Ballast Bladders

[Martin Sanderse <sanderse@interlog.com>]

Is anyone using soft external ballast bladders for emergency ascent or surface 
freeboard?

There are some advantages,like opportunity for a smaller sub cross section, decreased 
mass of flooded tanks, better streamlining etc.

Unfortunately, there are some other problems,like containment of the inflated bladder, 
possible bursting as you ascend, volume of blowing air, reliability etc.

Any comments?

-- 
Martin Sanderse
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The Ingenuity Group Inc.                 http://www.ingenuitygroup.com/~tigroup/
Professionals harnessing quantitative methods for effective management decisions.