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Place of dive tables in modern diving

Discussion in 'Basic Scuba Discussions' started by CAPTAIN SINBAD, Feb 16, 2018.

  1. scubadada

    scubadada Diver Staff Member ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Philadelphia and Boynton Beach
    Hi Martin,

    I can only hope that I'm lucky enough to get to your part of the world where you might have the chance. Your posts regarding Suunto algorithms had been extremely useful and informative, not generally available.

    Thanks, Craig
  2. Diving Dubai

    Diving Dubai Instructor, Scuba

    # of Dives: 500 - 999
    Location: Dubai UAE
    Hi Craig

    Come on over, I promise to be nice, I’ll even put you up. I’m sure you’d enjoy the diving different as it is. We’d have fun, both diving and non diving. Open offer.
    stuartv likes this.
  3. scubadada

    scubadada Diver Staff Member ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Philadelphia and Boynton Beach
    Thank you my friend. I would love to visit and dive with you and with @RainPilot Brendan. Though perhaps unlikely, I will keep your invitation in mind for future trips. The power of SB can be dazzling :)
    stuartv likes this.
  4. Jay

    Jay Need to dive more!

    # of Dives: 100 - 199
    Location: Melbourne, OZ.
    I did some analysis of SL 2016 and 2017 data.

    In 2016 SL used the same dive profiles as previous years. Their 2017 is the same depth and dive time profile and I assume it's exactly same across all time/depth slices, so I've also combined the data. Links to SL's articles and 2016 dive profile graph: 11 New Dive Computers Tested and Reviewed By ScubaLab 11 New Dive Computers Tested By ScubaLab In 2017 https://www.scubadiving.com/sites/s...6-scubalab-dive-computer-chamber-profiles.pdf

    I took an average of their arrival and departure NDLs at their given depths and then averaged those results. The %'s are versus the NDL in the top row, as are the differences in minutes.

    Dive 1 & 2 data (had to split it so it's legible):

    Screen Shot 2018-03-07 at 9.14.24 pm.png

    Dive 3 & 4 data

    Screen Shot 2018-03-07 at 9.14.33 pm.png

    Some observations I would make from this are:

    The DSAT computers start on top and ~end on top after 4 dives.
    ZHL-16C: dive 1 on the Perdix seems to be mid of the pack, then it climbs to be around the DSAT computers ,and interestingly ends on top for dive 4 (by ~8min) - almost to a point of being too aggressive (and it's only x/95 GF, but a lot of that NDL was generated/displayed at the 30ft part of the dive). On med cons (GF x/85) it shows it gets more relatively aggressive in dives 3&4.
    PZ+: Sheerwood Sage is pretty close to Perdix but the AquaLungs seem to be in a boat of their own down the scale. [algo modification ??]
    RGBM: dives 1 & 3 they seem mid-pack (diff of ~4-7mins, ~20%), dive 2 seems moderately affected (~15min / 32%) and dive 4 is significantly lower. I was expecting a different result based on @Storker's above data.
    ScubaPro seem to be in a world of their own, mostly near the bottom.
    Seac Jack seems to be where a 16B should be found.

    In 2017 there was one data point missing from SP G2 on Dive #1. In 2016 there were three data points missing in dive 1; two for the Perdix and one for the SP Mantis 2. In both of the above cases I have guesstimated those points.

    Screen Shot 2018-03-07 at 9.09.06 pm.png

    p.s. I'm fairly sure I've got my computer alto's right, but had a hard time finding reliable Sage info. Please feel free to make corrections / add details!
    Last edited: Mar 7, 2018
    northernone likes this.

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