I know when you get to wear a hat you have already learned some physics that apply to diving.
It is obvious to me some people are getting into a hat and do not know what they are wearing
and why they are wearing it! (or they just have a cool name)
DOES SUCK SOME FACE PLATE MAKE SENSE?
Nice explaination Diverdoug!
See you topside! John
Well, you might be right about that, since I dove a Mark V as a novelty one time. I don't understand the physics behind that hat because I was never intended to use it. In case that was directed at me. Oh, and if it was, SUCK IT!
But, as far as my hats, and the hats i've dove for a living. I absolutely understand what's happening with them. They are not sealed air tight units. They are in essence, a regulator and a skull cap for protection. The only difference between my hat and a Band Mask is the shell.