What does zero bubble mean on a submarine?

Bubble: The up or down angle of the boat, with a “zero bubble” being an even keel. The bubble may have to be changed to maintain depth.
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What does down bubble mean in a submarine?

Down-bubble definition

(nautical) Having a downward trim (of a submarine); usually follows the number of degrees.
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What is a zero degree bubble?

THE CONN Short for conning tower, it's the sub's ”driver's seat.” ZERO BUBBLE ”That's like a carpenter's level,” Schiffer explains. ”When you're diving, you angle the ship, like five degrees down bubble, and if you want to level off, you say 'zero bubble.”' But that's only if you have the Conn.
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What is it called when a submarine goes silent?

Silent running is a stealth mode of operation for naval submarines. The aim is to evade discovery by passive sonar by eliminating superfluous noise: nonessential systems are shut down, the crew is urged to rest and refrain from making any unnecessary sound, and speed is greatly reduced to minimize propeller noise.
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Why is it called down bubble?

Etymology. From the bubble of air in the glass tube of the inclinometer, a gauge that indicates the submarine's vertical trim.
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Zero Bubble new Product introduction video: RC Submarines



Why do submarines rig for red?

The human eye is less sensitive to longer wavelengths, so red light is chosen to preserve the night vision of the crew while still allowing them to still see their instrument panels. Submarines switch to red light when it's dark outside and crew members need to use the periscope or go on watch duty.
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How do submarines handle human waste?

Most bigger submarines have something called “Trash Disposal Units”, which are exactly what you think you are. Somewhere in the submarine there is a long tube or a shaft, which has a ball valve separating it from the ocean. Crew members have to assemble canisters from pre-punched galvanized, perforated steel sheets.
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Does it smell in a submarine?

You are probably wondering why I would call this post such thing... Since Submarines remain submerged with a sealed atmosphere they rely on a chemical called Amine to remove the carbon dioxide. This chemical makes everything stink.
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What does Conn mean on a submarine?

The conn, also spelled con, cun, conne, cond, conde, and cund, is the status of being in control of a ship's movements while at sea.
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What does SS stand for submarine?

In the Navy hull classification “SSBN,” the letters “SS” stand for submersible ship, B denotes ballistic missiles, and the N indicates it is nuclear powered.
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What does bubble mean in Navy?

Bubble: The up or down angle of the boat, with a “zero bubble” being an even keel.
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What does 1 MC mean on a submarine?

1 Main Circuit (1MC) is the term for the shipboard public address circuits on United States Navy and United States Coast Guard vessels.
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How shallow can a submarine go?

A nuclear submarine can dive to a depth of about 300m. This one is larger than the research vessel Atlantis and has a crew of 134. The average depth of the Caribbean Sea is 2,200 meters, or about 1.3 miles.
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Why are submariners called bobbleheads?

Usage notes. Originally a derogatory name given by U.S. Navy surface fleet personnel. The term has been adopted by submariners and is used among themselves to refer to any service member serving onboard or qualified in Submarines.
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What is a submarine pilot called?

A helmsman or helm (sometimes driver) is a person who steers a ship, sailboat, submarine, other type of maritime vessel, or spacecraft.
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What do you call the captain of a submarine?

David: The official title for the captain of a submarine is commanding officer or CO or sometimes captain.
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Do they allow smoking on submarines?

The Navy announced today a ban on smoking aboard submarines while they are deployed below the surface after medical testing showed non-smokers suffered effects of second-hand smoke.
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Is it hot or cold in a submarine?

Even though the entire submarine has air cooling facility, only two decks are air-conditioned. The temperature in the rest of the submarine is around 30-35 degrees and the crew works in sweltering heat. The quality of the air is monitored constantly for impurities.
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What do you call sailors on a submarine?

Sailors often refer to submariners as “Sardines.” The term is derived from the packed and claustrophobic atmosphere of a nuclear-powered U.S. Navy submarine. Every inch of a submarine is conserved.
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Why are submarine lights blue?

Normal lighting — Where the submarine control room is fully lit with LED or fluorescent lights. Night lighting — Where the ship dims the lights, or switches to red or blue lights, to help naval officers adjust to darker conditions and maintain healthy circadian rhythms.
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Why ships are painted GREY?

Grey has been the colour of Royal Navy ships for more than a century, with the colour effective at keeping a vessel from being seen in a number of different situations and reducing the clarity of vertical structures. It also allows vessels to blend in with haze and stop easy visual identification.
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Why are ship bridges dark?

Most cruise ship bridges will have shades on any aft facing, and many side facing windows to prevent the ambient light spillage from the side of the ship affecting their vision.
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Can a submarine feel a hurricane?

Can you Feel the Waves on a Submarine When it's Under the Water? Normally, a submerged submarine will not rock with the motion of the waves on the surface. It is only in the most violent hurricanes and cyclones that wave motion reaches as much as 400 feet below the surface.
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Do submarines hit whales?

Most subs have two types of sonar: active and passive. Active sonar sends out acoustic sounds, or “pings,” which can reach thousands of yards. If the ping bounces back, that means it hit an object—like a whale, a ship, or another submarine.
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