uboat.org, a total of 50 German U-boats remained unaccounted for after the end of World War II.
Can a submarine flip over?
It is technically possible for a submarine to flip over. … The navy issues restrictions on these submarines on turning these subs at high speeds. however if it did roll over, the submarine was done for. The reason is that a submarines ballast tanks act like an upside down cup in a bathtub.
How do submarines get air?
Oxygen is supplied either from pressurized tanks, an oxygen generator (which can form oxygen from the electrolysis of water) or some sort of “oxygen canister” that releases oxygen by a very hot chemical reaction. … The carbon dioxide is trapped in the soda lime by a chemical reaction and removed from the air.
Why are there no windows on submarines?
No, Navy submarines don’t have windows or portholes so the crew can watch undersea life. Submarines have only periscopes for outside vision, and those are only used close to the surface, a periscope depth (PD).
Why do submarines come to the surface?
When the ballast tanks are filled with air, the submarine rises to the surface because it has positive buoyancy. With water inside the tanks, the sub has negative buoyancy so it sinks deeper into the ocean.
How long can a World War 2 submarine stay submerged?
After 48 hours, it would be unbearable and you would have to surface. The World War II submarine that had the longest possible underwater endurance was the German Type 21. It could stay down for up to 75 hours, which gives you a tad over 3 days.
How long can a nuclear submarine go without surfacing?
This means the submarine has to remain at periscope depth from the surface. The battery also limits the range of conventional submarines – a nuclear powered sub has no curbs on its range because it refuels only every 25 years.
How often do submarines surface?
Thanks to their state-of-the-art, built-in reactors, modern nuclear submarines never have to surface to refuel. When the submarine goes into service, it has all the nuclear fuel (such as uranium) it will need for its projected lifetime, which can extend as long as 33 years.
How long is a submarine?
Typhoon Class submarines have a length of 175m, a 23m beam and a 12m draught. It is powered by two nuclear water reactors, two 50,000hp steam turbines and four 3,200KW turbogenerators. It can sail at a speed of 22.2kt on the surface and 27kt below water.
How many US subs were lost in ww2?
Fifty-two submarines of the United States Navy were lost during World War II.
Are submarines safe from tsunami?
Submarines are relatively unaffected by weather or tsunamis when submerged in deep open waters. … However if a submarine has to go shallow or to periscope depth then conditions on the surface become a major concern. Large enough waves can cause a submarine to be pulled (sucked) up to the surface.
What’s life like on a submarine?
US Navy With deployments underwater typically running 90 days, life onboard a submarine is anything but normal. Cramped quarters are the norm, and sailors must have the right technical know-how as well as determination to spend months underwater at a time.
How deep can subs go?
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. The average depth of the Caribbean Sea is 2,200 meters, or about 1.3 miles. The average depth of the world’s oceans is 3,790 meters, or 12,400 feet, or 2 1⁄3 miles.
Who has the best submarines in the world?
The US Navy currently operates around 40 older Los Angeles class submarines alongside the newer Seawolf and Virginia class boats. These submarines proved to be an exceptionally good anti-submarine platform. First boat of the improved Los Angeles class was commissioned back in 1988.
Who has the most submarines in the world?
Here are the 10 countries with the most submarines:United States (66)Russia (62)Iran (34)South Korea (22)Japan (20)India (16)Turkey (12)Colombia (11)More items…