5 Jul
2011
5 Jul
'11
9:20 p.m.
On Tue, 5 Jul 2011, Dave McGuire wrote:
On 07/05/2011 06:07 PM, Andrew Burton wrote:
Water exposure comes to mind.
More importantly, if the hole was open when you're stomping around then
air would leave every time you put weight on that foot and come back in
when you took weight off of it, partly defeating the purpose of the air
insulation. Walking on air has its downsides though: you have all the
grace of someone walking around on giant, heavy marshmallows.
Alexey
If you
forget to open the valve prior to take-off, they
get darn
uncomfortable at altitude, and there's so
much pressure that
the valve
sticks (I tried it once intentionally, to see how
much they
swelled
up, and I didn't last until cruising
altitude).
Why a valve and not a hole? Surely if it had holes you wouldn't
need to
worry about opening it? Or are there times when you need the valve
closed?