More Dangerous Than Space | Alien Deep

the Hawaii undersea research lab has two
of only a handful of deep diving
submersibles in the world
the subs were built in the 70s during
the Cold War
but they’ve recently been refitted and
equipped to film in HD
usually the subs dive solo so one is
always available to assist in an
emergency this time both will be in the
water together
if something goes wrong the nearest
rescue vehicles would never get to them
in time we’re pretty much going to outer
space and in a way it’s more dangerous
than outer space if you get a leak in a
spacesuit you can always take a piece of
tape and seal it but a leak in a
submarine under the great pressures of
the abyss is a whole different ballgame
any of the housing is protecting our
cameras our lights fail they go off like
a bomb causing an instant implosion that
sends off a shockwave damaging
everything around it
even a pinprick leak would be a disaster
so every time we do a dive every system
is being tested by this tremendous
pressure that’s trying to get into any
little weak spot on the subs the sub is
a framework of components flotation and
fiberglass panels all bolted to a 7-foot
steel sphere the steel is an inch thick
but pierced by 28 holes for cables if
any one of them fail they’d create a
3,000 pound per square inch water jet
water at that pressure is so destructive
it’s used to slice through metal
at depth it would carve us up to pieces
service riding range 300 meters
each year after their annual overhaul
the subs must be recertified the pilots
take them down on their first dive of
the season as far as I’m concerned it’s
the most dangerous dive of the year