[REQ] Hydrophones on surface when stationary - Page 2

NoLine · 08-25-07, 10:25 AM

I think its real hard to have sonar contacts on the surface the allied destroyers didnt hear uboats when they made surface attacks, why not ?

cheers
NoLine

Frederf · 08-25-07, 01:07 PM

The US fleet boat type sonars have the following 2 parts:

1. T-Bar
Location: Mounted on top of the fore deck
Freqency: Low freqency (human hearing)
Range: Long
Sonar Abilities: Listening only

2. Balls
Location: Mounted below the hull at the fore torpedo room
Freqency: High freqency (ultrasonic)
Range: Short
Sonar Abilities: Detecting ultrasonic enemy transmissions, pinging

The 3rd hydrophone sensor is most likely the ST radar which is basically a range finding radar mounted to a periscope to check range on a sighted target. Or it might be somehow related to the ping ability of the sonar in a "virtual sensor" way.

08-25-07, 10:25 AM	#16
NoLine Medic Join Date: Jun 2005 Location: AN85 Posts: 167 Downloads: 55 Uploads: 0	I think its real hard to have sonar contacts on the surface the allied destroyers didnt hear uboats when they made surface attacks, why not ? cheers NoLine

08-25-07, 01:07 PM	#17
Frederf Seasoned Skipper Join Date: Apr 2005 Posts: 665 Downloads: 79 Uploads: 1	The US fleet boat type sonars have the following 2 parts: 1. T-Bar Location: Mounted on top of the fore deck Freqency: Low freqency (human hearing) Range: Long Sonar Abilities: Listening only 2. Balls Location: Mounted below the hull at the fore torpedo room Freqency: High freqency (ultrasonic) Range: Short Sonar Abilities: Detecting ultrasonic enemy transmissions, pinging The 3rd hydrophone sensor is most likely the ST radar which is basically a range finding radar mounted to a periscope to check range on a sighted target. Or it might be somehow related to the ping ability of the sonar in a "virtual sensor" way.