The PING is supersonic. So why do we hear it?

Quagmire · 06-14-06, 10:58 AM

I cant get enough of the Fleet Type Submairne manual at this website: http://www.maritime.org/fleetsub/ I have read to the Sonar operators section now and the more I read the more I cannot wait for SHIV! Those uboots are in the stone age compared to the average USN fleet boat!

Anyway the manual describes echo ranging or "pinging" as supersonic meaning that the ping cannot be heard without receiving gear. So why do we hear it when we are crapping our pants in the control room?

Also the manual states that escort vessels ping constantly due to the noise they make at high speeds? This doesnt seem to happen in SHIII. They only seem to ping when they detect you.

Or am I missing something???

Here are the links that I am referring to:

Supersonic listening: http://www.maritime.org/fleetsub/sonar/chap5.htm#5A

Single Ping Echo Ranging: http://www.maritime.org/fleetsub/sonar/chap6.htm#6A

06-14-06, 10:58 AM	#1
Quagmire Watch Officer Join Date: May 2005 Posts: 335 Downloads: 52 Uploads: 0	The PING is supersonic. So why do we hear it? I cant get enough of the Fleet Type Submairne manual at this website: http://www.maritime.org/fleetsub/ I have read to the Sonar operators section now and the more I read the more I cannot wait for SHIV! Those uboots are in the stone age compared to the average USN fleet boat! Anyway the manual describes echo ranging or "pinging" as supersonic meaning that the ping cannot be heard without receiving gear. So why do we hear it when we are crapping our pants in the control room? Also the manual states that escort vessels ping constantly due to the noise they make at high speeds? This doesnt seem to happen in SHIII. They only seem to ping when they detect you. Or am I missing something??? Here are the links that I am referring to: Supersonic listening: http://www.maritime.org/fleetsub/sonar/chap5.htm#5A Single Ping Echo Ranging: http://www.maritime.org/fleetsub/sonar/chap6.htm#6A