TDi Extended Range Diver Course
DURATION: |
Two days (minimum) |
PREREQUISITES: |
- Certified as TDi Advanced Nitrox and TDi Decompression Procedures
Diver
- Provide proof of 100 logged dives of which 25 must be deeper
than 30m
- Minimum of 18 years old
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COST: |
€ 800.00 |
Certain areas of the world provide spectacular dives at depths deeper
than 39 metres/130 feet but you may not have access (or very limited
access) to helium. The TDI Extended Range diver course teaches you
the proper techniques for utilizing compressed air as a breathing
gas, and with a maximum depth of 55 metres/180 feet, so you don’t
have to miss those dives!The TDI Extended Range Diver Course provides
the training and experience necessary including proper techniques,
equipment requirements, and hazards of deep air diving, to competently
utilize air for dives up to 55 metres/180 feet that require staged
decompression, using nitrox mixtures or oxygen during decompression.
Who this course is for:
- The certified TDI Advanced Nitrox/Decompression Procedures diver
looking for the next step in technical dive training. Whether you’re
looking to expand upon your skills, experience, or just go a little
deeper to see an area of interest, this course is for you!
What you can expect to learn?
The TDI Extended Range Diver Course takes an in-depth look at all
of the following and more:
- History of deep air diving
- Physics
- Pressure review
- Formulas for solving dive planning problems, maximum operating
depth (MOD), best mix, and more
- Physiology
- Hypoxia
- Oxygen toxicity
- Nitrogen narcosis
- Nitrogen absorption and elimination
- Carbon dioxide toxicity
- Carbon monoxide
- Hyperthermia
- Hypothermia
- Decompression Options
- Equipment considerations
- Dive tables
- Dive planning
- Operation planning
- Team planning
- Emergency planning
- Diving procedures
- Descent considerations
- Ascent considerations
- Technical dive support
- Navigation
Some of the required skills you will have to demonstrate include:
- Use START before every dive
- Stress analysis and mitigation
- Gas matching procedures
- Demonstrate buoyancy control; ability to hover at fixed position
in water column without moving hands or feet
- Show good awareness of buddy and other team members through communications,
proximity and team oriented dive practices
- Demonstrate competence managing 2 stage cylinders, either 2 deco
gas or 1 deco and extra bottom gas, including drop and recovery
while maintaining position in the water column
- Demonstrate ability to confirm gas switches at depth with buddy/team
members
- Demonstrate lift bag deployment from depth and use of bag as back-up
buoyancy device
- Demonstrate air-sharing ascent from depth while one member of
buddy team is without mask, both as a donor and recipient
- Create contingency decompression schedule after simulated loss
of decompression gas
- Remove and replace mask, deploy back up mask
- Demonstrate tired diver tow at depth and on surface; 30 metres/100
feet lateral
- Complete a horizontal breath-hold swim at depth for 15 metres/50
feet with mask off or blacked out
- Properly execute the planned dive within all pre-determined limits
- Demonstrate the proper procedures for switching and isolating
a malfunctioning regulator, this skill is to be performed at a depth
no deeper than 40 metres/130 feet
- Demonstrate the proper navigational techniques for the specific
dive
- During 2 dives, demonstrate an ascent with ascent reel and lift
bag and perform staged decompression
- During one of the dives, tow a simulated unconscious diver, while
at depth, 9 metres/30 feet to ascent line and simulate an emergency
rescue ascent technique
What’s in it for you?
Upon successful completion of this course, graduates may engage in
diving activities without direct supervision so long as the following
limits are adhered to
- The diving activities approximate those of training
- The areas of activities approximate those of training
- Environmental conditions approximate those of training
- Upon successful completion of this course, graduates are qualified
to enroll in the TDI Advanced Wreck ,TDI Trimix, and TDI Advanced
Trimix courses
TDI Extended Range Diver minimum requirements:
- Satisfactorily complete the TDI Extended Range Course written
examination with a passing score of 80%, followed by 100% remediation
by the instructor
- Complete all open water requirements efficiently
- Demonstrate mature and sound judgment concerning dive planning
and execution
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