[PSUBS-MAILIST] Personal_Submersibles Digest, Vol 50, Issue 91
peaceroom via Personal_Submersibles
personal_submersibles at psubs.org
Thu Aug 24 17:13:11 EDT 2017
Thank you! Mike
Sent from my Samsung device
-------- Original message --------
From: via Personal_Submersibles <personal_submersibles at psubs.org>
Date: 8/24/17 4:50 PM (GMT-05:00)
To: personal_submersibles at psubs.org
Subject: Personal_Submersibles Digest, Vol 50, Issue 91
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Today's Topics:
1. Re: EBA!!! (David Colombo via Personal_Submersibles)
2. Re: Islamorada Trip Report...
(Cliff Redus via Personal_Submersibles)
----------------------------------------------------------------------
Message: 1
Date: Thu, 24 Aug 2017 12:14:54 -0700
From: David Colombo via Personal_Submersibles
<personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion
<personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] EBA!!!
Message-ID:
<CAHHFyEE4eg3qOtS+cKmmkhv9OkGu4xBkoRE9ytOA=n1-9GBS1w at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Hi Scott,
Are you taking orders or deposits for the unit. Any ideas as to the
delivery schedule of the units? Any dimensions and or pictures would help
for placement in the SeaQuestor would be helpful.
Best Regards,
David Colombo
804 College Ave
Santa Rosa, CA. 95404
(707) 536-1424
www.SeaQuestor.com
On Thu, Aug 24, 2017 at 7:24 AM, via Personal_Submersibles <
personal_submersibles at psubs.org> wrote:
> Hank,
>
> I completely understand being so into the project a lot of "what if"
> scenarios are never considered. That is one of the reasons, of the 14
> people that work on Pisces VI, one of them does nothing but safety and
> writing the operations manual. The Pisces VI used a EBA built by Drager
> called the Oxy-SR 30M. It is basically the same thing KISS and Pisces
> developed except it only lasted 30 minutes, did not have the ability to
> hook up comms, and costs more.
>
> The Pisces VI has a lot more safety devices built into her, most of which
> are over kill for a Psub, but this is an area where I see most of the psubs
> lacking (including my own KW350 "Trustworthy").
>
> Thank you,
> Scott Waters
>
> > -------Original Message-------
> > From: hank pronk via Personal_Submersibles <
> personal_submersibles at psubs.org>
> > To: Personal Submersibles General Discussion <
> personal_submersibles at psubs.org>
> > Subject: Re: [PSUBS-MAILIST] EBA!!!
> > Sent: Aug 24 '17 05:40
> >
> > Scott,
> > I have to admit that I have not put so much thought into that
> > scenario. I think because I (we) spend so much time and effort
> > installing wiring with fuses and breakers that I have a false sense of
> > security where short circuits are concerned. I am glad you brought it
> > up and I am sure in the future you will be pointing out more risk
> > assessments. We are lucky to have you with us.
> > What did Pisces VI have originally?
> > Hank
> >
> > On Wednesday, August 23, 2017, 11:22:46 PM MDT, via
> > Personal_Submersibles <personal_submersibles at psubs.org> wrote:
> >
> > I guess I should mention some other reasons why this unit is worth it
> > *It has a 3hr breath time
> > *It can be hooked up to u/w comms to keep communications with the
> > surface while still breathing safe air
> > *It is compact (unlike the BioMarine units that a lot of submarines
> > use for their EBAs)
> > *Fully enclosed mask which makes donning way faster than a reg and
> > mask that most BIBS use
> > *All parts are professionally built to the KISS standard. (If you have
> > ever dove a KISS rebreather you will know what I mean
> >
> > Probably one of the most important things I learned at my month at sea
> > with Woods Hole and the DSV Alvin is the importance of actually
> > running realistic drills of emergency situations. This was made
> > bluntly obvious to me when we really started talking about it. For
> > example has anyone on psubs actually done a smoke in cabin drill from
> > operational depth? I think if you do you will be shocked. Trying to
> > don a BIBS and mask, ensure passengers get their BIBS and mask donned,
> > locate the issue, isolate the issue, get the submarine on it's way up,
> > communicate with the surface, on the way up (which is probably at a
> > full blow), slow the accent, vent the cabin from the BIBS at a slow
> > rate so you don't blow a viewport or blow the hatch dogs and flood the
> > submarine at 10 to 30 feet likely drowning everyone. Now that you have
> > done this with a drill add the stress level and I think you will see
> > why it is unacceptable. I know there was a comment on a hour of BIBS
> > usage only brought up the p!
> > ressure about 15psi. I would challenge you to do the calcs to see at
> > what pressure a viewport or the hatch fails from internal pressure. I
> > think again you will be shocked.
> >
> > I have learned a lot in my career with submarines and I know psubs is
> > committed to safety above all other and I would love to help make it
> > safer. This is the reason why I am pushing this so hard and sharing
> > the discount. If you take nothing else from this e-mail, then I urge
> > everyone to actually run their emergency plans under controlled
> > circumstances then evaluate afterwards and ask, "with the stress level
> > of a real situation, is this a good plan?".
> >
> > Thank you,
> > Scott Waters
> >
> > > -------Original Message-------
> > > From: Alan via Personal_Submersibles
> > <personal_submersibles at psubs.org>
> > > To: Personal Submersibles General Discussion
> > <personal_submersibles at psubs.org>
> > > Subject: Re: [PSUBS-MAILIST] EBA!!!
> > > Sent: Aug 23 '17 22:43
> > >
> > > Brian,
> > > I am not an expert on rebreathers but
> > > in a submarine, could you have a lung with full face mask & 3 hoses
> > > attached to it. One hose pushes on to the submarines O2 outlet,
> > > & the other 2 to your CO2 scrubber inlet & outlet. Manually control
> > > the volume of the lung or set up some sort of bellows add system!
> > > In a 1 ton volume submarine you would have over an hour of
> > breathing
> > > off a standard regulator & air before you doubled the pressure
> > inside
> > > the sub anyway.
> > > I am installing ptfe insulated wiring on the inside of my sub to
> > avoid
> > > any
> > > fires with that, but you can't guarantee what's in all the
> > electronics
> > > you
> > > put in your sub!
> > > Alan
> > >
> > > Sent from my iPad
> > >
> > > On 24/08/2017, at 3:11 PM, Brian Hughes via Personal_Submersibles
> > > <personal_submersibles at psubs.org> wrote:
> > >
> > > > My friend Tom Rose's $100.00 USD rebreather. Unfortunately, a few
> > > > years ago he died of a heart attack. Tom was a character.
> > > >
> > > > I've been contemplating making something similar out of a piece
> > of
> > > > acrylic pipe, like an old style canister light battery holder,
> > and
> > > > an MSA mask. Add a stub for O2 addition. Before I got into this
> > > > psubs hobby I use to build DIY mixed gas rebreathers.
> > > >
> > > >
> > >
> > http://web.archive.org/web/20080420110800/http://www.
> atlimp.com/pend2.htm
> > > >
> > > > Get Outlook for Android
> > >
> > > > _______________________________________________
> > > > 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
> > >
> > _______________________________________________
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> > 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
> >
> _______________________________________________
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>
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Message: 2
Date: Thu, 24 Aug 2017 15:50:42 -0500
From: Cliff Redus via Personal_Submersibles
<personal_submersibles at psubs.org>
To: Personal Submersibles General Discussion
<personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST] Islamorada Trip Report...
Message-ID:
<CAK4DN4DvKK1Hw_hA-hbDd48vV16dRSGk2H9hN_bWSBKQ0votnA at mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Just uploaded to Youtube a bunch of pictues from the 2017 PSUBS Regatta.
https://www.youtube.com/watch?v=L3xPUFGvYDM&t=5s
Regards
Cliff
On Mon, Aug 7, 2017 at 6:26 PM, Cliff Redus <cliffordredus at gmail.com> wrote:
> Big thanks Doug for posting dive report and for you and your mom and dad
> for hosting us last week. You guys did a magnificent job. This was the
> best sub trip of my life!
>
> I spend the day organizing the video and pictures from the trip and mailed
> them to Alec who has graciously agree to edit into a video of the 2017
> Psub Regatta.
>
> I still need to review the data I logged from the trips but the key points
> were the first ocean side dive was to the coral heads which is 3.9 miles
> from Doug's house so 7.8 miles total tow with average cabin temp of 93F and
> RH of 80%. Average speed was about 4.5 MPH. As long as we ran partially
> submerged to was hot but fine. This was a test dive to see if we could get
> out deeper. Water was not clear at this location. The deeper dive on Aug
> 3rd was out to the edge of the deep water. The 7.8 miles from Doug's house
> (bay side) to the dive site was smooth and we ran submerged so even thought
> the cabin temp and RH were high, it was not bad at all as it was a smooth
> tow and there were thinks to see on way out. At the second dive site the
> water was 100 ft deep and very clear with 4-6 ft swells. Could see
> the sub on the bottom from the Boston Whaler. The tow back was rough.
> With 4-6 ft following seas, it was like being on a roller coaster both in
> the boat and in the sub. Second dive had a total of 15.6 miles of towing at
> 4.5 MPH, 94F and 84% RH and hatch closed time of around 5 hours. I did not
> loose my cookies but it was close.
>
> As Doug noted, the consensus of all was that we need a tender vessel with
> launch capability to get the subs out to the dive sites without towing.
> Towing subs sucks. All survived but I used up all my on board water and
> upon making it back to the beach, consumed several gallon of water. We
> were all pretty whipped. All in all, it was quite an adventure.
>
> More latter.
>
> Cliff
>
>
>
> On Mon, Aug 7, 2017 at 4:53 PM, Douglas Suhr via Personal_Submersibles <
> personal_submersibles at psubs.org> wrote:
>
>> Greetings PSUBS group, Douglas Suhr here to share my take on the 4-day
>> sub operation we just completed in Islamorada, FL (July 31st, August
>> 1-3).
>>
>> Wow, what a whirlwind! So July 31st was really an arrival / setup day
>> with August 1-3 being true operational days. Though it was unfortunate
>> that Alec wasn't able to make it with Shackleton, we had our hands
>> full with Cliff's R-300. Without Shackleton, we also had enough time
>> to get Snoopy set up and lowered into the canal for some basic diving.
>>
>> List of Crew: Dan Lance, Steve McQueen, Cliff Redus, Rick Maxwell,
>> River Dolfi, Mike Patterson, Doug, Sarah, Douglas Suhr.
>>
>> This was my first time meeting Dan Lance, a (retired) saturation diver
>> and commercial welder. What a pleasure to have him join us on this
>> operation. Dan is modest, but most willing to share his knowledge and
>> extensive experience with a newbie like me. So pleased to have chatted
>> with him in the Keys. During the towing of the R-300, Dan manned the
>> tow line and helped with comms.
>>
>> Steve McQueen and River Dolfi did awesome jobs as our frog men.
>> Filming, attaching / detaching davit and tow lines, etc. they were
>> both in and out of the water quite a bit (especially Steve). I think
>> River took a little jelly sting for the team. What troopers!
>>
>> Cliff and his assistant Rick are such a joy be around. Rick is one of
>> the friendliest people you'll ever meet (and even brought a gift for
>> the group: a watermelon, straight from Texas!). Cliff is always
>> willing to share his expertise (and sub, too) with anyone who'd like
>> to learn more. I know that between Dan Lance and Cliff, I learned more
>> than I can remember last week.
>>
>> Mike Patterson, mom, dad and myself were all just providing whatever
>> kind of "troop support" we could to Cliff and the R-300.
>>
>> River, Steve and Myself got in some dive time on Snoopy in the canal
>> (which was great), but I think the biggest accomplishment was getting
>> the R-300 out a ways into the ocean.
>>
>> Our Boston Whaler (a 25' boat with a single 250hp Yamaha) was able to
>> tow the R-300 out about 5 miles into the ocean (at about 4mph). We
>> were in radio communication with Cliff most of the time, though we did
>> suffer a few intermittent losses in comms. When we got to a spot about
>> 100 feet deep, we started to slow down a bit and at that point the tow
>> line hook (an admittedly cheap thing) let loose(!) so we decided that
>> we had reached our dive location. We switched from marine radio to OTS
>> and Cliff started down. Visibility was supurb! As Cliff neared the
>> bottom at 100 ? 110 feet, he was still quite visible from the Whaler!
>> His 18 foot long R-300 looked to be about 3 inches long, but wow did
>> it ever stand out from the rest of the sandy bottom. Cliff spent about
>> an hour "flying" his sub, surfacing, diving and maneuvering about,
>> testing systems and observing the ocean around him. By the time Cliff
>> surfaced and we towed back to port Antigua, elapsed time stood at 4.5
>> / 5 hours (estimate). Cliff said that he stayed cool by the water
>> flowing over the sub's dome hatch while in tow. Upon returning I think
>> we were all ready to take a break, but everyone felt great
>> accomplishment with the mission.
>>
>> A couple of lessons I took away from the tow out: We need better tow
>> equipment (better line, hardware and maybe a quick release). Our boat
>> REALLY needs a GPS (still don't have one). Towing into waves isn't so
>> much a problem, but when towing with the waves, our tow line needs to
>> be measured so as to sustain the proper distance between tow vessel
>> and sub (otherwise the sub and boat are constantly slacking and then
>> jerking, stressing the tow line and making it difficult for boat and
>> sub to track straight).
>>
>> The devotion of our crew was amazing, even in the heat and the waves
>> everyone did their jobs. Managing even a small sub operation like this
>> is more work / effort than meets the eye, that's for sure. At dinner,
>> one of the main discussions revolved around a support vessel that can
>> carry a sub or two on board, eliminating the slow, time consuming tow
>> out to an ocean dive site. Dan Lance shared details on his support
>> vessel project, which is no doubt going to be a dream in terms of
>> logistics. Hopefully when said vessel is ready to sail, Dan will lend
>> its services to host a diving event! ~ Douglas S.
>>
>> _______________________________________________
>> Personal_Submersibles mailing list
>> Personal_Submersibles at psubs.org
>> http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles
>>
>
>
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