ADVANCED DECOMPRESSION: TWO DECO GASES AND 50 METRES… EPIC
This course is the next logical step in RAID’s development of its technical divers. More advanced planning and careful choices around meticulous choices of gear, team responsibilities, and approach to dive sites well beyond recreational limits and skills.
ADVANCED DECOMPRESSION teaches students how best to conduct a complex ascent from depth while optimising off-gassing during mandatory decompression stops using two decompression gases, including 100 percent oxygen..
This newly written program emphasizes modern technical diving skills, the most recently adopted safety protocols, equipment setup, and the pinpoint neutral buoyancy management necessary for effective decompression.
RAID ADVANCED DECOMPRESSION is offered in two options: 50 metres air and nitrox | 50 metres air, nitrox, trimix, and is available to divers in twinset or sidemount configuration.
Contact your local RAID Dive Centre for details.
Visit RAID FREe-Learning to read more.
Next step: #3 NORMOXIC TRIMIX in New Tech Pathway.
Recommended prerequisite course: #1 DECOMPRESSION
OVERVIEW OF COURSE STANDARDS
This course is designed to train Students to safely:
Complete all the skill requirements as outlined in the manuals for in-water training.
o Pre-dive safety checks.
o Buoyancy check.
o Stage remove and replace on the surface.
o Descents.
o Buoyancy and trim.
o Long hose recovery.
o Frog kick.
o Back fin.
o Modified flutter kick.
o Helicopter turn.
o SAC rate calculations.
o Stage remove and replace underwater.
o Gas sharing stationary.
o Gas sharing swim.
o Gas sharing swimming ascento Back-up mask deployment.
o Gas switch protocols
o Breathing from a free-flowing decompression regulator.
o Shutdown drills.
o SMB deployment.
o Ascent with simulated decompression and real decompression.
Dive to a maximum depth of 50 metres / 165 feet.
Use air, nitrox, oxygen and trimix (where applicable).
The END/EAD for trimix must not exceed 30 metres / 100 feet.
Complete planned decompression.
o Divers must have sufficient gas volume to complete a safe ascent, including the required decompression plus one-third reserve to share gas with a buddy.
Use a higher oxygen content nitrox (up to 100% oxygen) in up to 2 separate stage cylinders to optimize decompression
dive times.
o Bottom gas may have a maximum PO2 of 1.4 at depth.
o Decompression gas may have a maximum PO2 of 1.6 at depth.
II. Student Prerequisites
A Student taking this course must:
Be a minimum of 18 years old.Be certified as RAID Decompression and Master Rescue (or equivalent).
Have a minimum of 50 logged hours underwater or 75 dives using open circuit.
Must have logged at least 10 dives between 25 – 40 metres / 85 – 130 feet.
Complete the registration process, including all mandatory online documentation.
Submit current First Aid & CPR training and Oxygen Administration certificates
Be certified as a diver in RAID Sidemount or RAID Twinset if doing the course using either configuration.
III. Course Requirements
To earn certification, the Student must fulfill the following requirements:
Complete the online academic modules, quizzes, and exam.
o Equipment.
o Physics.
o Physiology.
o Management.
o Confined Water.
o Open Water.