Question about silent running and engine noise

Canovaro · 03-15-07, 07:00 AM

Is there any documentation or knowledge available about how much noise the engine makes at let's say onethird power compared to let's say full power at silent running?

In other words:
How much difference does silent running rig make?
I hope my question is clear

Linavitch · 03-15-07, 07:16 AM

IIRC you need to be at less than 2knotts to be in silent running.

Silent running is a state where the engine is turned down to 2, no reloading or repairing etc. What I mean is that the engine is not technically in silent mode but going at slow speed makes it quieter.

Canovaro · 03-15-07, 07:20 AM

Quote:

Originally Posted by Linavitch

IIRC you need to be at less than 2knotts to be in silent running.

Silent running is a state where the engine is turned down to 2, no reloading or repairing etc. What I mean is that the engine is not technically in silent mode but going at slow speed makes it quieter.

Thanks for your answer.
So "silent running" is not a technical engine / equipment thing, but only means slow movement and no/little noises being made in the boat?

_Seth_ · 03-15-07, 07:32 AM

Welcome to Subsim, mate!

AVGWarhawk · 03-15-07, 07:37 AM

Quote:

Originally Posted by Canovaro

Quote:

Originally Posted by Linavitch

IIRC you need to be at less than 2knotts to be in silent running.

Silent running is a state where the engine is turned down to 2, no reloading or repairing etc. What I mean is that the engine is not technically in silent mode but going at slow speed makes it quieter.

Thanks for your answer.
So "silent running" is not a technical engine / equipment thing, but only means slow movement and no/little noises being made in the boat?

Correct. Electric engines on 2kts and crew very quiet. No torpedo loading or repairs to be made.

Welcome aboard Swab.

Linavitch · 03-15-07, 07:38 AM

Oh yeah. Welcome aboard shipmate

Mooncatt · 03-15-07, 07:43 AM

oright m8 and welcome

Morts · 03-15-07, 10:05 AM

welcome to subsim

Brag · 03-15-07, 12:30 PM

Welcome aboard.
You'll be quietest at one knot--that's what I use to get away from escorts.

Ducimus · 03-15-07, 03:32 PM

Running at below 2 kts isnt really silent running.

Silent running does two things. Stops all work on the sub, and seems to behave as a boolean value to the AI. Your either flagged as sielnt running or your not.

Acutal AI hydropone deteciton is based primarly on how many RPM's your doing, and then checks to see if your in silent running or not.

Canovaro · 03-15-07, 05:14 PM

Thank you all for helping out and for those warm welcomes

High Voltage · 03-15-07, 11:12 PM

remember also that at one knot you will find it very difficult, if not impossible to creep deeper, as you will be fighting your tendancy to be neutrally buoyant...
This only applies to GWX

OuNiS · 03-15-07, 11:25 PM

Quote:

Originally Posted by High Voltage

remember also that at one knot you will find it very difficult, if not impossible to creep deeper, as you will be fighting your tendancy to be neutrally buoyant...
This only applies to GWX

But if you play NYGM you must be very careful because at the speed 1 knot your boat slowly goes deeper, deeper, deeper.....

Heibges · 03-16-07, 03:19 PM

Quote:

Originally Posted by OuNiS

Quote:

Originally Posted by High Voltage

remember also that at one knot you will find it very difficult, if not impossible to creep deeper, as you will be fighting your tendancy to be neutrally buoyant...
This only applies to GWX

But if you play NYGM you must be very careful because at the speed 1 knot your boat slowly goes deeper, deeper, deeper.....

You can avoid the boat going deeped and deeper in Stock and NYGM by levelling out your dive before going to Silent Running. If I dive to avoid destroyers, I level off at my set depth (usually about 175m) before I order silent running.

Corsair · 03-16-07, 03:31 PM

Quote:

Originally Posted by OuNiS

Quote:

Originally Posted by High Voltage

remember also that at one knot you will find it very difficult, if not impossible to creep deeper, as you will be fighting your tendancy to be neutrally buoyant...
This only applies to GWX

But if you play NYGM you must be very careful because at the speed 1 knot your boat slowly goes deeper, deeper, deeper.....

Yes but very slowly... and if you make a little speed dash during DC, you get back up in no time. At 1 knt you are under the 100 rpms.

03-15-07, 07:00 AM	#1
Canovaro Ace of the Deep Join Date: Mar 2007 Location: Netherlands Posts: 1,062 Downloads: 34 Uploads: 0	Question about silent running and engine noise Is there any documentation or knowledge available about how much noise the engine makes at let's say onethird power compared to let's say full power at silent running? In other words: How much difference does silent running rig make? I hope my question is clear

03-15-07, 07:32 AM	#4
_Seth_ Ocean Warrior Join Date: Dec 2005 Location: In Tromsoe, @Tirpitz' final resting place.. Posts: 3,277 Downloads: 94 Uploads: 0	Welcome to Subsim, mate! __________________

03-15-07, 07:43 AM	#7
Mooncatt Grey Wolf Join Date: Jun 2006 Location: Keighley UK Posts: 938 Downloads: 78 Uploads: 0	oright m8 and welcome __________________

03-15-07, 12:30 PM	#9
Brag Navy Seal Join Date: Nov 2006 Location: Docked on a Russian pond Posts: 7,072 Downloads: 2 Uploads: 0	Welcome aboard. You'll be quietest at one knot--that's what I use to get away from escorts. __________________ 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/

03-15-07, 11:12 PM	#12
High Voltage Chief Join Date: Jan 2007 Location: U-33. Depth Charges...sinking.. Posts: 325 Downloads: 0 Uploads: 0	remember also that at one knot you will find it very difficult, if not impossible to creep deeper, as you will be fighting your tendancy to be neutrally buoyant... This only applies to GWX __________________ The new-moon night is black as ink. Off Hatteras the tankers sink. While sadly Roosevelt counts the score-- Some fifty thousand tons--by MOHR

03-15-07, 07:16 AM	#2
Linavitch Officer Join Date: Jul 2006 Location: Hull Posts: 239 Downloads: 170 Uploads: 0	IIRC you need to be at less than 2knotts to be in silent running. Silent running is a state where the engine is turned down to 2, no reloading or repairing etc. What I mean is that the engine is not technically in silent mode but going at slow speed makes it quieter.

03-15-07, 07:38 AM	#6
Linavitch Officer Join Date: Jul 2006 Location: Hull Posts: 239 Downloads: 170 Uploads: 0	Oh yeah. Welcome aboard shipmate

03-15-07, 10:05 AM	#8
Morts Admiral Join Date: Sep 2006 Location: Denmark Posts: 2,395 Downloads: 23 Uploads: 0	welcome to subsim

03-15-07, 03:32 PM	#10
Ducimus Rear Admiral Join Date: May 2005 Posts: 12,987 Downloads: 67 Uploads: 2	Running at below 2 kts isnt really silent running. Silent running does two things. Stops all work on the sub, and seems to behave as a boolean value to the AI. Your either flagged as sielnt running or your not. Acutal AI hydropone deteciton is based primarly on how many RPM's your doing, and then checks to see if your in silent running or not.

03-15-07, 05:14 PM	#11
Canovaro Ace of the Deep Join Date: Mar 2007 Location: Netherlands Posts: 1,062 Downloads: 34 Uploads: 0	Thank you all for helping out and for those warm welcomes