When it hit the streets in 1984, the "Hunt for Red October" marked the invention of the military techno-thriller genre.
The conclusion featured an underwater game of cat and mouse between the Red October (a modified Typhoon-class submarine manned by a skeleton crew), the Los Angeles-class submarine USS Dallas (SSN 700), and the Sturgeon-class submarine USS Pogy (SSN 647) on one side against the Alfa-class submarine V.K. Konavolov.
As any fan of Tom Clancy novels knows, the Red October made it, and the Konavolov ended up on the bottom. But what would happen today?
Let's start by updating the ships in question. Let's replace the Typhoon with Russia's new Borei-class SSBN. In one sense, we still get a very quiet, hard-to-detect vessel. While much smaller than the Red October (24,000 tons to 48,000), the Borei features pumpjet propulsion. This system has been used on British and American submarines for decades.
But the American submarines also will improve. Instead of a Flight I 688 like USS Dallas (now destined for the "Nuclear Ship-Submarine Recycling Program" – a fancy way of saying scrapyard), we'll use a Virginia-class SSN (let's go with USS Illinois (SSN 786) for the sake of discussion. We'll replace the Pogy (already "recycled") with USS Connecticut (SSN 22), a Seawolf-class submarine.
Now, what do we replace the Alfa with? Back in 1984, the Alfa was a mystery. It was known to have high speed and a titanium hull. Today, we know two things about this alleged super-submarine.
First, the Alfa was louder than a teenager's stereo system playing Metallica. Second, its sonars, like those on most Russian combat vessels, were crap. The successor to the Alfa was the Sierra-class submarine. While not as fast, it did feature a better armament suite (four 650mm torpedo tubes and four 533mm torpedo tubes compared to six 533mm tubes for the Alfa). It also was somewhat quieter (given the Alfa's noise level, that's easy to do).
How might that final confrontation go? Given what we know about the (lack of) performance Russian sonars were capable of, it is highly likely that the 2016 version of the Hunt for Red October would be far less, shall we say, novel-worthy. It's highly probable that the Sierra would not even pick up the Borei-class Red October and her escorts. Perhaps, at most, USS Connecticut would fire a decoy or two – sending the Sierra on a wild goose chase.
Thus, the Soviets would never even know America had the Red October.