Test Dive advice? - Page 4

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

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.

04-21-11, 10:26 AM

Quote:

Originally Posted by jimbuna

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.

Jimbuna · 04-21-11, 12:33 PM

Quote:

Originally Posted by USNSRCaseySmith

So does this mean my explanation was actually somewhat right?? Heck I was just guessing on it really.

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.

04-18-11, 07:52 AM	#47
Gerald SUBSIM Newsman Join Date: May 2008 Location: Close to sea Posts: 24,254 Downloads: 553 Uploads: 0	She can handle 270. __________________ Nothing in life is to be feard,it is only to be understood. Marie Curie

04-21-11, 01:50 PM	#51
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	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. __________________ “Never do anything you can't take back.” —Rocky Russo

04-18-11, 07:47 AM	#46
King_Zog Soundman Join Date: Mar 2011 Location: London Posts: 143 Downloads: 31 Uploads: 0	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.