Mark-

Regarding having adequate volume of bailout gas to reach the surface...

I use decoweenie (thanks, Phi) and plan my CCR deco dives with a bulhman GF of 35/80 (or so) for my dives for the obvious deco benefits.

For my bailout plan, if SHTF, I use a plan cut from decoweenie but calculated with straight bulhman (no GF), which yields less time at deeper stops and more at the shallower end, thereby saving bailout gas. You'll find the difference in volumes required substantial between the two. It may not be as clean a deco, but bulhman is tried and true, and will get you to the surface alive, if not mildly bent. Good trade off if you ask me.

In fact I carry a range of bailout plans written on a slate that covers various depths & times based on my bailout mix and ccr bottom profile.

A question for the group, as I'm a simpleton when it comes to rebreathers, do modern CCR deco computers allow you to switch algorithms mid-dive to facilitate a plan such as this?

Great thread btw!!


russell helsley