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King_Zog 04-18-11 07:47 AM
Yeah, that makes perfect sense.

But I still doubt that a world war 2 era submarine would be able to hover at any depth. Without computerised aids to constantly monitor the boat's trim and accurately regulate the boat's ballast tanks I would think they would be constantly either rising or falling without forward motion. But perhaps I am underestimating the capabilites of a pre-computer dependant society.

Gerald 04-18-11 07:52 AM
She can handle 270.

Jimbuna 04-18-11 07:55 AM
Quote:
Originally Posted by King_Zog (Post 1645668)
Yeah, that makes perfect sense.

But I still doubt that a world war 2 era submarine would be able to hover at any depth. Without computerised aids to constantly monitor the boat's trim and accurately regulate the boat's ballast tanks I would think they would be constantly either rising or falling without forward motion. But perhaps I am underestimating the capabilites of a pre-computer dependant society.
Then read #38, 43, 44 and 45.

reignofdeath 04-21-11 10:26 AM
Quote:
Originally Posted by jimbuna (Post 1645677)
Then read #38, 43, 44 and 45.
So does this mean my explanation was actually somewhat right?? Heck I was just guessing on it really.:hmmm:

Jimbuna 04-21-11 12:33 PM
Quote:
Originally Posted by USNSRCaseySmith (Post 1648017)
So does this mean my explanation was actually somewhat right?? Heck I was just guessing on it really.:hmmm:
More or less...technology during WWII wasn't advanced enough to easily allow a submersible to 'hover'.

I'm not saying it couldn't be done but simply that it extremely difficult, especially when motionless.

Sailor Steve 04-21-11 01:50 PM
And while it might be done it would require running the pumps to maintain trim, which is just as noisy as running the electric motors to move the boat. Purpose defeated.


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