Hello and welcome to our community! Is this your first visit?
Register
Page 2 of 4 FirstFirst 1234 LastLast
Results 11 to 20 of 34
  1. #11
    Kit Junkie Kermit's Avatar
    Join Date
    Dec 2012
    Location
    Hexham
    Posts
    907
    Likes (Given)
    197
    Likes (Received)
    250
    I use a wing but, for buoyancy there's not a lot of difference between a wing and a bcd until you start carrying a lot of gas. The concept is to be neutrally buoyant at 3m with an empty tank. Extra gas needs to be added to compensate for the weight of gas you start your dive with (about 2kg of air in a full 12??) and the compression of a neoprene suit (drysuit or wetsuit) at depth.

    I use a membrane drysuit and find that I can adjust my buoyancy when using a single cylinder quite comfortably just adjusting the amount of gas in the drysuit, other people use a constant volume drysuit and adjust with a bit of gas in the wing/bcd. Either way is suitable as long as it suits you.

    The point is there aint a lot of gas in your wing/bcd even if you are using it as your sole method of buoyancy adjustment. With me, there is no gas in my wing unless I'm sitting on the surface. If you still have gas in your wing/bcd with an empty tank at 3m then you are overweighted.

    Trim is a different thing completely. This depends on WHERE the weight is situated. Moving your tank up and down in the straps has a large effect. Also, think about where your weights are situated. For me, I have weights in a pouch by my belly and some strapped to my tank. This is just a personal thing, the important thing is that I know exactly where to position my tank and weights to get the trim I want and I make sure everything is in the same place (exactly) whenever I dive.

    An underwater camera is a very handy tool. How you feel your trim is in the water can be very different to how it actually is as shown on a camera.

    Best of luck,
    kind regards
    Ian
    I'll think of something witty some time soon.

  2. #12
    M@ o2dependant's Avatar
    Join Date
    Dec 2012
    Location
    South Wales
    Posts
    217
    Likes (Given)
    33
    Likes (Received)
    88
    Thanks all!!

    I think I will go with the wing as even though I did use it a handfull of times I just felt like we had a better connection.

    Once I get all my gear I will likely get a day in with somone who can help me fine tune things.


    Was not aware of the friday ruckus!!

  3. #13
    Won't Mention Miflex. Graham Smith's Avatar
    Join Date
    Dec 2012
    Location
    Eastbourne.
    Posts
    732
    Likes (Given)
    216
    Likes (Received)
    704
    Quote Originally Posted by o2dependant View Post

    Was not aware of the friday ruckus!!
    It's an old tradition from "The other place". There are some fairly contentious topics such as using a Pony, Wing v BCD, BCD v Drysuit for buoyancy, and many others.....All guaranteed to start up a heated debate otherwise known as "The Friday Ruck".

    This thread (and topic) looked an ideal candidate for a Friday....

    G
    If Eastbourne Had helium.....

  4. #14
    Bawbag Regthing's Avatar
    Join Date
    Dec 2012
    Location
    Overlooking the Clyde
    Posts
    63
    Likes (Given)
    12
    Likes (Received)
    15
    A wing and back plate is also good as the weight of the back plate will replace some of your lead, for dry suit diving get stainless steel, not aluminium. It also places the weight higher up your body and closer to your centre of gravity.

    There are also weights available that fit in the groove of the back plate, between twin sets, in pockets on can bands etc that allow you to position the weight where you need it to achieve the trim you want.

  5. #15
    Complete member ootini's Avatar
    Join Date
    Dec 2012
    Location
    Wales
    Posts
    1,032
    Likes (Given)
    403
    Likes (Received)
    360
    I now dive a plate, oph, wing and twin 12s. In fresh water I need no extra weight, in salt I stick two small shotbags in pockets on the waist band. I love the lack of clutter and shit in front of me when using a wing/oph compared to a traditional bcd.

  6. #16
    Hard Astern Nitnab Nhoj's Avatar
    Join Date
    Dec 2012
    Location
    Twickenham
    Posts
    1,552
    Likes (Given)
    179
    Likes (Received)
    960
    The air in a jacket-style BC or a wing-style BC goes to the same place when the correctly weighted diver is horizontal ie. the highest point behind the shoulders. The flotation low down in a jacket-style BC only comes into effect when the diver is horizontal with it fully-inflated at the surface. Sounds like the OP needs to look at the position of his ballast rather than the BC.
    Last edited by Nitnab Nhoj; 05-01-2013 at 11:55 AM.
    It's nice to be nice and it's nice to use punctuation to add comprehension to a communication.

  7. #17
    What could possibly go wrong?
    Join Date
    Jan 2013
    Location
    North Yorkshire
    Posts
    256
    Likes (Given)
    4
    Likes (Received)
    137
    FWIW, if you're also diving in a shorty the bare legs will be less buoyant than legs clad in neoprene, the reverse of floaty feet in a drysuit.

  8. #18
    Rob Hill
    Join Date
    Dec 2012
    Location
    Jersey, Channel Islands, Jersey
    Posts
    1,116
    Likes (Given)
    206
    Likes (Received)
    514
    If you can get ankle weights is there anyone who does ankle floats?

  9. #19
    What could possibly go wrong?
    Join Date
    Jan 2013
    Location
    North Yorkshire
    Posts
    256
    Likes (Given)
    4
    Likes (Received)
    137
    Some of that thick foam pipe lagging?

  10. #20
    M@ o2dependant's Avatar
    Join Date
    Dec 2012
    Location
    South Wales
    Posts
    217
    Likes (Given)
    33
    Likes (Received)
    88
    Quote Originally Posted by Mike Ward View Post
    FWIW, if you're also diving in a shorty the bare legs will be less buoyant than legs clad in neoprene, the reverse of floaty feet in a drysuit.
    Interesting. This was actually in a 3mm shortie( and a first and only). Usually I'm in a full suit. Was weighted properly I checked in and out


 
Page 2 of 4 FirstFirst 1234 LastLast

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •