Detectable noises(other than NB/BB/active) and Violation of ROE

[suBB]

Two things:

1. We can go as far as the imagination and realms of practicality allow us to go on this one, but what are some reasonable ideas of detectable noises besides listening for a BB/NB contacts and active returns?

With the right conditions most of this can be done easily with doctrine and I can have acoustics actually report the noise source to the skipper(you) for brief moments of time as well as in error due to path loss with respect to object distance. Some ideas that come to mind are the following:

Aged control planes: Haven’t been serviced and treated in a while

Hull popping: certainly not in shallow waters – well I guess it depends on how shallow is shallow

Reactor noise transients: seems practical and I wonder how that would sound to the ear? High-pitched tone maybe?

On board accidents: Resulting in loud brief noises - something falling over and crashing on floor

Mechanical failure: Failures of machinery making noises until secured and repaired/replaced

Use of mechanical devices: such as towed arrays and floating wires

Radiated aircraft noise: as the typhoon detected the asw MP before attack in HFRO

Break waves crashing against the hull of surface craft: FFG in a high sea state


2. In a real life situation how would violation of ROE be handled between two opposing forces?