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SpaceX Hyperloop Pod Competition

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41–50 of 132 posts

Re: SpaceX Hyperloop Pod Competition

#41
post #22

Earlier quoted context omitted.

They are right next to Hawthorne Airport... that's the only place I can see the track being located. The rest of the surroundings are industrial buildings.

Aren't these meant to be underground?

For the most part it is to be elevated over the I-5 median, which helps with right-of-way.

Re: SpaceX Hyperloop Pod Competition

#42

Earlier quoted context omitted.

After Elon said "fuck it" and built his own rocket motors after getting screwed by the Russians, I don't see him wasting any time with politics or property development (who I'd argue would be leeches/vultures trying to extract their tax on the project). He's just commission 2-4 TBMs (tunnel boring machines, about ~$20MM/each), drop them in the ground, and have them start digging hyperloop tunnels.

Hyperloop tubes are elevated, not buried underground.

Says who?

Re: SpaceX Hyperloop Pod Competition

#43

Earlier quoted context omitted.

After Elon said "fuck it" and built his own rocket motors after getting screwed by the Russians, I don't see him wasting any time with politics or property development (who I'd argue would be leeches/vultures trying to extract their tax on the project). He's just commission 2-4 TBMs (tunnel boring machines, about ~$20MM/each), drop them in the ground, and have them start digging hyperloop tunnels.

Hyperloop tubes are elevated, not buried underground.

They don't have to be elevated; they simply need power for the stator plates.

Re: SpaceX Hyperloop Pod Competition

#44
post #12

Earlier quoted context omitted.

Elon Musk doesn't have the time to learn civil engineering, property development, let alone the politics surrounding it.

After Elon said "fuck it" and built his own rocket motors after getting screwed by the Russians, I don't see him wasting any time with politics or property development (who I'd argue would be leeches/vultures trying to extract their tax on the project). He's just commission 2-4 TBMs (tunnel boring machines, about ~$20MM/each), drop them in the ground, and have them start digging hyperloop tunnels.

You don't want to do that for reasons that Elon understands well.

Part of Elon's design for the pylons allows the track to remain stable even when the pylons are moved by an earthquake. Which is kind of important with pods moving around Mach 1. Doing the same thing with a tunnel requires you to have cut a large enough hole to shift the tube inside of. Which is a massively harder piece of engineering.

Re: SpaceX Hyperloop Pod Competition

#45
post #20

> SpaceX will construct a one-mile test track adjacent to our Hawthorne, California headquarters I'm not sure which would be the more remarkable achievement, getting the Hyperloop working, or obtaining the real estate to build a mile-long test track in Hawthorne .

Why not over the parking lots or back alleys, etc?

Re: SpaceX Hyperloop Pod Competition

#46
post #44

Earlier quoted context omitted.

After Elon said "fuck it" and built his own rocket motors after getting screwed by the Russians, I don't see him wasting any time with politics or property development (who I'd argue would be leeches/vultures trying to extract their tax on the project). He's just commission 2-4 TBMs (tunnel boring machines, about ~$20MM/each), drop them in the ground, and have them start digging hyperloop tunnels.

You don't want to do that for reasons that Elon understands well. Part of Elon's design for the pylons allows the track to remain stable even when the pylons are moved by an earthquake. Which is kind of important with pods moving around Mach 1. Doing the same thing with a tunnel requires you to have cut a large enough hole to shift the tube inside of. Which is a massively harder piece of engineering.

Interested. TBMs are designed to drill through the earth, and then to wrap the tunnel walls with concrete blocks that are rated to last over 100 years. I'm curious if a TBM could cut through the earth and build hyperloop infrastructure behind it as well.

As with everything, there are tradeoffs. Building above ground means land use issues, and the tunnel needs to be so small you can't stand in the hyperloop pods. Building underground means more support infrastructure, but you're limited less by politics and land use problems and more by engineering.

The questions is: which is cheaper to solve? Engineering? Or politics?

Re: SpaceX Hyperloop Pod Competition

#47
The 9 engineering points at the end of the text, are very important and extremely dificult each one of them.

I would add a pod decompression, and the emergency braking emergencies. Common oxigen masks don't work above 50000' and you can not dissipate the kinetic energy of a pod traveling at 900km/h just by friction without a brake fire.

Re: SpaceX Hyperloop Pod Competition

#48

Earlier quoted context omitted.

After Elon said "fuck it" and built his own rocket motors after getting screwed by the Russians, I don't see him wasting any time with politics or property development (who I'd argue would be leeches/vultures trying to extract their tax on the project). He's just commission 2-4 TBMs (tunnel boring machines, about ~$20MM/each), drop them in the ground, and have them start digging hyperloop tunnels.

I think it's reasonable to expect at this point that there would be quite a lot of people willing to help Musk battle various leeches and vultures.

And a quite a lot of people presenting themselves that way will be various leeches and vultures.

Re: SpaceX Hyperloop Pod Competition

#50
post #20

> SpaceX will construct a one-mile test track adjacent to our Hawthorne, California headquarters I'm not sure which would be the more remarkable achievement, getting the Hyperloop working, or obtaining the real estate to build a mile-long test track in Hawthorne .

Why not over the parking lots or back alleys, etc?

Cost. A full-scale hyperloop needs to be on pylons, but a 1-mile test track can be built directly on the ground, which would be a lot cheaper. Why pay for pylons if you don't have to?
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