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0 pointsnerdsniper1mo ago0 comments

Trains have been proven to be able to go at least 375mph [0]. That would make NYC->SF take 6.9 hours to travel the 4162 km. The current average flight time from NYC to SF is 6.7 hours.

So, it's at least technically possible.

China is doing R&D on a partial-vacuum train (basically Musk's hyperloop thing) with a target of 1,243 mph[1]. That's probably a pipe dream, but worth mentioning nonetheless.

> The government should of [sic] bailed out Spirit instead.

I'd be okay with this if all the taxpayers were granted equal shares that their collective money could have purchased at an imputed no-bailout price.

0: L0 Series SCMaglev

1: T-Flight train

0 comments

9 comments · 3 top-level

9999000009991mo ago· 5 in thread

That's straight math. Not assuming any stops or slow downs.

According to Gemini this hypothetical train would take about 18 hours.

It would also cost hundreds of billions of dollars and a decade to build.

Doesn't do much for seeing Uncle John next Tuesday.

I like trains. I like them a lot. But they don't work over long distances. Particular when you have dozens of state and city jurisdictions to cross.

Each of them get a vote.

Honestly I'd be happy just to have quality HSR on the East Coast. Boston to Richmond takes like 12 hours right now.

Maybe the West Coast could get a Seattle to San Diego route.

goda901mo ago

18 hours with seats comfortable enough to sleep in, easy to get up and move around to lounge cars, wifi, and plenty of pretty views? Add some showers onboard and you're totally set. I think there are plenty of people who would take that over flying. A direct flight from NYC to San Francisco is almost 7 hours, not counting the wildly variable time needed to get to the airport and make it to your gate, and then you're still facing delays and prolonged discomfort.

pm901mo ago

Yes, or trains with comfortable sleeper coaches. This is how a lot of intercity rail works in India. I took the Delhi-Bombay Rajdhani express all the time when I was younger; would catch the train in the evening, tasty dinner and breakfast provided on train. The views were breathtaking; its the first time the vastness of India became so clear to me (and how many people were still engaged in farming). It would be so nice to have that in the US.

testing223211mo ago

> It would also cost hundreds of billions of dollars and a decade to build. Doesn't do much for seeing Uncle John next Tuesday.

You just described the building of the interstate highway system, but I doubt there’s a person alive who would say it wasn’t worthwhile.

I fear Americans are simple to selfish to have any desire to do time consuming expensive things that will improve their country long term. They just want benefits for themselves , now.

pm901mo ago

I think Americans aren’t as selfish as most people believe; it’s just that they don’t know any better. Education and awareness is key to change that.

1 more reply

9999000009991mo ago

I would like to fix our health care system first.

Meanwhile, the government could announce a bailout of Spirit tonight.

Wouldn't take nearly as much effort.

1 more reply

haldujai1mo ago· 1 in thread

> The current average flight time from NYC to SF is 6.7 hours.

What's your source for this? I take this flight a lot and I find it hard to believe it's more than 5.5-5.75 on average. Looking at the last few weeks for one of them[0] supports my experience.

Maybe your number has TSA/airport time included.

[0] https://www.flightradar24.com/data/flights/ua1777

dml21351mo ago

It's probably scheduled times. I find that time in the air ends up being about an hour less than the time on the ticket.

jodrellblank1mo ago

> "China is doing R&D on a partial-vacuum train (basically Musk's hyperloop thing) with a target of 1,243 mph"

When the vacuum fails - mechanical failure, human error, natural disaster, attack - air is going to rush into the tube. The speed of sound is how fast air molecules move, so train doing 1243mph might hit into a wall of air coming the other way at 767mph for a 2000mph collision. Don't think "wind isn't that fast", think vacuum implosion[1][2]. The weight of 60+ miles of atmosphere pushing down trying to force air into the tunnel. The principle that moves atmospheric steam engines. The train will then be blown backwards into the train coming behind it for another 1000mph+ collision.

This will be the Hindenburg of the Hyperloop.

[1] https://www.youtube.com/shorts/j-s5Ut5cm50

[2] https://www.youtube.com/shorts/if9xxrRouRY

j / k navigate · click thread line to collapse

0 comments

9 comments · 3 top-level

9999000009991mo ago· 5 in thread

That's straight math. Not assuming any stops or slow downs.

According to Gemini this hypothetical train would take about 18 hours.

It would also cost hundreds of billions of dollars and a decade to build.

Doesn't do much for seeing Uncle John next Tuesday.

I like trains. I like them a lot. But they don't work over long distances. Particular when you have dozens of state and city jurisdictions to cross.

Each of them get a vote.

Honestly I'd be happy just to have quality HSR on the East Coast. Boston to Richmond takes like 12 hours right now.

Maybe the West Coast could get a Seattle to San Diego route.

goda901mo ago

pm901mo ago

testing223211mo ago

> It would also cost hundreds of billions of dollars and a decade to build. Doesn't do much for seeing Uncle John next Tuesday.

You just described the building of the interstate highway system, but I doubt there’s a person alive who would say it wasn’t worthwhile.

I fear Americans are simple to selfish to have any desire to do time consuming expensive things that will improve their country long term. They just want benefits for themselves , now.

pm901mo ago

I think Americans aren’t as selfish as most people believe; it’s just that they don’t know any better. Education and awareness is key to change that.

1 more reply

9999000009991mo ago

I would like to fix our health care system first.

Meanwhile, the government could announce a bailout of Spirit tonight.

Wouldn't take nearly as much effort.

1 more reply

haldujai1mo ago· 1 in thread

> The current average flight time from NYC to SF is 6.7 hours.

What's your source for this? I take this flight a lot and I find it hard to believe it's more than 5.5-5.75 on average. Looking at the last few weeks for one of them[0] supports my experience.

Maybe your number has TSA/airport time included.

[0] https://www.flightradar24.com/data/flights/ua1777

dml21351mo ago

It's probably scheduled times. I find that time in the air ends up being about an hour less than the time on the ticket.

jodrellblank1mo ago

> "China is doing R&D on a partial-vacuum train (basically Musk's hyperloop thing) with a target of 1,243 mph"

This will be the Hindenburg of the Hyperloop.

[1] https://www.youtube.com/shorts/j-s5Ut5cm50

[2] https://www.youtube.com/shorts/if9xxrRouRY

j / k navigate · click thread line to collapse