5 Jul
2011
5 Jul
'11
8:57 p.m.
On 07/05/2011 06:07 PM, Andrew Burton wrote:
Water exposure comes to mind.
-Dave
--
Dave McGuire
Port Charlotte, FL
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?