Question: FFG Active sonar - single narrow beam detectable?

Wildcat · 01-01-06, 03:26 AM

I am curious about this.

Let's say I have a passive transient contact i.e. torpedo fired, or brief cavitation.

I turn towards the resolved contact and then make a single ping using the NARROW active sonar beam, which only sends a ping down those approximately 20-30degrees.

If any submarines are behind me when I do this, are they going to detect it? Are submarines outside of the beam able to detect the active sonar ping?

It would be nice to get a firm solution on a possub without advertising to everyone else that you're there.

01-01-06, 03:26 AM	#1
Wildcat Engineer Join Date: Jan 2002 Posts: 215 Downloads: 69 Uploads: 0	Question: FFG Active sonar - single narrow beam detectable? I am curious about this. Let's say I have a passive transient contact i.e. torpedo fired, or brief cavitation. I turn towards the resolved contact and then make a single ping using the NARROW active sonar beam, which only sends a ping down those approximately 20-30degrees. If any submarines are behind me when I do this, are they going to detect it? Are submarines outside of the beam able to detect the active sonar ping? It would be nice to get a firm solution on a possub without advertising to everyone else that you're there.