The hull of a submarine must be able to withstand the forces created by the outside water pressure being greater than the inside air pressure. The outside water pressure increases with depth and so the stresses on the hull also increase with depth.

## What was the maximum depth of a ww2 submarine?

660 to 920 feet
World War II German U-boats generally had collapse depths in the range of 200 to 280 metres (660 to 920 feet). Modern nuclear attack submarines like the American Seawolf class are estimated to have a test depth of 490 m (1,600 ft), which would imply (see above) a collapse depth of 730 m (2,400 ft).

### Why do submarines have a maximum depth limit?

The hull of a submarine must be able to withstand the forces created by the outside water pressure being greater than the inside air pressure. The outside water pressure increases with depth and so the stresses on the hull also increase with depth.

What is periscope depth of submarine?

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.

What happens if a submarine goes too deep?

The name is foreboding and fairly self-explanatory; it’s when the submarine goes so deep the water pressure crushes it, causing an implosion. The crush depth of most submarines is classified, but it’s likely to be more than 400 metres.

## 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 far up can periscopes go?

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. The new optronic masts no longer penetrate the hull.

Can a periscope see underwater?

Periscopes allow a submarine, when submerged at a relatively shallow depth, to search visually for nearby targets and threats on the surface of the water and in the air.

What is crush depth for a submarine?

What is crush depth? The name is foreboding and fairly self-explanatory; it’s when the submarine goes so deep the water pressure crushes it, causing an implosion. The crush depth of most submarines is classified, but it’s likely to be more than 400 metres.

## Can your body explode underwater?

The pressure from the water would push in on the person’s body, causing any space that’s filled with air to collapse. (The air would be compressed.) So, the lungs would collapse.

### What is the maximum depth of a submarine?

What is the maximum depth for a submarine? 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). How deep is a submarine at periscope depth?

What is the deepest depth a submarine can go?

Specialized military submarines can go as deep as 1300 meters (4265 feet). A small submarine, the bathyscape Trieste, made it to 10,916 meters (35,813 feet) below sea level in the deepest point in the ocean, the Challenger Deep in the Marianas Trench, a few hundred miles east of the Philippines.

What is the maximum depth of a nuclear sub?

The depth limits of the most known nuclear powered submarines’ depth limits, as follows; Typhoon-class: Test depth 900 m (3,000 ft) Astute-class: Over 300 m (984 ft 3 in) Akula-class: 480 m (1,570 ft) test depth for Akula I and Akula I Improved, 520 m (1,710 ft) for Akula II and III, 600 m (2,000 ft) maximum operating depth

## What is the deepest dive in a submarine?

What is the deepest any submarine has gone? T rieste is a Swiss-designed, Italian-built deep-diving research bathyscaphe which reached a record depth of about 10,911 metres (35,797 ft) in the Challenger Deep of the Mariana Trench near Guam in the Pacific.