Need some info on diving...

Mauser KAR98K · 02-07-07, 07:28 PM

Hey yall,

Need some info on diving. After the U-Boat has done it's intial dive, would it have to fill its ballast tanks more if they wanted to go deeper? And if so, do they release air back into the tanks to go up, but not surface??

Also, what are the procedures to submerge a U-Boat; I.E. what vents are operated?

Thanks

Mauser.

Mush Martin · 02-07-07, 07:33 PM

in a standard dive
they would
flank ahead on the surface to build speed
down on the planes
under they go
switch to electric motors
level dive at something like 25 metres
trim ballast for neutral bouancy
and use planes and screws
to return to periscope depth.

filling tanks to negative to go deeper yes.
with motors to go faster.
like when the say Blow negative.
choices are negative positive and neutral.

GWX has a minor positive bouancy pulling you up
slowly to about two metres above ordered depth
MM

Ducimus · 02-07-07, 07:48 PM

http://science.howstuffworks.com/submarine1.htm

Brag · 02-08-07, 07:05 AM

With your boyancy near neutral, you control depth mainly with diving planes. To surface, you blow your ballast tanks and use compressed air for that to gain positive bouyancy. For emergency surface, you blow more ballast.

RawRecruit · 02-08-07, 08:26 AM

You should try a bit of scuba diving...that way you get to experience the concepts first hand!

Sailor Steve · 02-08-07, 11:53 AM

Quote:

Originally Posted by Mush Martin

in a standard dive
they would
flank ahead on the surface to build speed
down on the planes
under they go
switch to electric motors
level dive at something like 25 metres
trim ballast for neutral bouancy
and use planes and screws
to return to periscope depth.

filling tanks to negative to go deeper yes.
with motors to go faster.
like when the say Blow negative.
choices are negative positive and neutral.

GWX has a minor positive bouancy pulling you up
slowly to about two metres above ordered depth
MM

Not true.
First the tanks are flooded to negative or neutral bouyancy.
Second power is switched to electric motors.
Third the planes are pointed downward.

In answer to the original question, once neutral bouyancy is established all depth changes are done with the dive planes. The ballast levels recieve minor adjustments if needed.

When surfacing, all water is blown out of the tanks. There is no ballast when surfaced.

bigboywooly · 02-08-07, 11:59 AM

:rotfl:
Nice sig there Steve

Sailor Steve · 02-08-07, 12:04 PM

Believe it or not, I first saw it on a T-shirt.

John Channing · 02-08-07, 05:58 PM

Quote:

Originally Posted by Sailor Steve

Believe it or not, I first saw it on a T-shirt.

You must have followed him/her for five minutes to read it all!

JCC

Mush Martin · 02-08-07, 03:57 PM

Quote:

Originally Posted by Sailor Steve

Quote:

Originally Posted by Mush Martin

in a standard dive
they would
flank ahead on the surface to build speed
down on the planes
under they go
switch to electric motors
level dive at something like 25 metres
trim ballast for neutral bouancy
and use planes and screws
to return to periscope depth.

filling tanks to negative to go deeper yes.
with motors to go faster.
like when the say Blow negative.
choices are negative positive and neutral.

GWX has a minor positive bouancy pulling you up
slowly to about two metres above ordered depth
MM

Not true.
First the tanks are flooded to negative or neutral bouyancy.
Second power is switched to electric motors.
Third the planes are pointed downward.

In answer to the original question, once neutral bouyancy is established all depth changes are done with the dive planes. The ballast levels recieve minor adjustments if needed.

When surfacing, all water is blown out of the tanks. There is no ballast when surfaced.

Well I certainly dont intend to argue with your level of experience steve
I stand corrected and will be more detailed and carful next time.
MM

Sailor Steve · 02-08-07, 05:47 PM

No, by all means check sources. My sub experience is all from books, movies and games. I'm just going from what I've read. Challenge everything. I've been wrong many times.

02-07-07, 07:28 PM	#1
Mauser KAR98K Bosun Join Date: Sep 2006 Location: Tennessee Posts: 68 Downloads: 25 Uploads: 0	Need some info on diving... Hey yall, Need some info on diving. After the U-Boat has done it's intial dive, would it have to fill its ballast tanks more if they wanted to go deeper? And if so, do they release air back into the tanks to go up, but not surface?? Also, what are the procedures to submerge a U-Boat; I.E. what vents are operated? Thanks Mauser. __________________ Mauser mit Dem Mauser. U-51: Terrorizing the North Sea until France is concured! "The Keel Splitter!"

02-07-07, 07:33 PM	#2
Mush Martin Eternal Patrol Join Date: Dec 2006 Posts: 4,398 Downloads: 4 Uploads: 0	Normally what happens is . in a standard dive they would flank ahead on the surface to build speed down on the planes under they go switch to electric motors level dive at something like 25 metres trim ballast for neutral bouancy and use planes and screws to return to periscope depth. filling tanks to negative to go deeper yes. with motors to go faster. like when the say Blow negative. choices are negative positive and neutral. GWX has a minor positive bouancy pulling you up slowly to about two metres above ordered depth MM __________________ RIP Mush Tutorial

02-08-07, 07:05 AM	#4
Brag Navy Seal Join Date: Nov 2006 Location: Docked on a Russian pond Posts: 7,072 Downloads: 2 Uploads: 0	With your boyancy near neutral, you control depth mainly with diving planes. To surface, you blow your ballast tanks and use compressed air for that to gain positive bouyancy. For emergency surface, you blow more ballast. __________________ Espionage, adventure, suspense, are just a click away Click here to look inside Brag's book: Amazon.com: Kingmaker: Alexey Braguine: Books Order Kingmaker here: http://www.subsim.com/store.html For Tactics visit:http://www.freewebs.com/kielman/

02-08-07, 11:59 AM	#7
bigboywooly Rear Admiral Join Date: Apr 2006 Location: Swindon, England Posts: 10,151 Downloads: 35 Uploads: 0	:rotfl: Nice sig there Steve __________________ My mediafire page http://www.mediafire.com/?11eoq19bq9r41

02-08-07, 12:04 PM	#8
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	Believe it or not, I first saw it on a T-shirt. __________________ “Never do anything you can't take back.” —Rocky Russo

02-07-07, 07:48 PM	#3
Ducimus Rear Admiral Join Date: May 2005 Posts: 12,987 Downloads: 67 Uploads: 2	http://science.howstuffworks.com/submarine1.htm

02-08-07, 08:26 AM	#5
RawRecruit Sailor man Join Date: Dec 2006 Posts: 50 Downloads: 0 Uploads: 0	You should try a bit of scuba diving...that way you get to experience the concepts first hand!

02-08-07, 05:47 PM	#11
Sailor Steve Eternal Patrol Join Date: Nov 2002 Location: High in the mountains of Utah Posts: 50,369 Downloads: 745 Uploads: 249	No, by all means check sources. My sub experience is all from books, movies and games. I'm just going from what I've read. Challenge everything. I've been wrong many times. __________________ “Never do anything you can't take back.” —Rocky Russo