Search results
Results from the WOW.Com Content Network
Because the H.L. Hunley was made of iron and was submerged for over a hundred years, rust had formed all over the submarine. However, to prevent more rust from forming, the conservators choose to keep the H.L. Hunley submerged in a water tank, instead of exposing it to the oxygen-rich air, until a full conservation plan could be created.
A 16th-century Islamic painting depicting Alexander the Great being lowered in a glass submersible. The concept of underwater transport has roots deep in antiquity. There are images of men using hollow sticks to breathe underwater for hunting at the temples at Thebes, and the first known military use occurred during the siege of Syracuse (415–413 BC), where divers cleared obstructions ...
Each end was equipped with ballast tanks that could be flooded by valves or pumped dry by hand pumps. Extra ballast was added using iron weights bolted to the underside of the hull. If the submarine needed additional buoyancy to rise in an emergency, the iron weight could be removed by unscrewing the heads of the bolts from inside the vessel.
Within 30 minutes, a different, non-nuclear civilian construction group began an assignment to bring Guitarro within a half-degree of trim; this entailed adding water to the forward ballast tanks to overcome a reported two-degree up-bow attitude. Until shortly before 20:00, both groups continued to add water, unaware of each other's activities. [1]
The submarine experienced equipment failure, and sank to the bottom of a 16-metre hole at the bottom of Kiel Harbour. Bauer escaped by letting in water, thus increasing the air pressure, which allowed Bauer and his two companions to open the hatch and swim to the surface. This was the first submarine escape to be witnessed and reported. [2]
The 68-year-old told ABC News that his contacts within “the community” had shared details of the mission with him, a reference to the small and close-knit submersible Manned Underwater Vehicle ...
The crew heard the sound of water entering the aft compartment as Pisces III became inverted and began to sink back to the seabed. The aft sphere was fully flooded with over a tonne of water. [2] [5] [12] At 175 ft (53 m) the submersible jolted to a stop – held at the maximum length of the nylon towline.
A7 was a member of the first British class of submarines, although slightly larger, faster and more heavily armed than the lead ship, HMS A1.The submarine had a length of 105 feet 1 inch (32.0 m) overall, a beam of 12 feet 9 inches (3.9 m) and a mean draft of 10 feet 8 inches (3.3 m).