It's a not submersible submarine
.
To make it submersible, there are two different ways:
(A) Using control surfaces, bow planes and tail planes, it works on the principle of hydrodynamics, like the way in aircrafts. Then the sub can dive or surface when it is running at a certain speed,
but it cannot cruise steadily at a fixed depth. I saw someone playing this sort of sub in the Tuen Mun pool. It's not the way I want.
(B) Using ballast tanks and electric pump, by taking water in or out sub can dive or surface in a smooth way.
However, I found both methods not quite practical to be used in the I-19 sub because of the limited space.
In my case, I will glue the upper and the lower hull together after finishing it.
Water can only leak into the sub at the rudder joint, therefore I seal the aft compartment with plastic sheet and water proof sealant.
As it will only cruise on the surface of water, that will do the job for water tight.
BTW, to make a submersible vessel, better water tight measures are needed. There are water-tight cylinders (WTC) equipped control rods and propeller shaft for making model subs.
BUT they are quite expensive and I couldn't find a suitable size to fit into my sub.
For more information, please see the link
http://www.caswellplating.com/models/sub-drivers.html
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本帖最後由 Very_Newbie 於 2009-4-14 05:17 PM 編輯 ]
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