Dark Waters 2003: Submarine Lost Power Scene Real?

  • Thread starter Thread starter darksoda
  • Start date Start date
  • Tags Tags
    Movie
Click For Summary

Discussion Overview

The discussion revolves around a scene from the movie "Dark Waters" where a submarine loses power and an inflatable boat is deployed to help it surface. Participants are questioning the realism of this scenario, particularly regarding the physics involved in buoyancy and the behavior of the submarine and inflatable boat under water.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions the feasibility of inflating a boat outside the submarine without letting water in, suggesting that the submarine's density could be affected by the added volume of the inflated boat.
  • Another participant notes that if the submarine is at a significant depth, the air used to inflate the boat would expand as it rises, potentially causing the boat to explode if there is no way to release excess air.
  • A participant expresses skepticism about the scene's realism, pointing out that the inflatable boat is much smaller than the submarine, which raises doubts about the overall buoyancy dynamics.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the realism of the scene; multiple competing views regarding the physics of buoyancy and the implications of the inflatable boat's deployment remain present.

Contextual Notes

The discussion highlights assumptions about buoyancy, density, and the behavior of air under pressure, but these aspects are not fully resolved or agreed upon by participants.

Who May Find This Useful

Readers interested in physics, particularly buoyancy and fluid dynamics, as well as those curious about the realism of cinematic portrayals of underwater scenarios.

darksoda
Messages
21
Reaction score
0
Hey folks i have a doubt of this old movie, 3 of the main characters are on submarine and the submarine lost power so one of the mans pick the Inflatable Boats and by the hatch throw below of the submarine and then the submarine inflated to the surface. I mean really fake right this scene? thanks for future answers.
 
Last edited:
Physics news on Phys.org
It's a little hard to read what you wrote. An object will float to the surface as long as its density is less than the density of water. And that density is "mass divided by volume". Now, if I read this correctly, they take an inflatable boat, push it outside a hatch (without letting water in?) and inflate it. Since the boat and air (compressed) were already on the submarine, so there is no change in mass in doing that. However, the volume is now the original volume of the submarine plus the volume of the inflated boat. If the submarine was already close to neutral bouyancy, that added volume might well push the density below that of water.
 
But note that if they are at a decent depth, the air put into the boat to inflate it would expand on it's way up and the boat would explode without a method of releasing the excess volume of air.
 
thanks for answer now i see sci fiction ^^ anyway thanks for the answer the inflate boat is tiny then the submarine so doesn't make sense anyway but the trend is to go up right not to sink?
 

Similar threads

  • · Replies 1 ·
Replies
1
Views
10K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 33 ·
2
Replies
33
Views
7K
  • · Replies 3 ·
Replies
3
Views
3K
  • · Replies 10 ·
Replies
10
Views
10K
  • · Replies 6 ·
Replies
6
Views
4K
  • · Replies 1 ·
Replies
1
Views
4K
  • · Replies 8 ·
Replies
8
Views
5K
  • · Replies 5 ·
Replies
5
Views
5K
  • · Replies 1 ·
Replies
1
Views
4K