Diving Rebreathers To 80-100 metres
This advanced CCR program completes RAID‘s revision of its complete list of rebreather programs to conform to the latest, most logical (and safest), industry guidelines.
This course more than any other is the pinnacle of recreational open water diving and it’s within this program that divers explore the limit of technical diving.
This course builds on the knowledge and experience already gained conducting decompression dives on rebreathers in prerequisite RAID courses. However, at depths of 100 metres (330 feet), where diluent gas contains less than 18 percent oxygen, meticulous care is needed when planning and taking part in dives where an extra few minutes at depth will result in exponentially longer ascent times.
Certification for this program is available in two levels to account for different environments and student preferences: A Limited Hypoxic Trimix student card signifies the course dives were to 80M maximum depth, whereas Hypoxic Trimix is earned when course dives were to the full 100M limit.
Course Parameters
This course is designed to safely train tech CCR students to:
- Plan and conduct decompression dives to a maximum depth of 100 metres / 330 feet using hypoxic trimix.
- 80m/260ft certification option available.
- The maximum planned loop PO2 (setpoint) shall be not exceed 1.3 bar.
- The maximum loop PO2 shall not exceed 1.4 bar, except at depths of 6 m or less.
- The inspired PO2 of the open circuit bail out gas shall not exceed 1.6 bar.
- The diluent supply gas must contain a minimum of 10% oxygen.
- The maximum END/EAD of the diluent must not exceed 30 meters / 100 feet.
- Diluent on-board gas must not have a PO2 higher than 1.1 bar at the maximum depth.
- Minimum use of 4 stage cylinders.
Prerequisites
- Minimum age of 18 years at the start of training.
- RAID Normoxic Trimix Rebreather Diver.
- Certified and current RAID Rescue Breathing/CPR/BLS Training and Oxygen Provider.
- Minimum 100 hours of CCR diving.
- Minimum of 50 hours using the specific CCR being trained on, with 30 dives deeper than 30 meters / 100 feet, 10 dives deeper than 50 meters / 165 feet and at least 20 dives that required staged decompression.
- Submit a dive medical passed by a certified diving physician.
Equipment Requirement
For this course, the instructor and students will be required to have use of the following as a minimum:
- 4 x Stage Cylinder Rigs fitted the following:
- One Regulator with 1m/3ft hose and SPG for bailout (DIN and SPG on a 6-inch hose).
- One BCD feed hose to be used for drysuit or manual addition valve feed.
- One side slung stage cylinder (recommended 11,2L / 80cf. 7L/40cf may be used for an oxygen bailout cylinder)
- Accessories & Exposure Protection
- Redundant backup CCR/OC computer
- 1 x wet notes
- 1 x wrist slate or finger slate
- 1 x Orange SMB and reel/spool
- 1 x Yellow SMB and reel/spool
- 2 x knife/cutting device
- 1 x Primary mask
- 1 x Backup mask
- 1 x torch/light/underwater lamp where appropriate
- 1 x backup torch/light/underwater lamp
- 1 x exposure suit – a dry suit must have interchangeable inflator system with inflator LP hose
- 1 x offboard suit inflation system
- Urination system
- Smartphone, Tablet or Laptop with Decompression Software
- Access to an Oxygen Helium analyzer.
In Water Training
- There must be at least seven in-water sessions with a minimum in-water time of 420 minutes.
- Confined Water
- At least 1 dive must be done in confined water or in open water to a maximum depth of 40m/130ft as a skills refresher and skills update dive.
- Open Water
- A minimum of 6 open water dives with at least 340 minutes of underwater training.
- All dives deeper than 40m/130ft must be conducted using an appropriate trimix diluent.
- Depths for all dives should be increased incrementally.
- At least 2 dives must be deeper than 75 meters / 245 feet, of which at least one open water dive shall be made to at least 90m/300ft (70m/230ft for 80m/260ft certification).
- There can be no more than two in-water sessions per day and no more than one open water dive per day if any of those open water dives require more than 45 minutes of mandatory decompression stops.
Start Today
1. To register as a RAID diver, please visit the link provided below and follow registration instructions.
2. Visit our FREe-Learning centre to read the course material, then purchase the course if you wish.
3. Locate your nearest dive center and get in touch to begin your adventure with RAID today!
Be unafRAID and get started today!
⭐ When purchasing a course online, access to the course manuals, quizzes and exam are included. Practical training is provided by your local RAID Dive Centre and Instructor.
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