Can't evade this destroyer!

Naga · 05-09-09, 10:15 PM

Pertinent info
-------------
Date- May, 1940
Sub- Type XIIB
Location- South of Spain, West of the Straits of Gibraltar.

I was pursuing a couple of unguarded surface ships headed East towards the Straits of Gibraltar when all of a sudden I hear something whiz past my periscope. I turn the periscope, and I see that my dumb sonar man had let a destroyer get to within about 800m of my sub without noticing. Needless to say, I ordered a crash dive and made an emergency turn to avoid the depth charges he drops. I went down to 100m and dropped speed to 1kt. I checked my map and saw that this destroyer was the lead escort of a convoy I was heading directly toward, but for whatever reason, this destroyer was WAY ahead of all the other ships in the convoy.

Usually, at this point, I can just dodge the depth charges he drops and wait it out until he gives up. However, because I had been pursuing some surface ships for a good long while before it attacked, I am now low on battery and have a high CO2 level.

The first thing I tried was pointing my sub directly at/away from the destroyer while it pinged me. I had never done this before, but have read about it on this forum. On all my attempts, I was within 15 degrees of being pointed directly toward/away from the destroyer. However, it still somehow saw me. I kept trying this, and I was unable to shake the destroyer via this method. However, I think I ran it out of depth charges, as it no longer drops them.

The next thing I tried was to head directly away from the convoy. I did this, and I am now out of hydrophone range of it. However, this destroyer just won't give up. It keeps pinging me and driving right over me, but it isn't dropping any more depth charges!

My sub currently has minor damage from machine gun fire from when I went to periscope depth to see what was going on. My flak cannon and deck gun have minor damage, but that is it. Can someone give me any ideas?

ekkerr · 05-09-09, 10:44 PM

if he is out of dcs then go after him you mite get a shot at him after he passes over you be more agres-------ive get him

mookiemookie · 05-09-09, 11:08 PM

Go deeper! At least 140 meters.

Naga · 05-09-09, 11:12 PM

Well, I didn't want to try that, but I did, and it worked. Fired off a salvo of four torpedoes when it was turning, two hit, and now he's dead in the water. I wasted about two hours on that realtime, but no I know what to do later! Thanks!

Also, could anyone give me any tips on evasion? I thought I had escaped him before I tried attacking, but it seems my sonar man was saying "moving away" when he meant "closing." He kept saying "moving away," then all of a sudden he starts calling off bearings from the opposite direction and I hear the destroyer whiz over my head.

Either way, thanks.

its a viic · 05-09-09, 11:12 PM

you can try going deeper, but if a convoy is heading your way you may want to take the fight to him since you are low on batteries and air. Be aggressive since hes out of depth charges

mookiemookie · 05-09-09, 11:25 PM

He might have come around from behind you. Your sonarman is deaf directly behind you as your own engines cover up any noise you would hear.

Bronzewing · 05-10-09, 01:52 AM

Sorry, how did you get a type XII U boat? I thought they were never actually built. I wish they were, having a boat with 6 bow tubes, 2 stern tubes and a 105mm deck gun sounds fun.

bookworm_020 · 05-10-09, 02:04 AM

Go to silent running, go deep and try to creep away. It seems to work for me. When they become available, get some decoys, as they can help you get away from a pesky escort or two

Paul Riley · 05-10-09, 04:52 AM

I make it standard to go down to 200m in emergency situations,run at slow,and if pinged drop speed further until you appear to have hit the 'sweet spot',you will know this as ASDIC pulses get weaker and also the propellors above will not sound as strong/nearby,also make sure you try and keep your stern facing the pursuer,the ASDIC is less effective bow/stern on,other than when on your broadside which is a larger surface for the ASDIC to hit.Having said all that being at 200m would surely give allied listening gear a hard time anyway.

Note: make sure your UBoat can make the extreme dive before hand by doing a dive test if you have sustained damage at all,you don't want to get close to 200m and realise the UBoat can only sustain 150m,for whatever reason.

Jimbuna · 05-10-09, 06:49 AM

You also want to practice your marksmanship....4 eels at an escort

BE MORE AGGRESSIVE!!

kdv · 05-10-09, 08:17 AM

Try looking for the 1000rpm problem.

I had the same issue over and over - silent running at engine setting '1' never worked, they still 'saw' me.

A change somewhere in a .cfg file modified the engine rpm's so they really would be under 1000rpm in silent running did the trick.

Sorry I can't be more specific - I'm only throwing this out there because some of the smarter people here may know what I'm on about.

finchOU · 05-10-09, 12:57 PM

Off topic:

With the XXI Boats Does staying below 100 rpms per engine matter ..or do you stay below 3 or 2 knots? I havent tried one of those in a while ...but it seemed I still needed to say below a certain speed (knots) to no be redected...vis an RPM....any word on this??

05-09-09, 10:15 PM	#1
Naga Watch Join Date: Apr 2009 Posts: 26 Downloads: 0 Uploads: 0	Can't evade this destroyer! Pertinent info ------------- Date- May, 1940 Sub- Type XIIB Location- South of Spain, West of the Straits of Gibraltar. I was pursuing a couple of unguarded surface ships headed East towards the Straits of Gibraltar when all of a sudden I hear something whiz past my periscope. I turn the periscope, and I see that my dumb sonar man had let a destroyer get to within about 800m of my sub without noticing. Needless to say, I ordered a crash dive and made an emergency turn to avoid the depth charges he drops. I went down to 100m and dropped speed to 1kt. I checked my map and saw that this destroyer was the lead escort of a convoy I was heading directly toward, but for whatever reason, this destroyer was WAY ahead of all the other ships in the convoy. Usually, at this point, I can just dodge the depth charges he drops and wait it out until he gives up. However, because I had been pursuing some surface ships for a good long while before it attacked, I am now low on battery and have a high CO2 level. The first thing I tried was pointing my sub directly at/away from the destroyer while it pinged me. I had never done this before, but have read about it on this forum. On all my attempts, I was within 15 degrees of being pointed directly toward/away from the destroyer. However, it still somehow saw me. I kept trying this, and I was unable to shake the destroyer via this method. However, I think I ran it out of depth charges, as it no longer drops them. The next thing I tried was to head directly away from the convoy. I did this, and I am now out of hydrophone range of it. However, this destroyer just won't give up. It keeps pinging me and driving right over me, but it isn't dropping any more depth charges! My sub currently has minor damage from machine gun fire from when I went to periscope depth to see what was going on. My flak cannon and deck gun have minor damage, but that is it. Can someone give me any ideas?

05-09-09, 11:08 PM	#3
mookiemookie Navy Seal Join Date: Nov 2005 Location: Houston, TX Posts: 9,404 Downloads: 105 Uploads: 1	Go deeper! At least 140 meters. __________________ They don’t think it be like it is, but it do. Want more U-boat Kaleun portraits for your SH3 Commander Profiles? Download the SH3 Commander Portrait Pack here.

05-09-09, 11:25 PM	#6
mookiemookie Navy Seal Join Date: Nov 2005 Location: Houston, TX Posts: 9,404 Downloads: 105 Uploads: 1	He might have come around from behind you. Your sonarman is deaf directly behind you as your own engines cover up any noise you would hear. __________________ They don’t think it be like it is, but it do. Want more U-boat Kaleun portraits for your SH3 Commander Profiles? Download the SH3 Commander Portrait Pack here.

05-10-09, 01:52 AM	#7
Bronzewing Helmsman Join Date: Jul 2008 Location: Leicester Posts: 104 Downloads: 18 Uploads: 0	Sorry, how did you get a type XII U boat? I thought they were never actually built. I wish they were, having a boat with 6 bow tubes, 2 stern tubes and a 105mm deck gun sounds fun. __________________ "I say Number one, my end is diving. What the hell is your end doing?"

05-10-09, 02:04 AM	#8
bookworm_020 Navy Seal Join Date: Aug 2005 Location: Sinking ships off the Australian coast Posts: 5,966 Downloads: 1 Uploads: 0	Go to silent running, go deep and try to creep away. It seems to work for me. When they become available, get some decoys, as they can help you get away from a pesky escort or two __________________ "There is always one person in any organization who knows whats going on, That person must be fired"

05-09-09, 10:44 PM	#2
ekkerr Watch Join Date: May 2007 Location: bc.canada Posts: 25 Downloads: 481 Uploads: 0	if he is out of dcs then go after him you mite get a shot at him after he passes over you be more agres-------ive get him

05-09-09, 11:12 PM	#4
Naga Watch Join Date: Apr 2009 Posts: 26 Downloads: 0 Uploads: 0	Well, I didn't want to try that, but I did, and it worked. Fired off a salvo of four torpedoes when it was turning, two hit, and now he's dead in the water. I wasted about two hours on that realtime, but no I know what to do later! Thanks! Also, could anyone give me any tips on evasion? I thought I had escaped him before I tried attacking, but it seems my sonar man was saying "moving away" when he meant "closing." He kept saying "moving away," then all of a sudden he starts calling off bearings from the opposite direction and I hear the destroyer whiz over my head. Either way, thanks.

05-09-09, 11:12 PM	#5
its a viic Gunner Join Date: Feb 2006 Posts: 97 Downloads: 1 Uploads: 0	you can try going deeper, but if a convoy is heading your way you may want to take the fight to him since you are low on batteries and air. Be aggressive since hes out of depth charges

05-10-09, 04:52 AM	#9
Paul Riley Ocean Warrior Join Date: Aug 2008 Location: Sheffield, England Posts: 2,679 Downloads: 165 Uploads: 0	I make it standard to go down to 200m in emergency situations,run at slow,and if pinged drop speed further until you appear to have hit the 'sweet spot',you will know this as ASDIC pulses get weaker and also the propellors above will not sound as strong/nearby,also make sure you try and keep your stern facing the pursuer,the ASDIC is less effective bow/stern on,other than when on your broadside which is a larger surface for the ASDIC to hit.Having said all that being at 200m would surely give allied listening gear a hard time anyway. Note: make sure your UBoat can make the extreme dive before hand by doing a dive test if you have sustained damage at all,you don't want to get close to 200m and realise the UBoat can only sustain 150m,for whatever reason. __________________ Best Patrol: 10 merchants + HMS Nelson for 68.056 Tonnes Last edited by Paul Riley; 05-10-09 at 09:13 AM.

05-10-09, 06:49 AM	#10
Jimbuna Chief of the Boat Join Date: Feb 2006 Location: 250 metres below the surface Posts: 190,500 Downloads: 63 Uploads: 13	You also want to practice your marksmanship....4 eels at an escort BE MORE AGGRESSIVE!! __________________ Wise men speak because they have something to say; Fools because they have to say something. Oh my God, not again!!

05-10-09, 08:17 AM	#11
kdv Loader Join Date: Jan 2009 Posts: 85 Downloads: 37 Uploads: 0	Try looking for the 1000rpm problem. I had the same issue over and over - silent running at engine setting '1' never worked, they still 'saw' me. A change somewhere in a .cfg file modified the engine rpm's so they really would be under 1000rpm in silent running did the trick. Sorry I can't be more specific - I'm only throwing this out there because some of the smarter people here may know what I'm on about.

05-10-09, 12:57 PM	#12
finchOU Samurai Navy Join Date: Jan 2004 Posts: 571 Downloads: 77 Uploads: 0	Off topic: With the XXI Boats Does staying below 100 rpms per engine matter ..or do you stay below 3 or 2 knots? I havent tried one of those in a while ...but it seemed I still needed to say below a certain speed (knots) to no be redected...vis an RPM....any word on this??