SUBSIM Radio Room Forums - View Single Post - [TRY] If you have a dumb hydrophone operator .

Mouftic · 03-11-11, 06:33 PM

Being a sonar operator for more than 7 years with advance detection courses, it is actually possible to detect contact more than 80 miles away. Has you may not know, sound does not travel in straight lines like a radar. It actually travel in waves, follows currents, bounces off bottom... etc I once tracked an LA class submarine 80 miles away in a convergence zone (CZ). The contact just passes throught the CZ which was about 1 mile long (wide) and then abrupted out. I dont really know what was the capabilities of the passive sonar were at the time, but getting contacts 37km away in straight line seems a bit exagerated, but it would be too complicated I guess to make real models of the water collumn since it changes everywhere around the world and also depends on seasons and more...

None the less, good job on the mod, but I dont think we will ever achieve real life water properties and proper sound propagation.

Also, I dont know why we cant identify the contacts (class of ships) on the passive sonar? Just by listening, i can give you the number of blades, shafts and rpm. This is a pretty good indication of the ships, at least down to a type (destroyer, BS, AC, Tanker....)

03-11-11, 06:33 PM	#4
Mouftic Mate Join Date: Mar 2011 Location: Ottawa, Canada Posts: 59 Downloads: 81 Uploads: 0	Being a sonar operator for more than 7 years with advance detection courses, it is actually possible to detect contact more than 80 miles away. Has you may not know, sound does not travel in straight lines like a radar. It actually travel in waves, follows currents, bounces off bottom... etc I once tracked an LA class submarine 80 miles away in a convergence zone (CZ). The contact just passes throught the CZ which was about 1 mile long (wide) and then abrupted out. I dont really know what was the capabilities of the passive sonar were at the time, but getting contacts 37km away in straight line seems a bit exagerated, but it would be too complicated I guess to make real models of the water collumn since it changes everywhere around the world and also depends on seasons and more... None the less, good job on the mod, but I dont think we will ever achieve real life water properties and proper sound propagation. Also, I dont know why we cant identify the contacts (class of ships) on the passive sonar? Just by listening, i can give you the number of blades, shafts and rpm. This is a pretty good indication of the ships, at least down to a type (destroyer, BS, AC, Tanker....) Last edited by Mouftic; 03-12-11 at 01:09 PM.