How submarines work
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7:19
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Tell us something we don't know
steveo1274 3 weeks ago 2
thanks for the info.
makeiteasyable 2 months ago
this is how my boyfriend explained taking a shit after not going for some time :/
SuperDemonkitty 4 months ago 2
nice video , Thumbs up
lonlytheonly 5 months ago
what a brilliant invention
GlassPike 7 months ago
virgina...
TheOveruled 10 months ago
@DavidSIlvercloud Thank you so much ...
camry1971 1 year ago
@TAC8808 Yes, the trim tanks and rapid flood tanks are inside the pressure hull. It is necessary to have external ballast tanks to keep the centre of gravity low... i.e. the tanks with the air have to be shaped to allow the air to be near the top of the hull on the surface or else the sub would flip over on its side. By being double hulled the submarine can be shaped to be very torpedo like. The actual pressure hull is a tube... perfectly round which is the best shape to resist pressure.
DavidSIlvercloud 1 year ago
@camry1971 The submarine has a snorkel periscope... a very large tube that sucks air into the submarine at periscope depth to run the diesel engines. It also serves to refresh the on board air supply. The snorkel has a flap valve in case the sub accidentally gets just below the surface from a wave... to keep water from being sucked in. The exhaust goes out another exhaust periscope when the diesels are running. The sub usually runs the diesel engines when on the surface.
DavidSIlvercloud 1 year ago
@JRock005 Once the ballast tanks are empty the submarine is neutrally bouyant and adjusts its buoyancy with internal trim tanks. Water is very heavy so a few gallons makes a lot of difference.
DavidSIlvercloud 1 year ago