[PSUBS-MAILIST] Trustworthy Dive Report

Tue May 6 11:53:39 EDT 2014

Just a reminder of the ABS requirements for life support parameter monitoring:

1) Oxygen % by volume, corrected to STP. Operating Range 18% to 23%.

2) Carbon Dioxide % by volume, corrected to STP. Operating Range 0% to 0.5%.

3) Cabin % relative humidity. Operating Range (recommended) 30% to 70%.

Temperature isn't specifically listed, but it's not a bad idea as it is easy to do. Components need to be specified to 40° C, and the temperature affects the % RH. Plus, human comfort comes into play. As % RH increases, so does the required temperature for the same reported level of comfort.

Sean

On May 6, 2014 5:39:32 AM MDT, swaters via Personal_Submersibles <personal_submersibles at psubs.org> wrote:
>David,
>Water temp was 53 degrees and the cabin was about 65 degrees with two
>people. It wad perfect. Humidity was lower than expected. I don't have
>a % though. 
>Thanks,
>Scott Waters
>
>
>
>
>Sent from my U.S. Cellular© SmartphoneDavid Colombo via
>Personal_Submersibles <personal_submersibles at psubs.org> wrote:Hi Scott,
>Great Report!. How was your internal temp and humidity compared the
>water temp.? Love the multiple battery concept. That is the same as in
>the SeaQuestor.
>
>
>Best Regards,
>David Colombo
>
>804 College Ave
>Santa Rosa, CA. 95404
>(707) 536-1424
>www.SeaQuestor.com
>
>
>
>On Mon, May 5, 2014 at 7:39 PM, Alan James via Personal_Submersibles
><personal_submersibles at psubs.org> wrote:
>Congratulations Scott,
>enjoyed the details. That's a powerful headlight, it must be around
>1200 Watt.
>Alan
>
>From: swaters via Personal_Submersibles
><personal_submersibles at psubs.org>
>To: personal_submersibles at psubs.org 
>Sent: Tuesday, May 6, 2014 2:16 AM
>
>Subject: [PSUBS-MAILIST] Trustworthy Dive Report
>
>Yesterday my wife Katy and two other friends took Trustworthy out for a
>series of dive tests. Pictures to be posted soon. We went down 21feet
>at deepest point for about 30 minutes on the longest dive. We did a
>total of 5 dives. The dives went into the night and I got a great
>chance to use my saddle lights, work lights, and head light. The light
>placement and power on Trustworthy were perfect for lighting up the
>under water veiws for passenger and myself. The 55watt halogen work
>lights and saddle lights and the 2,000,000 candle power head light were
>the perfect amount of light. Unlike Trustworthy's first test this time
>I was properly weighted for freash water after adding 325lbs in landing
>skid weights and extra drop weights. I got to do alot of motoring
>around and after some practice, started to get the hang of it. After
>spending some time getting used to things, I gotta say I love the
>Kitteredge motors. They have so much power which is nice when you get
>caught in current or wind and they respond instantly even with the sub
>weighing 4,500 lbs. I used my bank selectors (hp air, O2 air, and
>battery) and I love them. The benifit of draining one tank or battery
>bank at a time is so nice. The underwater comms worked good with the
>acception of a loud ringing noise which I believe a squelch adjustment
>would fix. We did have a few minor problems to note. I had a leak from
>the autimatic cabin equilization valve. Later remembering all "O" rings
>on the sub were the high quaility ones from McMaster Carr and this one
>was a cheap one intended for home plumbing. It worked fine on the first
>dive last fall, but sitting over winter it cracked a little. Moral of
>the story, use good "O" rings. We also are having some weird problems
>with the sonar. It was reading a depth from 8' to 320' wildly so
>something is wrong. I am thinking it might be a connection between the
>transducer and screen. Also experienced a space problem when jamming
>the 50lb tub of sodasorb in the storage compartment. I am going to
>repack the sodasorb in sealed plastic bags prepacked size to fit in the
>scrubbers and then it will fit very easily. One new mod I am going to
>do is put a cabin light in the conn. The two red/white cabin lights in
>the main cabin work well, but while the pilot is in the conn and it is
>dark, you can't read check lists well or read the digital depth gauge
>in the conn. I found myself using a flash light alot.
>The siteings on this trip were
>*zebra muscles
>*rocks
>*mud
>*a large cat fish
>*little worm things swimming to our lights (I think baby fish)
>*a little bass
>*tons of confused Kansans almost crashing their boats while stareing
>
>Thanks for reading,
>Scott Waters
>
>
>
>
>Sent from my U.S. Cellular© Smartphone
>
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