Thailand – Australia – United Kingdom

Technical decompression diving in Thailand

Big Blue Tech completed a TDI Advanced Nitrox Course yesterday with the combined afternoon of skills which embodied both TDI Decompression Procedures and TDI Advanced Nitrox.

With the flexible curriculum offered by TDI it was possible for the training team to introduce interesting and valid skills which are appropriate for the diving ahead.

The students on the course were Mark Slinn, Andy Cavell and Ash Dunn who are all working towards a future as a technical diving instructor.

One of the signature skill introduced involves using a 3m marked line on the sea bed and having the divers wearing full technical diving gear start at the 1m mark and start fining, during fining the diver must remove one decompression cylinder without loosing control, upon reaching the end of the line the diver stops and begins backwards kicking, collecting his decompression cylinder while kicking backwards and returning to the start where the diver turns 180 degrees and moves away. The goal is to not use your hands and focus on perfect trim and balance while performing these skills.

Backwards finning can be quite difficult initially, to help this process we provide Jet Fins to our students as part of the equipment they will be using during the course to enhance the ease of learning. Here is a video to help illustrate the skill:

Additional to these skills was task loading with 8 cylinders removing and replacing each one while maintaining buoyancy. The training team felt the students really excelled and didn’t see them disturb the bottom, without being told to, during both 50 minute dives.

This would be the last dive until the after christmas as the students progress on to their Gas Blender and BSAC Instructor course.


4 responses

  1. peter

    and advanced nitrox course dont need a lot tanks….just to hangle tanks dont become a tch divers…become a christmas tree

    December 22, 2009 at 12:48 am

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