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Technical Diving

BSAC has been actively involved in Technical Diving and technical diver training for many years.

We have units for hire for rebreather try dives (see rebreather section).
There are many and diverse definitions of technical diving available but BSAC currently defines Technical Diving  as diving which involve specialist equipment such as Closed Circuit Rebreathers (CCR), using multiple gas mixes on open circuit or that uses  helium based gas mixtures termed Mixed Gas.

The primary driver for adopting the equipment, skills and techniques of Technical Diving is to expand our capability for exploring the underwater environment. In particular the use of Mixed Gas allows us to explore deeper than the accepted limit for air diving with a clear head as the narcotic effects of nitrogen are reduced by replacing some or all of the nitrogen with the significantly less narcotic helium gas.

Deeper diving invariably requires extended decompression penalties and so the ability to carry and manage additional  gas supplies increases the complexity of  running the dive plan and additional planning, discipline and diving skills are needed to effectively manage the gas volumes and mixes involved.

Technical Course progression

The increased complexity (and weight) of open circuit equipment necessary for a deep dive, plus the cost of mixed gas make the benefits of CCR equipment evident for this type of diving and can be a major driving force for some divers to seek out CCR training.

BSAC Technical Diving Courses
BSAC has developed a comprehensive and integrated suite of training programmes for both entry level multi-cylinder open circuit, CCR (air diluent) and Mixed Gas courses for both open circuit (O/C) and Rebreather (CCR) diving supported by our own Technical Instructor and Technical Instructor Trainer programmes.
Upcoming technical course training dates

Technical Diving Information
In order to help advise both technical divers as well as Diving Officers and Dive managers BSAC has produced a variety of information and FAQs to help demistify some of the commonly asked questions.

Mike Rowley NDC Tech group Leader"BSAC has always been a broad church, encompassing all forms and levels of diving within our membership. The advent and ongoing popularity of “Technical diving” has broadened the scope of diving choices exponentially. It has spawned major research projects that are informing and educating us of advances in our knowledge of diving physics and physiology. It also has and is pushing companies to develop more efficient and exciting equipment to allow us to further our diving opportunities and horizons. Perhaps equally importantly technical diving has impacted on recreational diver training. The need for higher standards of buoyancy and trim has morphed across to recreational diver training to good effect. So has the concept of redundant life support equipment and self-sufficiency within a buddy diving envelope.

Whatever level meets your diving aspirations BSAC aims to provide it within the Club and to the highest standard. Train with BSAC and go diving with BSAC!"

Mike Rowley, NDC Technical Group Leader

Sophie Heptonstall NDO"BSAC has worked hard to make the entrance in technical diving more accessible to members. The entry level Accelerated Decompression Procedures course allows divers to hone their skills and move on to using multiple cylinders on open circuit. This course has proved extremely popular with the membership. Technical Diving gives divers access to an exciting new range of dive sites that enables exploration at depths that exceed open circuit air diving by adding accelerated decompression or mixed gas. With courses offered within the BSAC Regions, BSAC Centres and BSAC branches you can advance your diving with a BSAC Technical Course."
Sophie Heptonstall, BSAC National Diving Officer

New Try Tech event

New Try Tech event

Book a session at the new weekend event at Vobster Quay 30 September - 1 October