WEBVTT

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(Clark) What we do here is

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we teach real-time submarine escape.

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Knowing how subs operate,
it's never in a good place,

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it's never in the Caribbean,

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it's always somewhere you don't wanna be.

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When they first show up, they go through

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a med screening process,

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just to make sure that their
body can undertake pressure.

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Before we even get to
the pressure portion,

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they're taught basic diving physiology,

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what happens to your body
when you're under pressure,

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types of things that can go wrong.

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And then we do a pressure test,

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Put 'em in a chamber with a

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Dive Medical Technician.

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We press 'em down 60 feet and
we leave them for 10 minutes.

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So we bring 'em back up, and it's just to

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make sure that their bodies
can go under pressure,

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cuz some people's
anatomies just can't do it.

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So our main concern

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involves having gas-filled
spaces in your body expanding

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to the point where they rupture.

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So we teach them to never ever

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hold their breaths
during submarine escape.

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If they were to hold their breath,

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that could lead to many
different problems,

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death being the most serious.

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Obviously, we feel this
is a very important

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attribute for them to be learning,

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just as anything else in the school.

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However, this isn't something that we

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encourage them to actually utilize.

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Some students are qualified
for pressurized training.

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Some students are disqualified
for pressurized training.

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And that could just range from

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congestion to sick to light limited duty.

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We don't discourage them at all

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because they're not able to
do the pressurized training.

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They still get a portion of the training

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where they learn the
surface survival skills.

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I feel like this is probably
their funnest moment they have

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in sub school where they get
to kinda relax a little bit,

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go swimmin' in a 90-degree
tank for a few hours.

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But I think the end result is survival

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and staying focused on that task at hand.

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[underwater sounds]