[PSUBS-MAILIST] deep test

[hank pronk via Personal_Submersibles]

Brian,
The hinge is there so that the rope does not put a load on the valve.  The hinge has a rod that goes to the hp ball valve lever.  I am not good at explaining :-)  I will send you a picture.
Hank
--------------------------------------------
On Sun, 5/31/15, Brian Cox via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] deep test
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Sunday, May 31, 2015, 10:00 AM
 
 Hank,  Does the hinge turn the
 valve on?   I'm not getting your
 system.  How is the HP air turned on?
 
 Brian
 
 --- personal_submersibles at psubs.org
 wrote:
 
 From: hank pronk via Personal_Submersibles <personal_submersibles at psubs.org>
 To: personal_submersibles at psubs.org
 Subject: [PSUBS-MAILIST] deep test
 Date: Sun, 31 May 2015 05:22:02 -0700
 
 Today Gamma is going for a proper 50 foot dive to ensure
 there are no problems with the new dome and ballast tanks.
 Lucky for me the cart was wide enough for the new steel
 ballast tanks.   Next weekend will be the
 deep test.  I am using a simple method for the deep
 test that I used on my little yellow sub.  I will sent
 the high pressure air supply line to a hull penetrator that
 has a hp valve on the other side in the water.  From
 the hp valve the air returns via another penetration 
 to the ballast valves inside the sub that are left
 open.  The hp valve has a linkage to a hinge with a
 stopper.  Then I have a rope that attaches to the hinge
 mechanism, I simply pull on the rope at the surface and that
 moves the hinge and activates the air.  I don't want
 the rope on the valve because I could damage it by pulling
 to hard.  I will manually release the air from the
 ballast tanks until the sub is nearly submerged then put a
 weight on the hatch to send her down. Today's dive will
 determine the exact weight I need to add. 
 Hank
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