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Adding Dromedary as Redundant Buoyancy in Stealth Tec

Discussion in 'Sidemount Diving' started by RayfromTX, Sep 24, 2019.

  1. RayfromTX

    RayfromTX Student Of Gas Mixology Staff Member ScubaBoard Sponsor

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    This would be for diving wet with steel tanks. Also carry a lift bag. Currently diving in a location where I could crawl out if I needed to but that won’t always be the case. I already own the dromedary bags. The drink tubes are 16$ to add.

    Still looking for someone that might have experience with doing it. It’s not going to add weight but might reduce lift capacity a bit.
     
  2. happy-diver

    happy-diver Skindiver Just feelin it

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    not when it's in there deflated man
     
  3. rjack321

    rjack321 Captain

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    eh even without a wing on stop its not much lift

    If you do try and inflate it you'll be undoing the wing bungies to be able to inflate it orally
     
  4. RayfromTX

    RayfromTX Student Of Gas Mixology Staff Member ScubaBoard Sponsor

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    it's a good point that I am unlikely to get the full 22 pounds of lift and releasing the wing bungees may help but sounds like a cluster of things to do. Deploying a bag is a bit to do in a time critical situation. The failure that would be far most likely to result in wing gas failure would be an inflator elbow detachment or similar. 20 pounds of lift may not be enough to get neutral depending on the amount of gas you have used but it may be plenty to be able to swim up the rest depending....something to consider and test with a hard bottom first. Thanks for your input.
     
    RyanT and RainPilot like this.
  5. RayfromTX

    RayfromTX Student Of Gas Mixology Staff Member ScubaBoard Sponsor

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    Getting a like from your sidemount instructor is always nice.
     
  6. rjack321

    rjack321 Captain

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    To get the full lift it'll be a really fat balloon on your kidney's. I have the 10L and even without a wing on top of it I really only use about 4L of its capacity before its a big uncomfortable pillow.

    If you are diving wet and need the capacity of steel tanks then I assume you are doing deeper dives with trimix? They aren't so heavy if you dive 18/45 or 15/55 etc. But you'll lose a lot of suit buoyancy if you have a thicker wetsuit (5mm+). If you do have a thicker wetsuit I would rethink that choice. Getting cold on a trimix dive with deco has led to IPE in the past.

    If getting cold isn't really a risk (like in the red sea) then the thinner suit (1-3mm) wont be losing much buoyancy anyway. And the trimix fill in the steels wont be so heavy that you cant swim it up when full. If the tanks are near empty when the wing hypothetically fails then you're not in dire straights either way.

    You can demo "trimix in steels" by taking them out about half full.
     
  7. KWS

    KWS ScubaBoard Supporter ScubaBoard Supporter

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    I have thought about this many times, and all I see is carry a lift bag or something like that. That works fine if you have a hard bottom to rig this on. Why does not wet suits have the ability to inflate a portion also like the horse collars we used to wear. easy to do with a BPW but not perhaps with a jacket.
     
  8. RayfromTX

    RayfromTX Student Of Gas Mixology Staff Member ScubaBoard Sponsor

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    Where I am any dive that will need trimix will also require a drysuit which is a real killer when the temps are near 100 at the surface. During those times a 5 mil is perfectly fine to 120 or so and the twin lp85s and a stage or two will allow for a nice long bottom times at depths where trimix isn't worth the cost. I can blend my own but right now just getting it means adding your name to the stack of unfilled orders.
     

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