Photo Recon Mission

sladecutter3 · 12-26-08, 08:44 AM

had a similar problem wtih Rabaul photo mission. 1:30am, heavy seas, thunderstorm, rigged for silent running, 2 knots, 100ft below thermal layer.
destroyers not actively pinging, but was dectected from 5075 yards out from my port quarter, he ran in and dropped depth charges right across where i would have been had i not taken evasive action, did a few 90's at flank speed, and hauled a--,
tried several times using several approches, couldn't get in, so i gave up and went home. didnt really matter in the end as that was the seventh mission on that particular patrol, got to Pearl, got a new boat, got new patrol orders and im off again, this time an agent insertion on the Chinese mainland. also have you ever noticed on a photo mission in shallow water the seagulls always know where you are?:rotfl:

Aramike · 12-26-08, 10:33 AM

I had a similar situation where I was rigged for silent running but my DC team was activated making loads of noise. You may want to make sure that you've got literally nothing going on if you're trying to remain undetected.

NEON DEON · 12-26-08, 11:38 AM

I wonder if it makes a differance the depth under the layer? Say periscope depth is 16 meters stated depth. Then should you not get the whole boat under the layer say 20 meters under the layer? I am playing a new campaign this week and have a patrol like that comming up. I will see what happens then.

zinosumatra · 01-03-09, 03:05 AM

You want to be assured to get the noisy parts of the boat (the hull) beneath the sonic layer, yet close enough to the layer to gain maximum benefit from refraction. Pull the conning tower plus 5 meters beneath that depth and you should be solid.

01-03-09, 03:20 AM

remember sonar looking down sees more in deep water than shallow water and that by being deep and going slow can and sometimes does guarranty they pass over you at some point so you can actually make yourself easier to detect by going 1 or 2 kts and taking forever and a day to get out of the path of that DD patrol area. i prefer moving in at periscope depth, ahead slow, silent running at 2 kts and wait for an opening to scoot in behind them ahead std when the DD turns away from me. works almost every time but if i am detected i am ready to put a fish in him.

12-26-08, 11:38 AM	#3
NEON DEON Ace of the Deep Join Date: Apr 2005 Location: Los Angeles, CA Posts: 1,207 Downloads: 39 Uploads: 5	I wonder if it makes a differance the depth under the layer? Say periscope depth is 16 meters stated depth. Then should you not get the whole boat under the layer say 20 meters under the layer? I am playing a new campaign this week and have a patrol like that comming up. I will see what happens then. __________________ Diesel Boats Forever!

01-03-09, 03:20 AM	#5
Webster Stowaway Posts: n/a Downloads: Uploads:	remember sonar looking down sees more in deep water than shallow water and that by being deep and going slow can and sometimes does guarranty they pass over you at some point so you can actually make yourself easier to detect by going 1 or 2 kts and taking forever and a day to get out of the path of that DD patrol area. i prefer moving in at periscope depth, ahead slow, silent running at 2 kts and wait for an opening to scoot in behind them ahead std when the DD turns away from me. works almost every time but if i am detected i am ready to put a fish in him. Last edited by Webster; 01-03-09 at 03:22 AM.

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12-26-08, 08:44 AM	#1
sladecutter3 Swabbie Join Date: Dec 2008 Location: 3514N8050W Posts: 13 Downloads: 64 Uploads: 0	had a similar problem wtih Rabaul photo mission. 1:30am, heavy seas, thunderstorm, rigged for silent running, 2 knots, 100ft below thermal layer. destroyers not actively pinging, but was dectected from 5075 yards out from my port quarter, he ran in and dropped depth charges right across where i would have been had i not taken evasive action, did a few 90's at flank speed, and hauled a--, tried several times using several approches, couldn't get in, so i gave up and went home. didnt really matter in the end as that was the seventh mission on that particular patrol, got to Pearl, got a new boat, got new patrol orders and im off again, this time an agent insertion on the Chinese mainland. also have you ever noticed on a photo mission in shallow water the seagulls always know where you are?:rotfl:

12-26-08, 10:33 AM	#2
Aramike Ocean Warrior Best of SUBSIM Chairman Join Date: Dec 2008 Location: Milwaukee, WI Posts: 3,207 Downloads: 59 Uploads: 0	I had a similar situation where I was rigged for silent running but my DC team was activated making loads of noise. You may want to make sure that you've got literally nothing going on if you're trying to remain undetected.

01-03-09, 03:05 AM	#4
zinosumatra Watch Join Date: May 2008 Location: Indy, IN Posts: 27 Downloads: 14 Uploads: 0	You want to be assured to get the noisy parts of the boat (the hull) beneath the sonic layer, yet close enough to the layer to gain maximum benefit from refraction. Pull the conning tower plus 5 meters beneath that depth and you should be solid.