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Submarines
Submarines are naval craft that can operate for an extended period of time underwater. They are used primarily as warships, as well as for business, scientific and other purposes. Submarines are different from submersibles, which only have limited underwater capability.
2,056 Questions
Were there German submarines that would sail around the Atlantic that were called wolf packs?
This is true. A wolf pack was a tactical unit of a group of submarines, not a type of submarine. German submarines were generically called U-boats for Undersea boats - literal German translation.
What year did the Navy accept its first operational submarine?
The U.S. Navy's first real operational and commissioned submarine was the USS Holland (SS-1), launched on May 17, 1897, and commissioned October 12, 1900. It was designed an built by Naval Engineer John Phillip Holland, founder of the famed General Dynamics Electric Boat Division.
Prior to the Holland, the U.S. Navy did accept a submarine on May 1, 1862 that was eventually called the Alligator; however, it never really made it past testing, and was cut adrift at sea and lost during a storm. Its original power source was oars.
Was Germany the only country to have submarines called U-Boats in World War 1?
Well, only the Germans called their submarines U-Boats, this was short for the german word unterseeboot which means submarine.
False
Can you use a periscope in dark?
Yes - in addition to the standard visual frequency spectrum, periscopes also have thermal and IR capabilities.
Is there a submarine in Philadelphia?
Yes, the USS Becuna- she is or was moored alongside the Cruiser Olympia, and for a fee is open to the public, a basic USN Fleet submarine, she appeared ( I was only on her once or twice) to be in better restored shape than the USS Ling ( SS.297() in the Hackensack area. Some of the instruments and controls are under glass to prevent vandalism- this requires some adjustments to the camera- no problem with today:s auto-focus cameras. (but don:t use flash, it will bounce off the glass!)
What is the name of the last US Navy diesel submarine?
They are still in use as trainers for new personnel and certain jobs where they would find the radiation risk unreasonable. all of the deep-dive submarines with one major exception ( the atomic NR-l) are Diesel-electric. the Diesels are used only on the surface and to recharge the batteries- below the waves, we are running on the batteries alone!
Does Mexico use submarines or did they in wars?
No - Mexico's Navy has in modern times been a green-water Navy (coastal patrol/defense), and though they do have destroyers to deal with submarine threats and drug-running submarines, they've never considered the need for military submarines.
Submarines aren't cheap to maintain either; having them in a military inventory is generally based on threat determination, and there just isn't enough of a threat to warrant the cost of them theirs. Modern submarines are built and maintained for a a variety of reasons, but the most important are fleet escort and strategic defense. Mexico has no blue-water Naval fleet to escort, and isn't capable of projecting military power globally, negating any need for strategic defense.
That doesn't mean they don't rely on allied nations to help them out if needed though.
The keel of a submarine (or any ship for that matter) is the backbone of the ship, and its primary structural element. Keels are always laid first during shipbuilding, and structural supports are added over time to it. Laying a keel is typically done with a ceremony.
A keel is similar to a human spine, though it's on the bottom of the ship. Like a spine, it is the key support structure of the vessel; if a keel is broken, the ship usually will lose structural integrity altogether and sink. This is often what happens when ships run aground.
Breaking a ship's keel is also the primary method of how modern torpedoes work. Rather than just impact them, they swim under the ship and explode, creating an air pocket beneath the keel. The bow and stern of the ship cannot support the full weight of the ship in the middle, and the keel breaks, snapping the ship in half.
What can a submarine do that other ships can't?
A submarine can operate under water while other ships cannot, and a submarine can surface after going under water, while other ships can't.
If everything is working correctly, a submarine can surface after sinking, while other ships cannot.
How did the submarines affect world war 2?
1. Caused the British to panic; which it shouldn't have, as they went thru that VERY SAME situation in 1914-1918 (WWI). One would think that a nation that experienced such a strategy, would be experienced enough to deal with it the second time. 2. Caused the creation of American Built CVE's (Carrier Lighter than Air Escort-Escort Carriers). These became hunter-killers in the Atlantic (for the small proportion of escort carriers allotted to the Atlantic) of enemy subs. 3. Caused the creation of DE (Destroyer Escorts)...again US built. These were to hunt down enemy subs as they performed their escorts across the Atlantic. DE's were simply baby Destroyers...smaller ships, smaller guns, smaller crews, easy, quick, and cheap to build.
Name two advantages of generating electricity using nuclear power?
1. Increased electrical generating capacity provides for more complex weapons, environmental, navigation and control systems.
2. A little known fact is that all nuclear powered vessels can redirect their electrical generating capacity to power cities or towns that have lost their electrical power during a disaster.
Name two ships sunk by Germany submarines which led to war with us?
the Lusitania was a british passenger liner that had Americans on board when she was sunk, not sure of another one. the zimmerman note was also a major cause. In it, the Germans attempted to convince Mexico to attack the united states from the south in order to create another front. the US was still neutral at the time the note was sent but they did not stay that way for long.
What is the difference between World War 1 submarines and World War 2 submarines?
Aside from crew habitability improvements, better radios, and greater range with improved battery technology and better, more efficient diesels engines, the biggest advances between the two wars were the snorkel, radar, and sonar.
The snorkel allowed submarines to remain submerged while running their diesel engines and recharging their batteries. This was a huge advantage in remaining undetected, although towards the end of the war, advancements in surface ship search radars cut into that advantage.
Radar fitted on most, possibly all, U.S. submarines greatly improved target acquisition; Dutch and English submarines were also universally fitted with radar by war's end. Japanese and German submarines also used radar, but were not able to deploy enough units to make a difference.
Sonar improved greatly during the war, at least in terms of hydrophone sensitivity (this unit converts pressure changes due to sound to electrical signals), if not actual employment. Much of the advanced R&D for sonar started during the 1950's, and continues to this day.
Crew habitability improvements included refrigeration and air conditioning on newer U.S. boats, also better distilling plants meant more fresh water, enough for the occasional shower and clothes wash. Still, tough to get rid of that unique mix of body odor and diesel, even on today's modern nuclear powered boats.
One might be tempted to think that torpedoes got better, but not really. U.S. torpedoes malfunctioned regularly, though the new battery-powered engines reduced detectability and, thus, limited the target's ability to evade. European and Japanese torpedoes were excellent, and deadly.
In order for a submarine to keep from being crushed at deep depths in the ocean, the round shape is the strongest of any. The reason for this is the arc or arch that the circle makes will support the greatest amount of weight.
Why was the submarine invented?
Because it was needed for war.
Additional answer
Although the above may be correct, I think it's highly probable that it was invented simply because some people felt a desire to make this sort of thing work, without there necessarily being a reason for it at the time. Military uses may only have been thought of much later.
Originally, U-boats were built for Russia during their war with Japan in 1904 (Russo-Japanese War 1904-1905). After the war, the Germans took one of those export models, modified it, and commissioned U1 into their navy in 1906.
The first group of German submarines were built to be sold to Russia during the Russo-Japanese War in 1904. The German Navy's first U1 was taken from that group and commissioned in 1906.
for owls to see underwater your welcome!
Ans 2 - As with many things, war was the cause the submarine was invented for. The first ones were built to place bombs on or under the hulls of enemy ships before the US Civil War. It would be almost 50 years till the first practical torpedoes were used.
What is the name of the first submarine?
That would be the U.S.S Holland. Actually that was the first U.S. commissioned naval submarine. The first actual submarine was the Turtle (invented by David Bushnell) used in the American revolution against the Brittish HMS Eagle. In 1620, a Dutchman named Cornelius Drebbel (who was working for England's James I) built a submarine that was designed by William Bourne, the Brittish mathematician. Only some general plans remain, but their authenticity is not questioned. This undersea boat predates the Holland and Turtle. A link is provided to the Wikipedia article on the history of submarines. Our friends there post knowledge for free.
The first real sub to use a propeller and in war time was the TURTLE. Built by David Bushnell in 1776, and piloted by Sgt. Lee of the Continental Army.
How is a submarine used for pleasure?
Most pleasure submarines are either personal watercraft with limited diving capability, or tourist submarines with limited depth capability.
What were the 28 submarines made at manitowoc wi?
The 28 boats built at the Manitowoc Shipbuilding Company were of the Gato and Balao classes. The first namesake of my old boat, USS RAY (SSN-653) was one of the Gato-class boats built there (USS RAY (SS-271)).
The link below to the MSC has a list of all submarines built there during WWII.
How do stabilizng fins help a submarine move?
Stabilising fins prevent a side to side rolling motion.
Can a conventional submarine carry nuclear weapons?
Absolutely - the Soviet Union was arguably the largest nation to carry nukes aboard Diesel-Electric submarines (both SLBM's and Nuclear Torpedoes). The loss of the DE Soviet Submarine K-12, and the subsequent recovery attempt by the United States (Project Azorian) to recover her nukes and code materials is a good example as to how far we were willing to go during the Cold War to gain an advantage.
Many nations today who still use DE boats often carry nuclear weapons as part of their weapons loadout.
