<font color='black' size='3' face='Arial, Helvetica, sans-serif'><font class="Apple-style-span" size="3">The trick with good listening is to have your bullshit-o-meter set to maximum sensitivity. You asked the right questions to begin with, evaluated knowing what you know, added the data that the Nektons have done +12K dives like they are, and went to see. As they told me once at Gunsite Ranch in Arizona, we are not here to teach you to shoot. We are merely asking that you suspend what you know and let us teach you something new. Then you can make up your own mind.</font>
<div><font class="Apple-style-span" size="3">Vance<br>
</font><br>
<br>
<div style="font-family: helvetica, arial; font-size: 10pt; color: black; ">-----Original Message-----<br>
From: hank pronk via Personal_Submersibles <personal_submersibles@psubs.org><br>
To: Personal Submersibles General Discussion <personal_submersibles@psubs.org><br>
Sent: Sat, Aug 9, 2014 7:58 am<br>
Subject: Re: [PSUBS-MAILIST] Gamma test dive<br>
<br>
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<pre style="font-size: 9pt;"><tt>Honestly Vance, I am at a loss for words how well it works. After just one day,
I feel like a real pro. To think I was so against the idea. I am glad I
trusted the design and left it original. In the future I will listen, lol, well
try to.
Hank
On Sat, 8/9/14, via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
Subject: Re: [PSUBS-MAILIST] Gamma test dive
To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>
Received: Saturday, August 9, 2014, 7:43 AM
I'm happy
to hear that things are smoothing out. The MBT air trick is
like magic, right? The old Perry boats had very elaborate
variable ballast systems, custom under deck tanks, 4-piston
pumps, all SS valving and plumbing, etc. And of course we
used it to find that sweet spot you mentioned and then
pretty much ignored it afterwards.
Vance
-----Original
Message-----
From: hank pronk via Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
To: Personal Submersibles General Discussion
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
Sent: Sat, Aug 9, 2014 7:28 am
Subject: Re: [PSUBS-MAILIST] Gamma test dive
Vance,
I have to admit, you were right about how easy it is to
operate. I also find it
more fun and interactive than using a VBT. The trick seems
to be, to have the
weight of the sub in the sweet spot. I just got lucky and
had the weight
perfect right from the start. I mean I had it calculated
just perfect :-)
Now that I know this will happen, I will simply turn on my
emergency air supply
and give a little shot of air to return to my set point.
When the cabin
pressure has risen in past tests, I hit the air compressor
for a couple of
seconds and it is corrected right away.
The onboard air compressor was a savior at the lake. I was
able to refill both
hp tanks at the dock. I used four tanks of air.
I had zero leakage from windows ect. The hatch seal leaks
at the very start but
stops right away when I dive. The hatch dogs need to be
built up with some
weld. The dogs are new but the CT has grooves worn into the
steel from being
closed a million times or so.
Hank
On Fri, 8/8/14, Vance Bradley via Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
Subject: Re: [PSUBS-MAILIST] Gamma test dive
To: "Personal Submersibles General Discussion"
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
Received: Friday, August 8, 2014, 11:20 PM
Hank,
I
might drop 2 inches of vacuum from deck temperature to
submerged. Call it 0.5 psi. It was always that cooling
effect that did it. I normally let the hull chill for 5-10
minutes then reset the zero point, as we used the barometer
for an eyeball pressure indicator for CO2 build up and draw
down (ran the scrubber about 15 minutes/hour).
Vance
Sent
from my iPhone
> On Aug
8, 2014, at 10:15 PM, hank pronk via Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
>
>
> Pete LOL I had it right, I am going to
bed--------------------------------------------
> On Fri, 8/8/14, hank pronk via
Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
wrote:
>
> Subject:
Re: [PSUBS-MAILIST] Gamma test dive
> To:
"Personal Submersibles General Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
> Received: Friday, August 8, 2014, 10:13
PM
>
>
> Pete,
> sorry I meant 2
lb positive, can you tell I have been on the
> road for 6 hr and diving for 6 hr.
;-)
>
--------------------------------------------
> On Fri, 8/8/14, hank pronk via
> Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
> wrote:
>
> Subject: Re:
>
[PSUBS-MAILIST] Gamma test dive
>
To:
> "Personal Submersibles General
Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
> Received: Friday, August 8, 2014, 10:01
PM
>
>
> Pete,
> I have
Gamma about 2 lb negative I dump all
>
the
> air in the ballast tanks, then
start
> sinking. As I am
> sinking, I just give a
> swirt of air, with some practice I am
> able
> to stop and
hover. It is way easier than I though it
> would be.
>
>
Hank--------------------------------------------
> On Fri, 8/8/14, Pete Niedermayr via
> Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
> wrote:
>
>
> Subject: Re:
> [PSUBS-MAILIST] Gamma test
> dive
> To:
>
"Personal
> Submersibles General
Discussion" <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
> Received: Friday, August 8,
2014, 9:46 PM
>
>
>
> Hank,
> How you stopping and
hovering. Are
> you
> weighted to neutral
> buoyancy?Are you
> riding the
> bubble?
Doesn't Gamma use
>
> forward motion and a dive plain for
depth
> control?
>
> Pete
>
>
>
-------------------------------------------
> On Fri, 8/8/14, hank pronk
via
> Personal_Submersibles
<<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>>
> wrote:
>
>
>
> Subject:
[PSUBS-MAILIST]
> Gamma test
dive
> To: <a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>
> Date: Friday, August 8, 2014, 7:45
PM
>
>
Today I dove Gamma
> to
> 95
> feet in
> Kimbasket
> Lake
(bush
> Harbour) the
> visibility was
> awful.
>
>
>
> Maybe 2 feet at
best. Big mystery
> though, when I
dive
> to 95 feet, in a
> matter of 5 min the
>
pressure
> inside drops
> by
> 500 feet.
The pressure
>
>
stays right on
> perfect until
> I go deeper.
> My
>
theory, the water is glacier fed, very
>
>
> cold at depth causing the
> temp inside the sub to drop,
>
> creating
> negative pressure. Could that
> be
> it?
> Vance, did
>
that happen in the north
> sea?
> On a positive note,
> I can
> stop in
> the water Colum at any
> depth and hover. I
>
> can
> surface and stop at ten feet
> and
> hover.
>
Hank
>
>
>
>
>
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</tt></pre>
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