USN (nuclear armed) carrier battle force headed for NORKs.

[Jackalope]

I bet their contract with Microsoft includes an upgrade path that's financially attractive.

For Micro$oft. Remember, the only government body worse than the UK's for shovelling money at companies selling shitty goods and services is the US military.

It's far more cost effective for Microsoft to have them on a modern OS. The Navy will still have to pay support costs, and MS doesn't have to pay software people to maintain software that's past end-of-life.

[Anomalocaris]

It depends on the platform, but it's safe to say that the systems are about 10 years behind the curve.

We wouldn't use active sonar as the primary detection strategy for a DE sub. MAD (magnetic anomaly detector) buoy arrays are fantastically effective from P-3/P-8 platforms in the sky.

Those are all short range detection methods that require the sub to be localized first, somehow.

Around 2006, a chinese diesel electric sub caused a panic at the Pentagon when it penetrated the innermost ASW ring around USS Kitty Hawk during an USN exercise off japan, and demonstrated it had been able to do so by surfacing next to the carrier. While a diesel sub in the right place at the right time is probably silent enough to have a good chance of penetrating the anti-submarine defenses of any relatively slow moving or stationary high value target, the question remains how did the Chinese get their diesel sub into the right place to pull this off?

However, in general, diesel submarines don't have the speed and endurance to stalk surface battle groups. They are primarily ambush weapons used to chock off maritime bottlenecks that surface battle groups have to pass. The 2010 incident where a NK SSK sunk a South Korean corvette was such a coastal water ambush attack.

So if the Vinson group remains at high seas and maneuver at substantial speed, it should be relatively safe from North Korean SSKs.

[Gawdzilla Sama]

Just saw on the news here, Trump speaking. He is sending an awesome fleet, it has submarines more powerfull than the carrier, just awesome, you would love it.

Somekind of interview he gave. what a military genius.

You have to accept what he says because it's him what said it. 

[Pat Mustard]

For Micro$oft. Remember, the only government body worse than the UK's for shovelling money at companies selling shitty goods and services is the US military.

It's far more cost effective for Microsoft to have them on a modern OS.  The Navy will still have to pay support costs, and MS doesn't have to pay software people to maintain software that's past end-of-life.

The DoD will pay extra because Micro$oft have to service the OS, on top of the normal service fee. Often times, when the software is bespoke, the IT company will deliver up a pos on purpose, because the added maintenance fees is where the fattest profit is at.