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A traditional periscope is up to 60 feet long, so that the hull can remain hidden underwater while the periscope lifts up hydraulically to poke up out of the waves. It provides a direct optical view of the surface, thanks to prisms and lenses.
- How long is a ww2 submarine periscope?
- How many periscopes does a submarine have?
- Do submarines still have periscopes?
- How much is periscope depth?
- How far away can a periscope see?
- How thick is the metal on a submarine?
- How tall can a periscope be?
- What modern technologies could replace the periscope?
- How deep can a submarine go?
- Why do submarines have 2 periscopes?
- How photonics masts will work?
- Did Britain have submarines in ww2?
- How many mirrors are used in periscope?
- Why do Submarines go to periscope depth?
- What is a periscope Class 6?
How long is a ww2 submarine periscope?
A WWII-era submarine is also very small, with a periscope depth of only a dozen or so feet, compared to a modern ballistic-missile submarine, which has a periscope depth of up to 100 or more feet deep. In extreme emergencies, submarines have had to crash dive so quickly that lookouts were left on-deck.
How many periscopes does a submarine have?
Submarines traditionally had two periscopes; a navigation or observation periscope and a targeting, or commander's, periscope. Navies originally mounted these periscopes in the conning tower, one forward of the other in the narrow hulls of diesel-electric submarines.
Do submarines still have periscopes?
Modern submarines are no longer built with the single rotating, one-person-at-a-time periscope that we're used to seeing in the movies. Instead, periscopes aboard the U.S. Navy's Virginia-class subs consist of two 360-degree rotating photonics masts with high-resolution cameras.
How much is periscope depth?
For a sub to receive these radio-frequency or satellite messages, it must stop what it is doing within that time period, extend an antenna and rise to "periscope depth"— approximately 60 feet (18 meters) below the surface, which is shallow enough to use a periscope.
How far away can a periscope see?
Hello Jayn, the distance you can see depends very much on the height of the periscope. Because of the curvature of the earth with the naked eye you can only ever see as far as the horizon. At sea this is around 11 to 12 miles.
How thick is the metal on a submarine?
Making the hull. 4 Steel plates, approximately 2-3 in (5.1-7.6 cm) thick, are obtained from steel manufacturers. These plates are cut to the proper size with acetylene torches.
How tall can a periscope be?
A traditional periscope is up to 60 feet long, so that the hull can remain hidden underwater while the periscope lifts up hydraulically to poke up out of the waves.
What modern technologies could replace the periscope?
The present day periscope is now replaced with a camera mast connected to fibre-optic cable, enabling crew members in the submarine to see images without needing to stand beneath the periscope.
How deep can a submarine go?
It's generally accepted that the maximum depth (depth of implosion or collapse) is about 1.5 or 2 times deeper. The latest open literature says that a US Los Angeles-class test depth is 450m (1,500 ft), suggesting a maximum depth of 675–900m (2,250–3,000 ft).
Why do submarines have 2 periscopes?
Since a submarine can attack while hidden underwater, they need a unique solution to tracking their enemy and that is where the submarine periscope comes in. The early designs of the submarine periscope that were used in World War 2 were very simple by essentially having two telescopes pointing towards each other.
How photonics masts will work?
A photonics mast operates by rising above the water in a manner similar to a telescoping car antenna and provides information through an array of sensors, such as high-definition low-light and thermographic cameras. Images and information can appear on display panels for analysis.
Did Britain have submarines in ww2?
The British U-class submarines (officially "War Emergency 1940 and 1941 programmes, short hull ") were a class of 49 small submarines built just before and during the Second World War. The class is sometimes known as the Undine class, after the first submarine built.
How many mirrors are used in periscope?
A periscope includes two mirrors or reflecting prisms to change the direction of the light coming from the scene observed: the first deflects it down through a vertical tube, the second diverts it horizontally so that the scene can be viewed conveniently.
Why do Submarines go to periscope depth?
A periscope's basic purpose is to allow submarine crews to see objects above the water while the ship remains submerged.
What is a periscope Class 6?
A periscope is defined as an instrument used for observing over, around or through an obstacle or object which is prevented by direct line of sight. It consists of an outer case with mirrors at each end at 45° angle. These mirrors are placed parallel to the surface.
