Destroyer hydrophones

ralphnader23 · 06-30-10, 11:54 AM

I play on GWX. Usually my situation is one where I've set an intercept course on a convoy, but when I get there, and hear/plot their course from the sonar, I discover that I'm a few km off. I need to get in position quickly (before the convoy passes me) and silently (so I don't get noticed) and often times I end up having to make a choice between making very long shots (3-4k m) or ending up at a bad angle behind the convoy, or trying to get my targeting solution in 30 seconds b/c they are already at 345 degrees or going faster and possibly being noticed (if the destroyers have passive sonar). I guess I'll just have to do a little trial and error and see if they can hear me if I'm chugging those last couple km at 5-6 knots.

Will the destroyers be using their passive while they are cruising along escorting? Or do they just use it when they are actively hunting for me and not using active?

sergei · 06-30-10, 12:24 PM

They're always listening.

Svendog · 06-30-10, 02:22 PM

If you click on the destroyer's icon on the nav map, you will see some rings drawn around it. The one with a triangle piece missing at the stern of the ship is her hydrophone coverage. If you are in the missing area astern of the ship, you are in her baffles. In other words, she can't hear you over the noise from her own engines. The smaller half circle at the bow of the ship is her Asdic, or active sonar, coverage. You don't want to be in that area.

Sven

Jimbuna · 06-30-10, 02:38 PM

Quote:

Originally Posted by sergei

They're always listening.

Rgr that...and they become more proficient when the crew reaches veteran then elite status.

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06-30-10, 11:54 AM	#1
ralphnader23 Bosun Join Date: May 2010 Location: Periscope Depth Posts: 66 Downloads: 2 Uploads: 0	I play on GWX. Usually my situation is one where I've set an intercept course on a convoy, but when I get there, and hear/plot their course from the sonar, I discover that I'm a few km off. I need to get in position quickly (before the convoy passes me) and silently (so I don't get noticed) and often times I end up having to make a choice between making very long shots (3-4k m) or ending up at a bad angle behind the convoy, or trying to get my targeting solution in 30 seconds b/c they are already at 345 degrees or going faster and possibly being noticed (if the destroyers have passive sonar). I guess I'll just have to do a little trial and error and see if they can hear me if I'm chugging those last couple km at 5-6 knots. Will the destroyers be using their passive while they are cruising along escorting? Or do they just use it when they are actively hunting for me and not using active?

06-30-10, 12:24 PM	#2
sergei Sea Lord Join Date: May 2008 Location: London UK Posts: 1,788 Downloads: 405 Uploads: 29	They're always listening.

06-30-10, 02:22 PM	#3
Svendog Seaman Join Date: Jun 2010 Location: Wolverhampton, U.K. IO82wo. Posts: 42 Downloads: 168 Uploads: 0	If you click on the destroyer's icon on the nav map, you will see some rings drawn around it. The one with a triangle piece missing at the stern of the ship is her hydrophone coverage. If you are in the missing area astern of the ship, you are in her baffles. In other words, she can't hear you over the noise from her own engines. The smaller half circle at the bow of the ship is her Asdic, or active sonar, coverage. You don't want to be in that area. Sven