Guy

18th Feb 2008

Down Periscope (1996)

Corrected entry: Near the end of the movie, the Stingray surfaces to run on top as it approaches the target ship. At some point afterwards, Dodge decides to take a shot at the ship with two torpedoes. Dodge is using the periscope to get the range, etc. to the target, and then fires the torpedoes. First, wouldn't they be on the bridge (outside) if they were running on the surface? And second, wouldn't the torpedoes be running near the surface of the water if they had been fired from a sub that was on the surface, instead of what appears to be deep water? In both cases it appears as if the Stingray were submerged when they fired the torpedoes, not running on top as it showed prior to firing the torpedoes. No order was given to "dive" before this series of events.

Correction: First, it is a character choice on Dodge's part not to go topside. The time and confusion created by the move would probably not be worth the advantages (if any) of changing locations. Second, even though the Stingray is running on the surface, at least four of her six forward torpedo tubes are still submerged. Therefore, torpedoes fired underwater make perfect sense. In addition, if they were fired in "deep water" the torpedoes would pass under the target ship.

Guy

Correction: The running depth of a torpedo is not determined by the depth of the tube launching it, but by the guidance program on board the torpedo. Also, modern torpedoes do run well below the surface since striking the side of a ship may not result in sufficient damage. Instead, torpedoes run beneath the ship and detonate below it in order to create a pressure wave to "break the back" of the target. That said, (and setting aside the fact that the SS-161 was decommissioned in 1930), it's unclear if the 1958 refit would have equipped the Stingray with "modern" torpedoes, but it is certainly possible. And, yes, the movie does depict a hull strike for each of the fish.

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