Quote:
| Originally Posted by [b Quote[/b] ]people have been known to carry two computers, if one fails they can complete the dive safely on the second, now if the one that failed happened to be your fancy AI one then you can't because you've just lost your pressure gauge too. |
I beg to differ.
You carry two computers like you carry two DVs - so that if one breaks, you can safely ABORT the dive using the other.
If your AI computer breaks, but you have a second computer and gauge, only a Darwin candidate would continue the dive happily using his unbroken equipment. The failure of ANY important piece of dive gear is a signal to immediately call the dive. A diver with an AI computer, a backup computer, and a backup gauge, should respond to a dead AI computer the same way as a diver with an AI computer, no backup, and no gauge - end the dive immediately.
Therefore, a backup gauge has no benefit, unless you distrust your AI computer to give you a valid reading and want another gauge to verify it.
But if you're that mistrustful of it, why use it in the first place?