Submarines
Submarines were huge problems during World War One. A submarine is a vessel that can be submerged and navigated under water, usually built for warfare and armed with torpedoes or guided missiles. (Dictionary.com)
Submarines had its first published prescription in 1580 in Great Britain. This prescription came from the pen of William Bourne, an English innkeeper and scientific amateur.
Whether a submarine is floating or submerging depends on the ship's ability or tendency to float in water or air or some other fluid (buoyancy).Buoyancy is controlled by the ballast tanks, which are found between the submarine's inner and outer hulls.
A submarine on the surface has positive buoyancy, which means it is less dense than the water around it. Which then means it will float. At this time, the ballast tanks are mainly full of air.
To submerge, the submarine must have negative buoyancy. Vents on top of the ballast tanks are opened. Seawater coming in through the flood ports forces air out the vents, and the submarine begins to sink.
The submarine ballast tanks now filled with seawater is denser than the surrounding water. The exact depth can be controlled by adjusting the water to air ratio in the ballast tanks. Submerged, the submarine can obtain neutral buoyancy. That means the weight of the submarine equals the amount of water it displaces. The submarine will neither rise nor sink in this state.
To make the submarine rise again, compressed air is simply blown into the tanks forcing the seawater out. The submarine gains positive buoyancy, becomes less dense than the water and rises.- Navy mil
This weapon made it easy to destroy a ship without the enemy knowing about you.
Submarines had its first published prescription in 1580 in Great Britain. This prescription came from the pen of William Bourne, an English innkeeper and scientific amateur.
Whether a submarine is floating or submerging depends on the ship's ability or tendency to float in water or air or some other fluid (buoyancy).Buoyancy is controlled by the ballast tanks, which are found between the submarine's inner and outer hulls.
A submarine on the surface has positive buoyancy, which means it is less dense than the water around it. Which then means it will float. At this time, the ballast tanks are mainly full of air.
To submerge, the submarine must have negative buoyancy. Vents on top of the ballast tanks are opened. Seawater coming in through the flood ports forces air out the vents, and the submarine begins to sink.
The submarine ballast tanks now filled with seawater is denser than the surrounding water. The exact depth can be controlled by adjusting the water to air ratio in the ballast tanks. Submerged, the submarine can obtain neutral buoyancy. That means the weight of the submarine equals the amount of water it displaces. The submarine will neither rise nor sink in this state.
To make the submarine rise again, compressed air is simply blown into the tanks forcing the seawater out. The submarine gains positive buoyancy, becomes less dense than the water and rises.- Navy mil
This weapon made it easy to destroy a ship without the enemy knowing about you.
The Impact of this Weapon
This weapon had a huge impact on the war, It was undetectable therefor no one knew of an attack until they were sunk.This weapon was the cause of the increasing need for sonar. No other vessel of war presented poorer living conditions than that of a U-boat. During this time, U-boat crews were not able to bathe, shave, or change their clothes. It's not hard to imagine how hard it would be to not change or bathe for 6 months of the year if not more.
General duty tasks such as loading torpedoes, standing watch on the bridge, operating deck guns and housekeeping activities were performed by the seamen. Their workload was divided into several shifts, with the seamen working in three 8 hour shifts – one for sleeping, one for regular duties and one for miscellaneous tasks. Specialist crew, such as the two radiomen had three four hour shifts between 8 in the morning and 8 at night, and two six hour shifts during the night. -Life in the U-Boats
This weapon was a great thing to use. Many were jealous of those who had this weapon. When this weapon was used for one of the first times by the Germans in sinking the Lusitania many were angry. When the Germans U- Boat hit that ship 1,198 people died. Of those 1,198 people who died 138 were Americans. This made the Americans enter the war with Germany as an enemy.
General duty tasks such as loading torpedoes, standing watch on the bridge, operating deck guns and housekeeping activities were performed by the seamen. Their workload was divided into several shifts, with the seamen working in three 8 hour shifts – one for sleeping, one for regular duties and one for miscellaneous tasks. Specialist crew, such as the two radiomen had three four hour shifts between 8 in the morning and 8 at night, and two six hour shifts during the night. -Life in the U-Boats
This weapon was a great thing to use. Many were jealous of those who had this weapon. When this weapon was used for one of the first times by the Germans in sinking the Lusitania many were angry. When the Germans U- Boat hit that ship 1,198 people died. Of those 1,198 people who died 138 were Americans. This made the Americans enter the war with Germany as an enemy.
Submarines now
Today there are no u-boats just submarines.
The submarines now are more safe with better living conditions. Theses submarines are bigger and more dangerous being as how they are capable of more things.- Submarine History
Today submarines were used to try to find the missing Malaysia Flight. In the video below it shows how it helped and what it did.
The submarines now are more safe with better living conditions. Theses submarines are bigger and more dangerous being as how they are capable of more things.- Submarine History
Today submarines were used to try to find the missing Malaysia Flight. In the video below it shows how it helped and what it did.
By: Nebraska-Lynn White