Hi Rick.
My question is.....
You said the only sources of humidity in your boat
will be from your body perspiration and your latte cup.
Your boat is an ambient sub, so that means it is
always open to the water with air pressure keeping the liquid water
out.
Even though the air pressure keeps out the water
liquid, wouldn't the water vapour molecules still enter the boat
and condense back into droplets obscuring your
canopy? Wouldn't that mean that there is just about no way
you can stop moisture from entering your boat because of its very design as an open to the water
ambient sub?
A suggestion of mine.....
Since it appears to me that there is no way someone
could keep water vapour out of an ambient sub because of it
always being open to the water, then why not use
water to keep the canopy clear? Here's what I mean....
We have all taken a garden hose to our car windows
on mornings when they were all covered with water dew and
washed them off so we could see. Why not do
something like that in an ambient sub? Like this....have a channel
around the bottom of your acrylic canopy that
catches the water and then a small fish aquarium pump that would
pump the water from the channel back up thru small
hoses that would squirt a fine spray onto the upper area of
your canopy just enough so the water would collect
and run down keeping the view clear but without water dropping
vertically straight down. In other words the water
would flow down the inside of the curved canopy without falling
off it vertically onto the floor. You could run
this constantly and just look thru a thin even film of water running
down
your canopy, or you could wait until the
canopy was getting fogged up and then pop the switch for a few seconds
to
run the water and clean the canopy off.
Kind of like a very thin controlled water
fall over your canopy's inside surface.
This would keep the water droplets from forming and
obscuring your view by rinsing them off either constantly or
intermittently.
I also wonder if it would help this type of system
to polish the inside canopy with wax, or it that would make the water
release easier from the canopy's inside curved
surface and drop to the floor.
Does this sound easier than a towel and defog or is
this a crazy idea?
Bill Akins.
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