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olddriedseaweed · 04-08-17, 02:50 PM

Active sonar is directional. you need to be discovered passively and then the sonar operator pings your bearing to determine your depth to set the charges. As I understand it, active sonar limits the host warship to 15 knots, as above that speed the noise of the ship itself will drown out the return (wiser minds, please correct me if I am wrong) Also, there are blind spots in the active sonar array - 150 - 240 relative ????? Aft anyway, so after a run, the ship will lose you, regardless - hence the advantage of Hedgehogs.
While pinging away randomly may have some psychological advantages, it defeats the purpose.

04-08-17, 02:50 PM	#2
olddriedseaweed Mate Join Date: Oct 2011 Location: Houston Posts: 60 Downloads: 259 Uploads: 0	Pingmepingyou Active sonar is directional. you need to be discovered passively and then the sonar operator pings your bearing to determine your depth to set the charges. As I understand it, active sonar limits the host warship to 15 knots, as above that speed the noise of the ship itself will drown out the return (wiser minds, please correct me if I am wrong) Also, there are blind spots in the active sonar array - 150 - 240 relative ????? Aft anyway, so after a run, the ship will lose you, regardless - hence the advantage of Hedgehogs. While pinging away randomly may have some psychological advantages, it defeats the purpose.