Spacecraft Maneuverability: G-Forces in Space?

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Discussion Overview

The discussion centers on the concept of G-forces experienced by a pilot in a spacecraft during maneuvers in space, comparing it to experiences in atmospheric flight. Participants explore the implications of inertia, propulsion, and the effects of high speeds, including speculative ideas about "hyperspace." The scope includes theoretical considerations and speculative scenarios influenced by popular media.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • One participant questions whether G-forces would be felt in space and compares it to the experience in jets on Earth, suggesting that physics laws should apply similarly.
  • Another participant asserts that G-forces would indeed be a significant factor when traveling at high speeds in space, referencing science fiction scenarios where prolonged acceleration is necessary to manage G-forces.
  • A third participant emphasizes that forces in space are related to the inertia of the moving body, indicating that G-forces still exist regardless of the environment.
  • One participant advises against relying on depictions from movies for understanding space maneuverability, suggesting that realistic portrayals are found in specific films and that actual maneuverability depends on propulsion strength rather than artistic representation.
  • This participant also critiques the concept of "hyperspace," stating that it is a fictional construct that does not align with the principles of Einsteinian physics.

Areas of Agreement / Disagreement

Participants express differing views on the nature of G-forces in space and the realism of spacecraft maneuverability as depicted in popular media. There is no consensus on the implications of these forces or the validity of cinematic portrayals.

Contextual Notes

Participants reference various assumptions about propulsion systems and the nature of space travel, but these assumptions remain unresolved and depend on definitions of terms like "hyperspace." The discussion does not clarify the mathematical or physical principles involved in the claims made.

whiterecluse
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I was watching Star Wars and started to wonder. If a man were flying a spacecraft in space, would he be able to turn quickly and speed up quickly? Or would there still be a G force like in jets on earth? Kind of hard for me to explain it. I know that the jets now days can turn faster than the pilots can handle. Would the same physics laws apply in space? And what about when they go into "hyper space"? Can our bodies moving that fast all of the sudden?
 
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Yes you can feel G force in space, and this would be a major hurdle if/when we travel at significant fractions of the speed of light.

In the some sci fi books they have to speed for many months to avoid high G force. Then they have to slow down for many months as well. THis could however help with the need for gravity in space i think?
 
the forces still exist in space. the forces or g's are directly related to the inertia of the moving body.
 
Last edited:
whiterecluse said:
I was watching Star Wars and started to wonder. If a man were flying a spacecraft in space, would he be able to turn quickly and speed up quickly?
First, forget about anything you see in an 'entertainment' type movie. If you want to see realistic space manoeuvring, check out 'Marooned' or '2001'. If you see a fighter or whatever swooping into a nice banked turn, it's only for artistic reasons. You need wings interacting with air to do that. How many gees can be pulled in a movement is entirely dependent upon the strength of you propulsion units. And 'hyperspace' is just a slick way to avoid the fact that you can't reach light speed in Einsteinian space. If you ever have a chance to play an old 'Asteroids' arcade game, you'll have a better idea of how a real spaceship would behave. :cool:
 

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