We believe that these doors, here on the bow and again on the stern, enclose a unique propulsion system, a magneto-hydrodynamic drive, or caterpillar, that would enable the sub to run virtually silent.
13 seconds sound clip from the The Hunt for Red October movie soundboard.
You can hear this line at 00:35:37.916 in the Blu-ray version of the movie.
Quote context
[...]
- Just give him a rundown on the sub and a precis of the stuff in your hand.
- He's liable to ask some direct questions. Give him direct answers. Tell him what you think. Come on.
- Gentlemen, the last 24 hours have seen some extraordinary Soviet Naval activity.
- Mr. Ryan, would you characterize this as a first-strike weapon?
[...]