WEBVTT
Kind: captions
Language: en-GB

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STEVE RAY: Behind me is the DRIU,
Damage Repair Instructional Unit

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basically a big metal box
which we flood

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It's a mockup ship, so the
internal layout resembles

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pretty much what you'd see on the majority
of Royal Navy ships

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that are in the fleet today.

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Primarily used for practical
damage control training.

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TOM SCOTT: "This is serious kit.
I am... I am really...

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"We're going to have to go in,
repair some holes in the side...

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"and I'm a little bit terrified."

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MATT GRAY:
"It's just normal temperature water.

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"We're going to freeze
when we get in there."

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STEVE RAY: We've got four sections
of the ship, split over three decks.

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We've got complete control over
water levels, smoke and lighting levels,

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We can control pipe damage,
deck and bulkhead splits,

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We can roll the unit up to 15°
either side of upright.

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at a variety of different speeds
to simulate different sea states.

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So today the beginners are going
to be getting just 5° of roll

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which will seem like a lot to them.

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Instructional staff will be getting
the full 15°, to make it harder.

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[SHOUTING]

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MATT: Bloody hell!

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[INDISTINCT ANNOUNCEMENT]

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TOM: The very first thing,
the 120psi breach.

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and it's pointed at us, and the 
very first thing we have to do...

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MATT: You could feel the pressure
from two metres away,

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just from the air it was chucking at you,
never mind the water.

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MELINDA SECKINGTON:
I didn't quite realise how much you'd feel it

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when I went to grab the
wedge bag.

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[WATER SPRAYING]

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STEVE RAY: First hit, Zulu One,
will consist of a small deck split,

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and a large multi-split
in the ship's side.

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First stage leak-stopping on both of those
will be softwood wedges.

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- Ready?
- Ready!

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TOM: Getting pushed under...
who got the breach underneath?

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PAUL CURRY: I got that.
TOM: That was you?

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'Cos I tried that, and I just
could not find the breach.

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PAUL: No. No. It was really tricky.
And the first time I went down,

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I couldn't find it either. I knew it was
between your two shoes,

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could not for the life of me
get the wedge in,

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and all the time I was trying to
be buoyant as possible,

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which is not useful(!)

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STEVE RAY: Anyone in the Royal Navy
that is going to serve on a ship

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will have to complete training
here on the DRIU.

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Intent being, to be able to confidently
enter a flooded compartment,

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carry out first-aid leak stopping,

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be familiar with the equipment
that they're going to be using,

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effect permanent repairs and
remove water from the compartment.

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PAUL: The multi-split.

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TOM: You were up there for a long time, Matt.
You got a lot in there.

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MATT: Lots of hammering,
but as the water's filling up,

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you can't find where the holes are,
because the water goes above where they are.

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TOM: You were up there for... as well?

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MEL: I was pushing.
MATT: Yeah.

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TOM: You had to take all the weight
of Matt pushing against you.

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MATT: Did you see the bit where my foot
started flailing off to the side?

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I couldn't bring it back
under the pressure!

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STEVE RAY: The head of pressure
is similar to what you would see

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a couple of decks
below the waterline.

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So the water pressures, we believe
to be realistic.

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Some of the pipe damage,
we do pump the water in,

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to simulate a high-pressure seawater breach
 or fluid system pipe damage.

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TOM: Wedge!

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PAUL: Props to Tom for actually
splitting a wedge in the heat of the moment.

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MATT: I completely forgot about that!
"But it won't fit!"

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PAUL: That was intense.

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TOM: "Oh yeah, we can do that!"

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[SIREN]

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STEVE RAY: Second hit, you're going
to see a 3-inch rocket hole.

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It's going to be in a particularly
awkward position behind a locker.

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So we're looking to see
somebody inside the locker,

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possibly with teammates
backing them up,

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while they look to get
wedges into that hole.

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ANNOUNCEMENT:
Missile launch detected, brace, brace, brace.

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[SHOUTS AND RUSHING WATER]

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ANNONUCEMENT:
Stand to, carry out blanket search.

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STEVE RAY: We've got a safety number
on the gantry watching the exercise,

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and controlling the exercise.
They've got complete control of

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the water level within the compartment,
so they can make it higher

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if you're doing well,
to make it harder for you,

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or if they're feeling kind,
they can drop the water level.

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They can also remove all the water very quickly
in the event of an emergency.

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They've got direct communications
to the unit driver,

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who's in the driver's cab.

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The driver can turn on and off incidents,

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they have control of
all lighting and smoke levels,

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how much the unit is rolling.

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It's clean water similar to a swimming pool,
so we chlorinate it,

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it's stored in a sump
directly below the unit.

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And then we pump it up to the header tank
prior to an exercise starting.

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TOM: The cupboard! [SPUTTERS] 
We all tried it!

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I've still got water in my ear,
'cos... just full force.

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MATT: I managed to get my head in,
and sort of round

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so then the water's
all here and missing my face.

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But then you can't see anything!

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TOM: The wedges kept diverting
left and right.

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PAUL: I was inhaling water
most of the time,

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so even though I had the wedges
in the right place,

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I got exploded back out of the cupboard
because I forgot to breathe.

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TOM: But then you got it!

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PAUL: Yeah! Eventually.

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TOM: What did you do to make it work?

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PAUL: Wedges on the left hand side
of the incident

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and then push them towards the stream.

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TOM: And it was that kind of
arrowhead formation,

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so you put two in,
then one in the middle,

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hammer it in
and it all widens out?

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PAUL: That's it. And because the wedges
were given to me in that formation

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and then a hammer followed...
TOM: Well done Mel!

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PAUL: It worked!

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STEVE: We're looking for a
second-stage build on the deck split,

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which will just be a vertical shore,

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utilising a rubber, steel and timber
sandwich pack on the deck.

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The importance of
damage control training.

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Ultimately: flooded compartments
will remove buoyancy and stability from the ship,

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too many flooded compartments,
the ship could be lost.

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Of equal importance, there's going to be
equipment in each compartment,

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which directly affects the
fighting effectiveness of the ship.

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Wartime, we need to recover real estate
to allow us to fight the external battle.

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And peacetime, we're looking to maintain
enough buoyancy and stability

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to keep the ship afloat.

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TOM: Controlled conditions, in a simulator,

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it took four of us five attempts to close
a breach at the back of a locker.

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The professionals are in there now,

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they're going to do that and beyond
in five minutes.

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It took us twenty!

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And that was on the easiest levels.

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[SHOUTING]

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TOM: I've seen Royal Navy trainees in there
when I did the recce for this,

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and the trainees... 
it's the working together.

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It's knowing that there is going to be...
'cos we were chaotic!

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There was teamwork in there...

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PAUL: We left an entire
hammer behind at one point.

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TOM: Did we? [LAUGHTER]

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MATT: But we did manage to do it.

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PAUL: They trusted us with hammers...
and we prevailed!

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[LAUGHTER]

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