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3 revo à + de 200 m


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rEvo's at 200m+ in the Red Sea

rEvo 200m+ team dive panorama reef 5/12/2009

Yesterday, December 5, 2009, a team of 3 divers using rEvo rebreathers succesfully completed a dive to 211m at Panorama Reef in the Egyptian Red Sea.

Local support, gasses, tanks, boats, staff (in and out water) was supplied by Orca Dive Clubs.

The dive was permitted by and had the support of the Egyptian Chamber of Diving and Watersports and had the support of Hypermed, the hyperbaric chamber of Hurghada.

The Team

 

Planning and organisation: Paul Raymaekers in cooperation with Orca Dive Club Safaga, Marc Crane.

Deep team: Paul Raymaekers (Belgium), Marco Reis (Brasil), Pim van der Horst (Netherlands)

Deep support team 1: Joël Gallien (France), Frank Robert (Belgium)

Deep support team 2: Wim Vermeire (Belgium), JP van Mele (Belgium)

Surface manager: Marc Crane (UK), assisted by Marc Thierens (Belgium), Ahmed Salem (Egypt)

Shallow water support: Arnaud St Jean, Johnny Sanders, Tom Freibote, Stefan Weiss, Thierry Dedeurwaerder.

Deep photo team: Tobias Steger, Birga Weisert

Filming: Massimo Verde

Surface photos: Sebastien Micheloud (Zwitserland), Tobias Steger, and the whole crew on board

Hyperbaric chamber stand-by: Dr Hossam Nassef (Egypt)

Gear and gasses

 

Hybrid standard rEvo III in cmf mode (Paul)

Hybrid standard rEvo II in cmf mode (Marco)

mCCR mini rEvo III (Pim)

Inboard dil 5/75

Offboard dil 10/70

PPO2 adjustment by injecting rich dil 10/70 in the deepest part of the dive (200m-100m)

Bailout gasses 5/75 10/70 15/50 20/30 50 O2

Deep lights (350m+) provided by Green Force.

Dive organisation

 

Planned depth 210m, bottom time 1 minute, run time 280 minutes.

Deco profile according to the Shearwater computers on the rEvo’s.

Descent speed 20m/min, ascent speed from depth till first stop (95m) 20m/min.

Deep shot line from boat 1 +/- 50 m away from the reef, jump at 50m depth to shallow shot line from boat 2 near the reef to finish the dive.

Full deco station under boat 2 with all gasses at 12/9/6m

Deep divers carrying 80cft 5/75, 10/70 and 15/50 bail-out gasses, and one extra 40cft oxygen in case of loss of inboard oxygen.

Deep support divers carrying 80cft 15/50, 20/30 and 50%.

Shallow support divers bringing down 20/30 and 50% for the deep divers and taking off the deep mixes.

Paul and Marco using scooters to go down, Pim descending on the shot line. Parking scooters at the 180m mark (max scooter depht) and going to the end mark on the line. Ascending on the shotline till first stop, after recovering the scooters on the way up.

The Dive:

The entire dive went according to plan, except for a part of the ascent, where Pim switched over to open circuit gas as he felt unsure, probably due to overexertion during the descent in trying to keep up with the planned descent speed. After assessing the situation, Pim switched back to the rebreather.

The last 3 hours of the dive were spent on the nice reef of Panorama, near the support boat with the decostation. The deep divers, support divers and all together, enjoining the marine life and Marco filming ‘anemone city’.

The last diver left the water on runtime 294, and after 10 minutes surface deco the complete dive plan was finished.

 

Paul

__________________

rEvo-rebreathers.com

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  • 1 an après...
Le rEvo mCCR ne doit-il pas être modifié pour descendre à plus de 80m ? (à cause de la buse d'admission d'O2 à masse constante)

Salut,

Comme écrit, mais en anglais, appatrir de 100m injection d'un gas riche pour maintenir la ppo2.

 

La "clarinette" au commande d'injection déportée du rEvo (option) permets de déporter l'injection de gaz du recycleur (diluant/oxygène) et aussi de "brancher" n'importe quels autres gaz. Soit pour palier à une perte de gaz du recycleur ou pour s'affranchir de la limite en mode mCCR.

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Bonjour,

 

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