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Simon, I don't think you can put a MAX limit like you suggest. There are people who are competent to do 100 foot dives on air for say 60+ minutes and deco on O2. This would be considered a technical dive and outside of the training limits and requirements of recreational diving. This same person without proper training and experience should not attempt a trimix dive of any type. Others have the experience and training to dive trimix to 200-300 feet but should not attempt 400 foot, I certainly would not attempt a 400-foot mix dive. I also think things like conditions play an important role. Doing an extreme dive in cold dark waters in ripping currents is very different than doing a technical dive in warm clear calm water. I would consider a dive in the North Atlantic very different than a dive in a clear warm lake with no current to the same depth. Art. -----Original Message----- From: Simon Murray [SMTP:simonm@ho*.co*.za*] Sent: Wednesday, July 19, 2000 4:53 AM To: Tech Diver Subject: Max Depth Limit Has anybody given thought to a maximum 'safe' tech diving limit i.e. a depth beyond which the margin for error is so small and the risk of accident so great that it becomes unacceptable. For example I understand that the recent GUE Britannic dives were at 400 feet (120m), is this around the limit ? Regards, Simon Murray South Africa -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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