Gas Planning Worksheets – SDPM

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On the following pages are imperial and metric gas planning worksheets. Copy these pages and use them to run practice gas plans. You should, very quickly, start to see patterns emerging and shortcuts becoming obvious. The goal is to be able to do most of this in your...

Battle Field Calculations – SDPM

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Introduction Picture yourself on the road, driving to a dive site. Suddenly you notice a sign that reads, “Next Gas 65 Miles.” A quick glance at your gauge reveals that it is one-third full; do you need to stop now and fill your tank, or do you have enough to make it...

Ratio Deco – SDPM

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Overview   Ratio Deco is a simple “on the fly” strategy of applying a  set of rules to develop your “decompression strategy” that will minimize the risks and maximize the benefits of the  dive for you and your team. No matter what your range, environment or...

In Water Recompression – SDPM

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In-Water Recompression Strategy (IWR)   UTD and DAN strongly recommend seeking professional help with a local hyperbaric chamber and medical team should you or your teammates experience or display signs or symptoms of DCS. DAN Master Plan Insurance covers...

Lost Decompression Bottle – SDPM

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This chapter describes the procedures and ascent profile modifications in the event of a lost or failed decompression bottle.   Loss of Oxygen If a diver loses his/her oxygen decompression bottle during a dive, the following protocol shall be followed: Diver A...