[PSUBS-MAILIST] Gamma test dive

Sat Aug 9 20:55:22 EDT 2014

Hi Pete,
I am using a Cornelius aircraft compressor, 24V DC 3,000psi. It is powered off batteries. 
I am very pleased with the battery performance, I ran the entire day off one bank and the voltage only dropped slightly by days end.  I will charge them tomorrow and my charger will tell me what percent they are at.  I am sure I could travel several miles with no worries.  
When I want to drop the cabin pressure, I hit the compressor and it sends the air to the hp holding tanks.  I am talking .5 psi drop in the sub.  
Hank

On Sat, 8/9/14, Pete Niedermayr via Personal_Submersibles <personal_submersibles at psubs.org> wrote:

 Subject: Re: [PSUBS-MAILIST] Gamma test dive
 To: "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
 Received: Saturday, August 9, 2014, 7:11 PM

 Hank,

 What air compressor are
 you using ? Does it run off your batteries ? How is your
 battery performance?  "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."-- Where is this air going ?

 Thanks Pete

 --------------------------------------------
 On Sat, 8/9/14, hank pronk via
 Personal_Submersibles <personal_submersibles at psubs.org>
 wrote:

  Subject: Re:
 [PSUBS-MAILIST] Gamma test dive
  To:
 "Personal Submersibles General Discussion" <personal_submersibles at psubs.org>
  Date: Saturday, August 9, 2014, 6:28 AM

  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 <personal_submersibles at psubs.org>
  wrote:

 Subject: Re:
  [PSUBS-MAILIST] Gamma test
 dive
   To:
  "Personal
 Submersibles General Discussion" <personal_submersibles at psubs.org>
   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
   <personal_submersibles at psubs.org>
   wrote:
   > 

  > 

 > Pete LOL I had it right, I am
  going
 to

 bed--------------------------------------------
   > On Fri, 8/8/14, hank pronk via
   Personal_Submersibles <personal_submersibles at psubs.org>
   wrote:
   > 

  > Subject:
   Re: [PSUBS-MAILIST] Gamma

 test dive
   > To:

  "Personal Submersibles General
 Discussion" <personal_submersibles at psubs.org>
   > 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 <personal_submersibles at psubs.org>
   > wrote:
   > 
   >  Subject: Re:

 >
   [PSUBS-MAILIST] Gamma test dive
   > 
   To:

  > "Personal
 Submersibles General

 Discussion" <personal_submersibles at psubs.org>
   >  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 <personal_submersibles at psubs.org>
   >  wrote:
   > 
   >  
   > Subject:
 Re:
   >  [PSUBS-MAILIST] Gamma test
   > dive

 >   To:
   > 

 "Personal
   > Submersibles
 General

  Discussion"
 <personal_submersibles at psubs.org>
   >   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
   <personal_submersibles at psubs.org>
   >   wrote:

  >   
   > 
   > 

 >  Subject:

 [PSUBS-MAILIST]
   >   Gamma test
   dive
   >    To: personal_submersibles at psubs.org
   >    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 

 >   
   > 
   >

  > 

 >

 _______________________________________________
   >    Personal_Submersibles mailing
  list
   >    Personal_Submersibles at psubs.org
   >    http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

  >

   >  
   > 
   >   
   > 
   > 

 > 
   >

 _______________________________________________
   >   Personal_Submersibles mailing
   list
   >   Personal_Submersibles at psubs.org
   >   http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

 > 
   > 

  >

 _______________________________________________
   >  Personal_Submersibles mailing list
   >  Personal_Submersibles at psubs.org
   >  http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
   > 
   >

 _______________________________________________
   > Personal_Submersibles mailing list
   > Personal_Submersibles at psubs.org
   > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
   > 
   >

 _______________________________________________
   > Personal_Submersibles mailing list
   > Personal_Submersibles at psubs.org
   > http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

 _______________________________________________
   Personal_Submersibles mailing list
   Personal_Submersibles at psubs.org
   http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

 _______________________________________________
  Personal_Submersibles mailing list
  Personal_Submersibles at psubs.org
  http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles

 _______________________________________________
 Personal_Submersibles mailing list
 Personal_Submersibles at psubs.org
 http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles