Corrected entry: As Ryan embarks to shoot it out with the KGB agent down amid Red October's ballistic missile tubes, Ramius warns Ryan to be careful what he shoots at, because the nukes don't "react well to bullets". Of course it's wise to be careful with guns, but you could unload an assault rifle on the tubes and the nukes inside wouldn't care. The tubes are tough enough to stand up to launching their rockets. A stray bullet would be nothing.
Corrected entry: In the scene where the US is going to drop a torpedo on the Red October, when the helicopter lifts off from the deck, the torpedo is mounted on the starboard side. After the drop order, it drops from the port side of the chopper.
Corrected entry: In the scene when Ryan first meets the captain on the aircraft carrier, he explains that the uniform was Greer's idea, and the captain answers, "You work for Jim Greer?" After Ryan leaves, they discuss Ryan's ring, and the captain says, "Greer told me." He seems surprised Ryan works for Greer, but was briefed about the mission by Greer.
Corrected entry: In the scene where Ryan releases himself from the helicopter, the CO of the Dallas promptly sounds off, "Man overboard port side", then proceeds two levels down where he sees two personnel dragging in a very wet Ryan. Two levels down on a 688 class submarine is significantly below the waterline and there is no access overboard at that point.
Corrected entry: Jack dictates messages for the captain to send to Ramius. He writes down a message asking Ramius if he wants to defect and to meet them at...then searches for a map. He finds the name Laurentian Abyssal and rushes back to the captain - without writing it down - and the captain sends the written message. Laurentian Abyssal is not mentioned verbally and Ramius abruptly ends the dialogue.
Corrected entry: Wire guided torpedoes you can steer and provide input to as long as the wire doesn't break. Air dropped, ship fired, and ASROC's don't give you the option.
Corrected entry: When the DSRV disengages from the Dallas, the pilot floods the skirt and then reports that they have a 'soft seal', meaning they are still lined up with the Dallas's hatch but it's not watertight. When they dock with the Red October, he again reports a 'soft seal', and then the other guy goes to immediately open the hatch. Shouldn't they do a 'hard seal' or whatever they call it to seat the DSRV firmly against the Red October first and keep the water from rushing in when the hatch opens?
Corrected entry: It is stated early in the movie that the Caterpillar drive, a magneto-hydrodynamic propulsion system, has no moving parts and simply uses magnets to squirt water out the back silently. Yet when Jonesy is investigating the disappearance of the Red October he plays a recording of the caterpillar drive at 10X speed and we hear banging of metal parts and pistons. The movement of these parts causes him to say "now that's gotta be manmade." (00:52:45)
Corrected entry: When we first see Sean Connery and Sam Neill, they're standing at the top of the Red October, looking out over the bleak Polijarnyj inlet, supposedly full of apprehension about the dangerous mission they're about to attempt. However, as Sam Neill says, "Pora tovarishch kapitan" ("It's time, Comrade Captain"), he's starting to smirk, and as the camera zooms back to focus on Connery's face, Neill cracks up completely and has to turn away. He partially regains control of himself after Sean Connery has said, "Nu, pora," and turns back to face the camera. What was he laughing about? Did they both feel funny about trying to speak Russian?
Corrected entry: The Dallas submarine chasing Red October uses a very sophisticated sound analysis to localize the Russian sub because of its silent drive system. Red October does not notice the Dallas with its conventional propeller drive at all, until it deliberately reverses the propeller at full throttle at close distance. The Red October is not (deliberately) deaf however: the aircraft dropping a torpedo is signaled from great distance, but not the Dallas surfacing and picking up Jack Ryan from a helicopter. Furthermore, "crazy Ivan" turns are made to be sure no sub is following them, yet the encounter with the Dallas comes as a surprise.
Corrected entry: When Ryan is being lowered to the Dallas from the helicopter, and until he releases the line to drop into the water, the Dallas is moving forward leaving a wake. Yet when the camera shot changes to show Ryan floating in the water amid ship the Dallas, the Dallas is completly stopped. The Dallas could not have stopped instantly when Ryan hit the water, even if the captain could have ordered it that quickly.
Corrected entry: How in the world did Captain Tupolev, the commander of the soviet attack sub, know where to locate the Red October and the Dallas? In the vast Atlantic Ocean, only a few people know the location of where the crew exchange would take place. If Tupolev knows where to find them, how come the rest of the Soviet Navy does not?
Corrected entry: When Jack Ryan briefs the National Security Advisor and the rest at the White House, he relays to them what he learned from Greer's report: that the Dallas had been following the Red October before it "up and disappeared." Yet later on, when Ryan is onboard the aircraft carrier, Ryan and his defection theory appear out of luck until he notices a solitary sub on the monitor, the Dallas. He asks the officer about the boat as if he'd never heard its name before, and is told that the Dallas had been reporting a magma displacement. Ryan then seems to put two and two together, and realizes the Dallas found the Red October. None of this makes any sense. Ryan already KNEW the Dallas had found the Red October. Greer told him. And the Dallas didn't report a magma displacement; the sonarman on the Dallas, Jones, had already identified it as a a Typhoon-class sub before it disappeared, at which point the computer identified it as a magma displacement. When Jones listened to the "magma displacement" at high speed, he heard the sound of doors opening, and deduces it must be a sub with a new silent propulsion system. Basically, Ryan knew enough to have gone straight out to the Dallas as soon as he left Washington.
Corrected entry: In the opening sequence, the name of the movie fades in with a seemingly expensive (by 80's standards) computer generated effect, first in Russian, then fades into English. Considering the money involved in making the movie and this shot, you'd think that they could have spelled 'Red October' right in Russian, rather than what translates as 'Octaver'.
Corrected entry: When Jack is on the plane and when he is walking through the airport with two FBI-looking men, he is wearing a white turtleneck sweater under his trench coat. As he enters Admiral Greer's office and takes off his coat, he is suddenly dressed in a crisp white dress shirt and tie with a suit jacket. (00:06:55 - 00:08:15)
Corrected entry: In the scene after the silent drive was first engaged and Red October changes course to south-west, a seaman is shown plotting the new course. The map shows the track of the submarine as if it had left from Nordkapp, which is in Norway, a NATO country. The Red October had left from the harbor of Polyarni, which is located next to Murmansk, some 300-400 kilometres to the east.