[PSUBS-MAILIST] Dive report

Tue Jun 14 17:56:45 EDT 2016

Hank,

 Sounds like a successful and educational trip! I had to laugh when I read
about using rocks laying around to trim out. When I took one of my battery
pod's out a couple of days ago to test it to 600' I had strapped what I
thought was the correct amount of 2" X 4",s to it based on my calk's to get
her just slightly negative and when we slacked her into the water, she
floated! The ground swells were about 8' so would of been a hassle to take
some of the wood off so I added my diving weight belt to it and that wasn't
enough so I tied my 13 lb dansforth anchor to it and that did the trick. I
was just hoping and praying that I didn't touch bottom and set the bloody
anchor. I should of taken a picture of it as it was rather Mcgiver looking
but it worked!

Rick

On Tue, Jun 14, 2016 at 10:20 AM, hank pronk via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:

> First time ever ( I think)  that I was able to dive on the first test
> trip.  I had to pull the sub out of the water onto the ramp to remove my
> new  weight from the front.  Then add 4 big rocks from shore in the back
> end, and off I went.    The Perry thrusters work okay but one is making
> noise in reverse, it is the one that has the original spring seal.  I will
> put the new cartridge seal in it now.   Amazingly they only draw 14 amps at
> full speed and that is for both, maybe my amp meter is wrong.  The sub is
> very slow to react to coarse correction, when travelling strait ahead I can
> stop one motor and it keeps going strait for a long way, I have to reverse
> one motor while underway to turn.  I should have mounted them in the back
> on an angle, I did testing last year and the worked well.  Having them
> strait is less responsive.  When I launch the sub it sits nice and level
> and higher as expected, the sub is very stable.  BUTTTT  when I start to
> dive the sub lists bad to one side, once I am submerged it is fine and I
> can cruise around like always.  When I surface the sub has a bad list
> again????  I have to get out and shift my weight to the high side and wait
> for the sub to level out.  Once level it stays level and is stable again.
> Weird!!!    I have a common vent for both front and common vent for both
> rear tanks.  I think the air is taking the path of least resistance to one
> side and when I surface the one side is high and the air spills out the
> bottom instead of filling the low side tanks.  I am not sure how to fix
> this easily, any ideas are welcome.  Worst case, I can add air lines to
> each side, yuk!  there has to be a simple fix.
> I guess lengthening the pipes under the tanks would help, the air would
> have to go deeper forcing it to the opposite side.
> I met some nice people and had a nice visit.  My trailer handles the
> weight okay but my truck feels it.  Might have to get a kick ASS truck like
> Tim has with a nice rattling diesel.  All and all a good first dive.
> Hank
>
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