Im not here to debate the pros or cons of pony bottles or what size I should be using. What I want to know is.....How will a 13 cf pony bottle affect my wieghting? I use it primarily with a compressed neoprene drysuit in fresh,cold (40-60 degree) water. I use approx. 28 pounds of weight in most cases. Thanks for the response!
Pony bottle weighting
- Thread starter Tkojis
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nickjb
Contributor
I use this.
http://www.subaqua.co.uk/cgi-bin/cylinder-buoyancy.cgi
The units are metric so you will have to do a little converting. My cylinder works out about neutral so it doesn't change my weighting at all.
http://www.subaqua.co.uk/cgi-bin/cylinder-buoyancy.cgi
The units are metric so you will have to do a little converting. My cylinder works out about neutral so it doesn't change my weighting at all.
Im weighted to be neutrally buoyant near the surface, with no air in the BC, for whichever is the worst case of either main tank near empty with the pony detached or with both the main tank and pony near empty.
Since the pony with regulator is about 2 pound negative when empty, the worst case is with the pony detached. So I ignore the pony in regards to weighting. As to trim, I like to shift one pound from the left (where the pony is stage slung) to the right. The pony is about 5 pounds negative when full. With the pony full and attached Im skewed three pounds to the left, and with the pony detached, two pounds to the right.
Hope this helps.
Mike
Since the pony with regulator is about 2 pound negative when empty, the worst case is with the pony detached. So I ignore the pony in regards to weighting. As to trim, I like to shift one pound from the left (where the pony is stage slung) to the right. The pony is about 5 pounds negative when full. With the pony full and attached Im skewed three pounds to the left, and with the pony detached, two pounds to the right.
Hope this helps.
Mike
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