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Thanks to all for the good thread.
Would an amp meter on each motor circuit be any use? I thought it may give
me a heads up if one motor was different than the others and needed
attention.
On the internal pressure thing, I had planned on using a simple manometer
like I used when working doing air balance. It's a tube that shows water column.
I was going to modify one by plugging one end with a valve, and setting it at
atmospheric when the hatch is open. With the valve closed, I should be
able to tell if the internal pressure changes ( up or down ) and adjust
accordingly. I'm installing a small tube/valve on the hatch to release
internal air in case I need to flood the sub for escape, so I can dump the last
bubble before opening the hatch. I haven't figured out how to reduce the
internal pressure while still submerged but thought maybe a small air
compressor blowing into a tank would work. Then when I get close to the surface,
dump the tank.
Frank D. Create a Home Theater Like the Pros. Watch the video on AOL Home. |