Gas Planning Worksheet
A fill-in sheet for rock bottom, usable gas, turn pressure, gas needed, bottom time and SAC rate, with a team table and a worked example.
Do the math before the dive.
These are the sheets I use and teach from. Tank factors, gas consumption, the formulas behind gas planning, a dive log built for getting better, and an emergency plan you fill in before you need it. Print them. Write on them. Bring them on the boat.
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Tank Factors and Gas Consumption
Tank factors for singles and doubles, psi per minute at every depth, and specs for 88 steel and aluminum cylinders.
Gas Consumption Table
How depth multiplies gas use, how long a cylinder lasts at each depth, and an AL80 gauge-over-time table in bar and psi.
Formulas for Gas Math
ATA, MOD, best mix, tank factor, END, EAD, partial pressure, SAC rate and the CNS clock, each with a worked example.
Dive Log
A printable log built for improvement: depth, time, pressure and SAC rate, weighting, team, and what you'll work on next.
Dive Emergency Action Plan
Fill in your site's oxygen, AED, phone numbers and nearest chamber before you dive, then work through an emergency step by step.
Paper doesn’t replace training
A worksheet tells you what the numbers are. Training teaches you to run them in your head, at depth, with your team, while something else is going wrong. That’s where Essentials of Tech starts.