Who is this course 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

    • Air

    • Nitrox

    • Oxygen

  • 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

Prerequisites:

(these requirements must be met prior to the start of the course):

• Minimum age 18

• Certified as a TDI Advanced Nitrox Diver and TDI Decompression Procedures Diver, or equivalent

• Proof of a minimum of 100 logged dives, of which 25 must be deeper than 30 metres/100 feet

TDI Extended Range Diver minimum certification requirements (exit):

• Satisfactorily complete the TDI Extended Range Diver 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

Equipment

You’ll use full technical equipment, which includes wings and doubles plus two additional deco cylinders, or you may use a technical sidemount configuration. Your TDI Instructor will explain the gear required for your tec diving adventures.

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