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Would it be possible to utilize the space between the SD cylinder and hull as a ballast tank emulating those used on real subs wherein the ballast tank is located in the annular space between the double hull? The vent valve, either a poppet or slide valve can be hidden underneath the deck casing. The gas cylinder for blowing ballast can then be contained in a single compartment SD.
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Make it simple, make strong, make it work! -
in theory yes, in practice, PITANext time someone points out it takes 42 muscles to frown, point out it will only take 4 muscles to b1tch slap them if they tell you how mnay muscles you need to smile:pop -
Like the 'real' boat, those ballast tanks will have to be split, port and starboard. In US Navy parlance: A tanks and B tanks. That means you either need a common, interconnecting vent riser or a discrete vent valve for each side in order to vent/flood the two sides equally. The difficulty is building up the inboard portions of the ballast tank enclosures to make them water tight.
The ballast tanks, external of the SD as you suggest, now require a mechanical linkage between them and the SD to operate the vent valves. And you'll have to run an external flexible hose and associated plumbing between the SD and tanks to blow them.
But, go ahead and build up a ballast sub-system as you suggested. Let us know how it works out for you.
David,Who is John Galt?Comment
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Or, in other words:
Make it simple, make it strong, make it work!Who is John Galt?Comment
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Why do I need to make an A and B tank? Can't I just use a single tank that straddles over the SD? A single tank is easily positioned at the boats CB.
Correct. Or you could use a solenoid valve to vent the BT.
Something like what you use in your torpedo launcher.Make it simple, make strong, make it work!Comment
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