One of the central flaws in the CWBC presentation is clearly illuminated by the statement "I guess they're saying that there's a better chance of miraculous rescue if you have an hour than if you have a few minutes."
How a safety message is interpreted and received by the intended audience is critical to its efficacy. Survival charts are notorious for promoting the wildly inaccurate "you have x amount of time" message, and the CWBC video does nothing to clarify the picture.
Contrary to what is presented in the 1-10-1 concept, you don't "have" one minute to get your breathing under control. You have 1-3 minutes during which your breathing will be totally out of control.
You don't "have" 10 minutes of useful physical activity, you have a desperate race against time in which your physical ability declines dramatically with each passing minute, and the first thing to become numb and useless will be your hands.
As for the 1 hour, it's a theoretical number extrapolated from lab studies of average cooling rates for humans immersed in cold water. In a best-case scenario, everyone who hasn't already drowned is dead from hypothermia at the end of that hour. In reality, if you're physically incapacitated and floating around in your Type 3 PFD, you're very likely going to drown in short order. So you don't really "have" an hour.
Edited by ShiverMeTimbers (06/28/11 04:22 PM)
Edit Reason: changed a word