I know I have to get registered for other forums. In the meantime, another interesting note.
The trim of the boat may from time to time require readjustment. It is often neglected that the compressed air in the flasks can easily weigh four tons or more.
The process of adjusting buoyancy based on various changes which occur on the boat is known as "compensation". There are three various chart/mathematical oriented short cuts which can be used to rapidly compute appropriate compensation.
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