Flying saucer. Picture, project of a spacecraft

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Discussion Overview

The discussion revolves around the concept and design of a flying saucer as a reusable spacecraft, incorporating ideas about propulsion methods, aesthetics, and references to science fiction. Participants explore theoretical principles, artistic representations, and personal impressions of various spacecraft designs from films and literature.

Discussion Character

  • Exploratory
  • Technical explanation
  • Conceptual clarification
  • Debate/contested

Main Points Raised

  • One participant presents a principle and scheme for a flying saucer, suggesting it could utilize a solar sail.
  • Another participant shares an image and inquires about the tools used for its creation, referencing the sci-fi classic "Forbidden Planet" and its blueprints.
  • Further contributions include references to spacecraft designs from "Lost In Space" and "Brick Bradford," with one participant advocating for a teardrop shape for its internal space efficiency and speculating on antigravity propulsion.
  • A detailed explanation of a proposed motion principle for a flying saucer is provided, describing a system of two interconnected bodies that repel and attract each other, with considerations of air resistance and energy transfer.
  • The explanation includes a hypothetical mechanism for propulsion based on interactions with air and solar wind, suggesting that the system could potentially exceed the speed of light under certain conditions.

Areas of Agreement / Disagreement

Participants express a variety of viewpoints on spacecraft design and propulsion methods, with no clear consensus reached on the effectiveness or feasibility of the proposed ideas. The discussion includes both speculative and technical elements, indicating ongoing debate and exploration of the topic.

Contextual Notes

Some claims about propulsion mechanisms and the principles of motion remain speculative and lack detailed mathematical backing. The discussion also reflects varying interpretations of science fiction influences on spacecraft design.

MasterJgon
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Principle, scheme, images of a flying saucer. Reusable spaceship of the future. Spaceship with a solar sail.
 

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Here's another from Lost In Space:

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The best designed spacecraft I have ever come across was one from a very old scifi movie(comic) called Brick Bradford(IFIRC). It was a sphere or teardrop shape with four extendable landing legs. I have always though this would be the most suitable shape as it would have the most internal space to put all the gear into. Obviously some sort of antigravity drive was used for propulsion.
I enjoyed the Forbidden Planet movie as it had great effects and a reasonable story line. The robot Robbie was the best robot I have seen for many years.At least he had a fair lick of sense, more than the useless robot in Lost in Space(tv series).
The scfi movie that impressed me the most was 2001. To me the effects were so realistic I had wonder how it was done. Still the best scifi movie of all time as far as I am concerned.
 
This painting
 
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The principle of motion of a flying saucer can be described as repulsion, in which one body gives acceleration to another, and receiving opposition from the force of inertia of another body, accelerates itself. I have not found any explanation of what repulsion is. Perhaps this is a jet propulsion.
Consider the engine as a system of two interconnected bodies that repel and attract each other. At the same time, their common center of mass remains in place. If during their repulsion a force acts on one of the bodies to resist its movement, then the other body, according to the law of conservation of energy, moves further. And the common center of mass of two bodies shifts. Thus, the system comes into motion. Thus, it is repelled by the force resisting the movement of one of the bodies.
In order to obtain this resistance force in the air, we make one of the bodies in the shape of a sphere so that it is streamlined, and the second is given a plate shape so that it experiences maximum air resistance during movement.

When these 2 bodies repel each other in the air, the plate gets more resistance and moves a shorter distance, and the ball gets less resistance and moves a greater distance. And the whole system moves. If the bodies are pulled back at the same speed, then we get a car with an umbrella, and the system returns to its original position.
But if the bodies are attracted with greater speed, then as a result of acceleration, their mass and kinetic energy becomes larger, the plate gets more air resistance. But at the same time, the plate transfers its energy to the air, and the air around the plate begins to move in the direction in which it pushed it. The movement of air by inertia continues even after the plate has ceased to push it. A wind is formed which pushes the plate like a sail. At this time, the plate is slowly attracted to the ball, creating a force directed against the wind. The energy of the plate, and the force that it creates in this case is less than that which it gave to the air by the previous action. As a result, the air flow drives the entire system. Thus, the original two-body system is repelled by the wind, exerting pressure on it from one side.

Similarly, this system works in space, starting from the solar wind, if the plate is a sail. Since the solar wind creates the sun, there is no need to create it. Due to the fact that the speed of the light wave is greater than the speed of the system, the light waves constantly put pressure on it from one side and it can keep pushing away from them until it reaches the speed of light. Perhaps, having pushed off from the light one last time, and not having received resistance to moving forward, it will exceed the speed of light as much as it can push off.
 

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