PaulChristenson
Contributor
diveman7683:I'm not trying to be a smart***, but, how does a back inflate BC squeeze your guts?
OK...I'll be one...
That is when the Wing is between you and the plate...
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diveman7683:I'm not trying to be a smart***, but, how does a back inflate BC squeeze your guts?
Blitz:I have been diving a back inflate of some kind for years and have never experienced this "facedown" effect that I am always hearing about. I have dove bc's and backplates, warm water and cold and in none of those situations have I been pushed face first. What Lamont said about the AL tanks makes some sense, but I have dove those and can't remember that problem.
Simple physics, if you've got too much weight in front and too much bouyancy behind relative to everything else it happens. Remember that peoples body shapes and compositions and other stuff are going to play into it too, so what isn't a problem for you may be for someone else. Your usual BI does not have a heavy plate in back. And if it's got WI pockets in front they are sometimes out from the body a little more than if you were wearing a weightbelt, which would make it worse.Blitz:I don't doubt at all that it happens, I am wondering about the mechanics. Like you said, trim weights, tank height. Is it more common with anxious divers? Stuff like that. I guess I am trying to get at the 'the reason' it happens.
Damselfish:Maybe a crotch strap would help prevent someone from feeling they need to add more air on the surface, but only if the BC is actually riding up to begin with. I think a well fitting BC can and should stay put on it's own without needing extra straps as band aids.
I wasn't talking about harnesses. I was talking about BI BCs. If you need to add a crotch strap to keep a BC in place (that wasn't intended to have one) I believe it's a bandaid. Maybe a solution for someone, but still a bandaid.cool_hardware52:"Band aid" is not an accurate description of a crotch strap on a Hogarthian Harness, it's a basic element.
Tobin
Damselfish:I wasn't talking about harnesses. I was talking about BI BCs. If you need to add a crotch strap to keep a BC in place (that wasn't intended to have one) I believe it's a bandaid. Maybe a solution for someone, but still a bandaid.
yes, sometimes. A bandaid for a bad design, or a bandaid for poor fit, whatever.cool_hardware52:Or maybe a sign of poor original design.
Tobin
Tom,Tombo92551:I tried a rear inflation BC yesterday and no matter how hard I tried, I ended up face down in the water. I usually use a jacket style and have herad that the back inflation unit is really good for trim.
Any thoughts on what I can do to keep my face out of the water on the surface. I prefer to swim on my back or rest on my back on the surface..
Thanx
Regards
Tom