Turn Pressure – Dive Planner

Most divers were taught one number: surface on 50 bar, or 500 psi, no matter the depth, the cylinder, or who they're diving with. It's not that nobody plans — it's that the plan never changes with the dive. Turn Pressure runs the actual numbers instead. Tell it how deep you're going, what you're carrying and who's breathing it, and it gives you a turn pressure, the minimum gas to get two divers up from the deepest point, and a bottom time — before you kit up. It's a no-stop, recreational planner. It doesn't plan decompression dives, stage gases or bailout, and it isn't meant to run during the dive — plan with it on the boat or the night before, then go by your gauge and your computer in the water. WHAT MAKES IT DIFFERENT Minimum gas that scales. Most calculators hand you a flat reserve. Turn Pressure works from the volume two divers need to reach the surface, for your cylinder and your…