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Glad to help Joe.
See how the exact same "center board trunk" idea
can be used to create an open bottom hatch that the water level is under by a
few inches
and therefore would not slosh into the ambient
boat? No need for a hatch if you want to cut down on time and costs and
don't plan to be
sitting outside atop the sail. Just use your trunk
hole to enter and exit the sub. One thing to remember if using this for going
out diving from the sub.....
remember you were already pressurized at whatever
depth the sub was at and for that time. Now if you go outside and dive deeper as
a diver,
you must calculate your previous compression
pressure and its time and then treat your outside dive just like any other
repetitive scuba dive so
you will not require deco. Even if you did decide
to put in an upper sail hatch, or deck hatch, it would still be very nice to
have a big hole in the floor
that you can just jump out of the ambient sub thru.
Bill Akins.
----- Original Message -----
Sent: Thursday, March 02, 2006 6:40
PM
Subject: Re: [PSUBS-MAILIST] Free
Surfaces solution!
Yes you did Bill but, I didn't put 2 + 2 together at that
moment! I was still thinking of a flat plane.
Thanks so much!
Joe
From: "Akins" <lakins1@tampabay.rr.com>
Reply-To:
personal_submersibles@psubs.org
To:
<personal_submersibles@psubs.org>
Subject:
Re: [PSUBS-MAILIST] Free Surfaces solution!
Date: Thu, 2 Mar
2006 17:30:03 -0500
Hi Joe.
Remember when I told you to partially enclose
the ballast tanks to prevent not only burping but also to aleviate your free
surface problem and just leave a small hole in their bottoms for ambient
operation?
Looks like you came to the same
conclusion.
Bill Akins.
----- Original Message -----
Sent: Thursday, March 02, 2006 12:08
PM
Subject: [PSUBS-MAILIST] Free
Surfaces solution!
I really did not want to seal off the soft tanks completely
in my ambient design to keep the "free surfaces" in check. I found
the solenoid flood valves unnecessarily complex for my
application, plus the issue of access and maintenance.
This is truly bizarre and a testament to the function of
this list. Not to encourage off topic discussions but...
The rocket discussion made me think about the pyrotechnics
of solid rocket motors, which made me think of flares, which made me think
of the time years ago, Freddy got drunk and set his sail cover on fire one
July 4th with a hand flare.
That boat had a centerboard trunk!!
Hmmm, centerboard trunk!!....led me to
this solution in five minutes!
You guys are just bursting with design ideas!!! :)
Thanks
Joe
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