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J’ai planté ma TENTE SOUS L’OCEAN !! Ep.3

J’ai planté ma TENTE SOUS L’OCEAN !! Ep.3


Hello everyone, we’re back here in Polynesia
for the 3rd episode of our webseries on the Capsule program. In the previous episode, we installed the ballasts
on the external slope of the reef in Moorea, and today is a really special day,
as we are going to install the Capsule. You can see it here behind me,
the team is giving the final touches of its preparation. In a few minutes, we’ll load it
on a truck which is going to take it to the port of Papetoai
from which we’ll load it on a dinghy boat to take it to the reef of Moorea. All the diving team is getting ready,
it’s a great day so let me take you with me
to live these operations with us. It’s an underwater habitat
in which 3 divers will live they will sleep, eat… Would you like to live in an underwater house like this? (all)
Yeah!!! We’re about to drop immerse the Capsule
in a few minutes. We’re out on the reef, you can see Moorea behind me. We’re approaching the site
where the ballasts are located. Careful with the slings! Yewwww! Careful Sylvain! Put a bit more traction please! That’s it. Almost there! That’s it! Here we go! I like this operation because it’s pretty
smooth and continuous. It’s like a landing a plane. Gaël and Erwan are pulling the Capsule with the props
to take it above the ballasts – the target zone – Sylvain is controlling the descent and I’m helping Sylvain from a removed overview. The slings are hanging at the right height, so Emmanuelle and I are grabbing them and hooking them at the four corners
of the ballasts. In just a few seconds, the Capsule is in place
and we only have to fill it up with air. As soon as there is enough air in the Capsule,
no need to have it hanging from the buoys at the surface anymore,
so we cut them loose. That’s it! For the first time the Capsule is
set-up before our eyes. Yew! We imagined it, we built it,
and now we’re in it! We are living under the sea, in the Capsule. It’s amazing! It’s mental! It’s between a swimming pool, a steam room
and an aquarium. It’s seriously one of the best days of my life!
Really! High five Manue! No no no no no no no ! That’s it: the Capsule is in the water. It’s incredible, and this immersion was quite emotional
being able to poke our head inside and all. Like I was telling you during the first episode, we started this project from scratch in Concarneau with our engineering team,
and as it happens we have here with us Scott Cameron,
the engineer who lives in California and who helped us develop and design the Capsule
during 4 months in France. He’s here in Moorea, so let’s hear him out
and get his impressions about the installation of the Capsule. The next step is tomorrow.
We’ll replace the air inside the Capsule by some heliox. We’ve been telling you about the helium/oxygen atmosphere in the last couple of episodes which will replace the air, so let’s
ask Bernard Gardette to explain to us why. Bernard Gardette is the former Scientific Director of Comex, a company truely pioneer in the professional diving industry. He’s worked on the Hydra projects in the 80’s which allowed men to go as deep as -701m, a record. Heliox is highly beneficial
not only it’s really to breath as it is 7 times thiner than air,
that’s only a plus. The main reason is in regards to decompression. After a while, whether it’s 24h, 48h or 3 days,
it’s time to got back to the surface for the divers. As the divers are saturated with helium,
we can work with decompression tables that are twice as fast compared with air,
and they are much safer too as there’s never been a decompression accident recorded from ascents from 20 meters with a mix of helium/oxygen. So with helium we have a decompression
which is safer and faster. The objectives of the dive: we go down with the gear,
next we remove the air out of the Capsule and we create
the helium atmosphere. When the atmosphere is ready,
Sylvain and I will go inside we start bringing in the shuttles. We are removing the air out of the Capsule
with a parachute to support it. Because we position the parachute smartly,
the air that’s coming out comes inside the parachute which creates a lift
to maintain the buyancy of the Capsule so that we don’t need to inject
any air into the parachute. We’re ready to create the helium atmosphere. Ghislain goes inside the Capsule,
I follow him, it’s the first time we’re inside the Capsule breathing heliox. Right away we’re talking with this ridiculous voice which we find quite amusing to start with. The problem with heliox is that from this point on it’s a race against time. We’re getting saturated with helium, and we’re saturating
fast, which means that the minutes inside the Capsule will cost us a lot
of additional decompression time. We’re starting to receive the electronics in the shuttles, those watertight containers which we can take inside the Capsule. We’re setting up the two scrubbers of lime soda, the 3 oxygen solenoids, and the oxygen injector with the associated electronics, the communication
system, we’re plugging-in the batteries and we’re switching all that on. Everything is working perfectly well! Yes! Oh my God! I can see the Capsule! I can see the Capsule. Awesome! Yes! It’s all working. What is means is that
we have all the green lights to make the next dive
a saturation dive. 24 hours to trial the Capsule, the systems,
the protocols, the procedures. In one word: training the whole team to this program,
and this will be in the next episode of our webseries. It’s the end of this 3rd episode.
I hope you enjoyed this one. Please subscribe to our YouTube channel
and share this video too. Next time I’ll see you, I’ll be telling you all
about the first saturation test dive of 24h.
See you soon! Nana!

3 comments

Quelques questions, quelle est la température dans la capsule. J'imagine qu'à Moorea, pas besoin de chauffage mais, en Bretagne ce serait pas du luxe ! Et aussi, d'où vient l'alimentation en heliox/air ? Simplement par le sas du bas ? D'où vient l'énergie ? Batterie, générateur ? Peut-on y installer une machine à café ?

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