Certainly partly facetious...and admittedly a whole lot "uninformed", but I always shook my internal head when hearing "they're so quiet...we can't find them" when other tools have always been avail. I understand the trade-offs a bit better when it's "sub on sub"...but never really got it from airborne folks. Unless it's the old "well, we don't want them to know that we kinda-sorta even know where to look". Fine, I guess.
No need to respond...I'm paddling back into my own swim lane. You guys know best, and this forum isn't the best place to go "open kimono" on all that I don't know about ASW...
It's tough to explain without getting into stuff we really shouldn't be talking about here. But to boil it down, it's all energy. Sometimes energy put out by a sensor isn't any stronger than the energy being put out by the contact. Sometimes it's not worth the effort to put out that energy from the sensor and instead it's better to let the contact do the work and just listen.
MAC is very unique in the way it pings. It's an SSQ-62/110 on steroids. It has the ability (because of source level, wave/beam forms and signal processing) to do much more than we have been able to do with legacy active and incoherent sources.
No doubt an upgrade, but what about passive systems? In the near future, it's still just -53s with their upgraded alphabet soup that CommodoreMid mentioned, so I was curious if the processing was THAT much better. Again, I understand if that can't be answered.
Airborne. I'm sure there are "wet" assests lurking around.
My first tour, the carrier had S-3s, H-3s and Lamps who's primary focus was on ASW. Plane guard, SSC, ISR, etc. all came second and these squadrons trained for ASW daily. First the S-3s lost their ASW mission and eventually went away and now it seems the helos do ASW as an after thought. I'm way out of date and could be way wrong, but that is what it looks like from the outside.
Edit: Detection versus localization. In my JO days, every BG had at least 2 or 3 small boys with tails in the water continously and S-3s for search/detection. Still had the tail ships during my DH tour but S-3s were becoming Sea Control squadrons and tankers. Localization was S-3s and helos. There were also always a couple friendly SSNs in the neighborhood.
Obviously the Vikings are gone, but a typical loadout for a CSG Romeo det is one shooter and one dipper (or some similar combo). The Romeos that are on the carrier (that replace both the H-3 and the legacy LAMPS assets as well as the S-3) will have a dipper in the air every day. I'm sure folks were better in your day because, like you said, you didn't just practice it, you did it operationally, but as scholbubba said, with a good crew, the Romeo is pretty damn impressive with what it can do on the ASW front, especially if there are two of them.