[Lionsion]

I think the opponent Russian sub was an Alfa, though. That's the one that's sunk at the end of the movie.

[jabl]

Yes, that's correct. (And the US subs are 688 class.)

[zentiggr]

Fun fact - as I was reading Red October, I got a job as an electronics apprentice/tech at the yard in Portsmouth NH, and the first boat I stepped onto was the Dallas. Was a cool moment.

[rpeden]

In the book, USS Ethan Allen (an SSBN) made an appearance as well.