Silent running kill zone

longam · 03-12-10, 09:34 AM

I got spanked by running silent to long again. Went deep and silent to avoid some pest from above and thought I had it under control. I went for a walk while we were evading and all of a sudden boom, were to deep sir! before I could recover I died.

msxyz · 03-12-10, 12:32 PM

When you sub is submerged, you have to keep going to maintain a certain depth. Just like some "primitive" fishes that would go to bottom if they stop swimming (ie sharks).

If I remember correctly, the minimum cruise speed for a submerged Uboot, called schleichfahrt, corresponded to the propellers running at 90 rpm. The boat was then cruising at only 2.5-2.75 kts

Maybe a bug? If your sub is going at 2+ kts it should keep its intended depth.

Or maybe the crew was so depressed (buggy morale system) that they decided to put an end to their misery

Sunfighter · 03-12-10, 01:05 PM

Am i the only one that hast gone under 50 meters yet with their boat? lol. I never had a problem with destroyers once i get past parascope depth, they cant seem to find me past that point.

gimpy117 · 03-12-10, 01:07 PM

ive gone to 120....and you do sink...unless u go 3 knots...

karamazovnew · 03-12-10, 01:55 PM

Shouldn't we sink at any depth if we lie still?
Plus they did have ballast tanks so I guess they could maintain a certain depth by going up/down all the time as long as they had enough compressed air and they didn't care about the noise. In silent running tho it does makes a bit more sense but you should be able to maintain depth at 1 knot

03-12-10, 09:34 AM	#1
longam Admiral Join Date: Jun 2005 Posts: 2,014 Downloads: 26 Uploads: 0	Silent running kill zone I got spanked by running silent to long again. Went deep and silent to avoid some pest from above and thought I had it under control. I went for a walk while we were evading and all of a sudden boom, were to deep sir! before I could recover I died.

03-12-10, 12:32 PM	#2
msxyz Engineer Join Date: Mar 2005 Posts: 218 Downloads: 14 Uploads: 0	When you sub is submerged, you have to keep going to maintain a certain depth. Just like some "primitive" fishes that would go to bottom if they stop swimming (ie sharks). If I remember correctly, the minimum cruise speed for a submerged Uboot, called schleichfahrt, corresponded to the propellers running at 90 rpm. The boat was then cruising at only 2.5-2.75 kts Maybe a bug? If your sub is going at 2+ kts it should keep its intended depth. Or maybe the crew was so depressed (buggy morale system) that they decided to put an end to their misery __________________ ...Sinking deeper into the cold, dark oceans of life

03-12-10, 01:07 PM	#4
gimpy117 Ocean Warrior Join Date: Jul 2007 Location: Kalamazoo, MI Posts: 3,243 Downloads: 108 Uploads: 0	ive gone to 120....and you do sink...unless u go 3 knots... __________________ Member of the Subsim Zombie Army

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03-12-10, 01:05 PM	#3
Sunfighter A-ganger Join Date: Mar 2010 Posts: 78 Downloads: 0 Uploads: 0	Am i the only one that hast gone under 50 meters yet with their boat? lol. I never had a problem with destroyers once i get past parascope depth, they cant seem to find me past that point.

03-12-10, 01:55 PM	#5
karamazovnew The Old Man Join Date: Mar 2009 Location: Bucharest, Romania Posts: 1,403 Downloads: 151 Uploads: 0	Shouldn't we sink at any depth if we lie still? Plus they did have ballast tanks so I guess they could maintain a certain depth by going up/down all the time as long as they had enough compressed air and they didn't care about the noise. In silent running tho it does makes a bit more sense but you should be able to maintain depth at 1 knot