Is a Linear Launch System Feasible for NASA's Spacecraft? Experts Weigh In

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Discussion Overview

The discussion revolves around the feasibility of a linear launch system for NASA's spacecraft, specifically focusing on the use of linear induction motors and the implications of such a system for reaching space. Participants explore the practicality, potential designs, and operational challenges associated with this concept.

Discussion Character

  • Exploratory
  • Debate/contested

Main Points Raised

  • One participant suggests that a linear launch system could utilize linear induction motors similar to those in rollercoasters, raising concerns about the required velocities and the potential need for maglev technology to prevent wheel burn-off.
  • Another participant questions the assumption that NASA intends to achieve escape velocity with this system, proposing instead that it might be used to assist in lifting the vehicle above the Earth before engaging thrust.
  • A third participant inquires whether a linear system could be capable of getting vehicles into orbit, indicating uncertainty about the system's effectiveness for that purpose.
  • A fourth participant provides a link to an article that may offer additional insights into the topic, suggesting that further reading could clarify some questions.

Areas of Agreement / Disagreement

Participants express differing views on the intentions behind NASA's potential use of a linear launch system, with no consensus reached on whether it could achieve escape velocity or effectively place vehicles into orbit.

Contextual Notes

Participants have not fully explored the technical specifications or limitations of the proposed system, and assumptions regarding the design and operational parameters remain unaddressed.

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So the folks at NASA are thinking about testing a linear launch system. It would uses linear induction motors like rollercoasters are using now.

The trakc would be about 5 miles long and eventually curve up I sure. Once at the end the space vehicle will have gained enough momentum to get into space. I want to know, is this practical? I mean to get a craft into space would require tremendous velocities. The thing would be moving so fast I assume the wheels would burn off. It wouold almost definitely need to be maglev.

Going at mach 28 would either take a very small aerodymanic vehicle or a big extremely stready track. Wonder how long the track would last.
 
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I'm guessing you've misjudged the intentions of NASA. I seriously doubt they are comtemplating having something reach escape velocity.

They might, however, be thinking of using it to get the vehicle a little bit above the Earth and then using thrust. It would make sense that they would want to lessen the tremendous obstacle of getting it off the ground all at once.
 
Well that makes sense. Do you reckon a linear system could get vehicles into orbit?
 

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