Russian captains sometimes turn suddenly to see if anyone's behind them. We call it Crazy Ivan.

— Jonesy (Courtney B. Vance)

7 seconds sound clip from the The Hunt for Red October movie soundboard.

You can hear this line at 01:19:56.739 in the Blu-ray version of the movie.

Quote context

[...]

- Actually, I think I will need two wives.

- Oh, at least.

- Possible aspect change on target.

- Sonar, Conn. Aye.

- Concur. Possible target zig based on bearing rate.

- Conn, Sonar! Crazy Ivan!

- All stop! Quick quiet!

- All stop, aye.

- Answers all stopped.

- What's going on, Jonesy?

- Russian captains sometimes turn suddenly to see if anyone's behind them. We call it Crazy Ivan.

- The only thing you can do is go dead, shut everything down and make like a hole in the water.

- So what's the catch?

- Catch is a boat this big doesn't exactly stop on a dime.

- And if we're too close, we'll drift right into the back of him.

- What about you? What do you look forward to?

[...]