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Armchair Tekkie - The True Value of Technical Dive Training



Those who fail to gain the experience and the training necessary to dive to extended ranges, in overhead environments, with mixed gases or nitrox and dive decompression are what we refer to as ‘Armchair Tekkies’. They take unnecessary risk because they do not know any better yet persist in dabbling in the activity because its appeal either feeds an ego, an image or a lifestyle.

Thirteen deaths occurred in the United States in 1996 where people were performing technical dives and of those thirteen, only three were certified as technical divers and had the proper equipment. Remarkably the pattern of contributing factors over the last 28 years has not changed much despite the growth of the technical dive training industry. In my profession I have had the grisly task of not only recovering divers, but conducting dive accident investigations focusing on causality and in nearly all scenarios the problem was related to a lack of respect for the knowledge and skill required to dive technically. Those who fail to respect the value experience brings and fail to pursue the training necessary to dive to extended ranges, in overhead environments, with mixed gases or Nitrox and dive decompression are what we refer to as ‘Armchair Tekkies’. They take unnecessary risk because they do not know any better yet persist in dabbling in the activity because its appeal either feeds an ego, an image or a lifestyle. They do not understand the true value of technical dive training and extended range diving.


There are two components to graduating from the 'Armchair'. One is experience, and the other is training. First let's discuss experience. It begins with humility and the ability to accurately assess the amount of actual experience one has. So many divers confuse 100 dives or even 500 logged dives as tenured time in the water which is also very much dependent on the type of diving one does. Additionally I find that divers often find it difficult to accurately track the true number of dives they have actually done (read my blog on assessing experience). Also consider physical and mental fitness levels, a requirement that must be met before someone begins to train as a diver, at any level. For basic levels of diving, you must be comfortable in the water with satisfactory swimming skills but when a diver starts to haul around extra tanks and equipment deeper into environments that are more unpredictable, they must be in good cardiovascular shape and fit emotionally. With that, a diver needs to gain experience, and lots of it before they progress any further into the realm of extended ranges. A person needs to get to know themselves and their equipment intimately and discover what their limits are. This takes time and cannot be learned by justing read about it or watching YouTube videos.


Once any training is complete, a diver must then progress slowly, gradually extending their limits gaining valuable experience with each small step. There isn't a person on this planet who has enough natural ability to accelerate through this stage, for it is here that the familiarity and intuition needed to evaluate risk is gained.

Technical diving without proper training poses significant risks, including severe injury or death. Untrained divers may face dangers such as running out of breathing gas at depth, suffering from decompression sickness, nitrogen narcosis, oxygen toxicity, and equipment failures they are not equipped to handle. Additionally, complex dive planning and the use of specialized gas mixes, such as Nitrox or Trimix, require thorough understanding and skills, which untrained divers lack, increasing the risk of accidents in deep or overhead environments.

In addition to the skills and knowledge necessary to plan dives, risk is what a diver learns about in a training course. It is true, an 'Armchair Tekkie' can read about gas planning, equipment configuration, generating dive tables and decompression techniques, and common sense helps one deploy this information. Realistically though, one’s Risk-Benefit Analysis skills can only be safely developed in formal training courses. An experienced Instructor can teach divers about the many obscure problems that can occur because they themselves have had to navigate through these ‘issues’. As a dive plan becomes more involved, the complexity of the contingency planning in turn is exponentially affected. There are a great many issues that are not so obvious that can interfere with an accurate Risk-Benefit Analysis and that is where the untrained diver will have problems.


An alarming trend has developed within the community of new divers. When divers are first certified, their respect for the diving environment, personal preparation and dive planning is strong. They began their diving career as safe divers who do not take a lot of risk, likely a result of the clear messaging sent in an open water course and a fear of the unknown. As many continue to dive, they gain a confidence in their ability to dive deeper, longer and into environments that are much more challenging and involve more risk. Divers however, are often reluctant to take the necessary training for reasons related to cost, availability and time commitments to name a few. We are in an era of ‘Do-It-Yourself’, Google research, social media Op-Ed’s and homemade YouTube instructional videos.


Sadly, many divers do not recognize the need for additional training, and because they might maintain a Divemaster or Instructor rating, feel qualified to dive into extended ranges. They unknowingly enter a zone of high-risk activity (see Figure above). It is not long before they enter the critical zone where injury or death becomes a significant probability. Fortunately, many divers either scare themselves enough to back-off on their limits and take training before an accident occurs, or eventually through time and the school of hard knocks learn from their mistakes. Too many however, succumb to their inadequacies. Ongoing diver training helps close the gap, eliminating the critical stage where divers are predisposed to unnecessary risk.


Ongoing diver training helps close the gap, eliminating the critical stage where divers are predisposed to unnecessary risk.

One of the biggest excuses individuals make to as to why they do not take advantage of formal diver training is the cost of advanced level or ‘technical’ diving courses. It is true that many of these courses are very expensive compared to basic entry level diving courses but the level of experience and training an Instructor must have and must also pass on is much more intensive. Interestingly enough, the cost of the course is often minor compared to the cost of the equipment needed to safely complete an extended range dive. If you cannot afford the course, you likely cannot finance the proper equipment to be that kind of diver. Divers also confuse higher levels of training certifications such as Divemaster, Instructor or entry level Wreck Courses as acceptable qualifications to dive extended range – they are not.


 Many great diving pioneers learned on their own and gained the skills and knowledge through practical experience, yet they had to survive a lot of high-risk activities (many in fact did not). The training programs were not available for them to take advantage of yet if any one of them could have learned through a formal training program, they would have. Ask one and they would tell you to get off your ‘Armchair’ and get trained.

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