Extended Range

The TDI Extended Range Diver with DV Diving

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 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.

What You 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 of diving including:

Pressure review
Formulas for solving dive planning problems, maximum operating depth (MOD), best mix, and more

Physiology of diving including:

Hypoxia
Oxygen toxicity
Nitrogen narcosis
Nitrogen absorption and elimination
Carbon dioxide toxicity
Carbon monoxide
Hypertermia
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

Prerequisites

You must:

Be a TDI Advanced Nitrox Diver (or hold a qualifying certification from another organisation)
TDI Decompression Procedures Diver (or hold a qualifying certification from another organisation)
Have a minimum of 100 logged dives, of which 25 must be deeper than 30 metres
Be at least 18 years old
Have a medical statement signed by your physician

For more information about this or other TDI courses have a chat with one of the DV DIVING Team members.

The Cost

TDI Extended Range Diver- £600

Excluding: Twin set rental & gas mixes