schlimm Obviously (to Overmod, at least) it was a typo, a 3 for a 5, given the context of the previous sentence giving Google times in the 5+ hour range.
Obviously (to Overmod, at least) it was a typo, a 3 for a 5, given the context of the previous sentence giving Google times in the 5+ hour range.
Thanks to Chris / CopCarSS for my avatar.
C&NW, CA&E, MILW, CGW and IC fan
schlimm http://www.wired.com/2014/12/jumpstartfund-hyperloop-elon-musk/ As to the 382 mile drive, Google Map says the time would be 5 hr 28 min. to 5 hr 44. The speed limit varies, 65 - 70 mph. The only time I ever drove it, it took 3 hours, 55 minutes, including a 15 minute stop.
http://www.wired.com/2014/12/jumpstartfund-hyperloop-elon-musk/
As to the 382 mile drive, Google Map says the time would be 5 hr 28 min. to 5 hr 44. The speed limit varies, 65 - 70 mph. The only time I ever drove it, it took 3 hours, 55 minutes, including a 15 minute stop.
The jury is still out on Elon Musk's electric cars but I have the feeling that the speculators (I wouldn't call them investors) who bought Tesla shares will live to regret it. Musk appears to have a blind acceptance of "gee-whiz" technology and its purported ability to advance society. He also appears to have a blind eye as to what this will cost and where the money will come from.
Murphy Siding Overmod Murphy Siding 382 miles in 220 minutes is 1.737 miles per minute, or 104.22 m.p.h. That's interesting. But have you noticed that, unless you are using some very unusual conversion factor, your "220 minutes" are not equal to the 5hr 28min to 5hr 44min that schlimm quoted? The lower time figure works out to just what I'd expect: call it 70mph within the bounds of rounding errors. Sorry I wasn't clearer. The 220 minutes was a reference to how fast schlimn had driven that route- 3 hours 55 minutes, less a 15 minute stop.
Overmod Murphy Siding 382 miles in 220 minutes is 1.737 miles per minute, or 104.22 m.p.h. That's interesting. But have you noticed that, unless you are using some very unusual conversion factor, your "220 minutes" are not equal to the 5hr 28min to 5hr 44min that schlimm quoted? The lower time figure works out to just what I'd expect: call it 70mph within the bounds of rounding errors.
Murphy Siding 382 miles in 220 minutes is 1.737 miles per minute, or 104.22 m.p.h.
That's interesting. But have you noticed that, unless you are using some very unusual conversion factor, your "220 minutes" are not equal to the 5hr 28min to 5hr 44min that schlimm quoted?
The lower time figure works out to just what I'd expect: call it 70mph within the bounds of rounding errors.
Sorry I wasn't clearer. The 220 minutes was a reference to how fast schlimn had driven that route- 3 hours 55 minutes, less a 15 minute stop.
Murphy SidingSorry I wasn't clearer. The 220 minutes was a reference to how fast schlimn had driven that route- 3 hours 55 minutes, less a 15 minute stop.
Sorry, I didn't see that until after you mentioned it. I was just assuming that 3 was a typo for 5.
I've been down the 15 from the end of 70 down to St. George averaging 114 mph (in a convoy of about 5 vehicles) but that involved some sustained running at decidedly 'statutory reckless driving' speed; not something most cars' limiters would permit. I suppose in the right car, with the right driving experience (which I presume schlimm would have) it could be done on the 5, if all you counted was the highway mileage and not the 'last miles' at either end. (And if your Valentine One was working properly...)
I'd like to hear the story of that run, though, if done that fast...
schlimm Murphy Siding 382 miles in 220 minutes is 1.737 miles per minute, or 104.22 m.p.h. !That's 104.22 m.p.h. average, not taking into account acceleration, deceleration, and the speed of sound / air density factors Many trains (hourly, as I recall) run non-stop from Hamburg to the Berlin Spandau station: 178 miles in 90 minutes, 118 mph. No big deal on a modern system.
Murphy Siding 382 miles in 220 minutes is 1.737 miles per minute, or 104.22 m.p.h. !That's 104.22 m.p.h. average, not taking into account acceleration, deceleration, and the speed of sound / air density factors
Many trains (hourly, as I recall) run non-stop from Hamburg to the Berlin Spandau station: 178 miles in 90 minutes, 118 mph. No big deal on a modern system.
Murphy Siding382 miles in 220 minutes is 1.737 miles per minute, or 104.22 m.p.h.
Murphy Siding382 miles in 220 minutes is 1.737 miles per minute, or 104.22 m.p.h. !That's 104.22 m.p.h. average, not taking into account acceleration, deceleration, and the speed of sound / air density factors
Semper Vaporo oltmannd Victrola1 LA TIMES, JUNE 11, 1972BEGIN ARTICLE QUOTE""L.A. to N.Y. in Half an Hour?10,000 - M.P.H. Tunnel Train Plan Developed http://www.reptoids.com/Vault/Underground/LA2NYnHalfnHour.htm This sounds much faster. There's a section in there "Breaking Generates Power" . Ouch! I could almost understand it if it were "regenerative BRAKING", but how to you generate power from "BREAKING" the train? Maybe they are spliting an atom or two in the process of BREAKING the train?
oltmannd Victrola1 LA TIMES, JUNE 11, 1972BEGIN ARTICLE QUOTE""L.A. to N.Y. in Half an Hour?10,000 - M.P.H. Tunnel Train Plan Developed http://www.reptoids.com/Vault/Underground/LA2NYnHalfnHour.htm This sounds much faster. There's a section in there "Breaking Generates Power" . Ouch!
Victrola1 LA TIMES, JUNE 11, 1972BEGIN ARTICLE QUOTE""L.A. to N.Y. in Half an Hour?10,000 - M.P.H. Tunnel Train Plan Developed http://www.reptoids.com/Vault/Underground/LA2NYnHalfnHour.htm This sounds much faster.
LA TIMES, JUNE 11, 1972BEGIN ARTICLE QUOTE""L.A. to N.Y. in Half an Hour?10,000 - M.P.H. Tunnel Train Plan Developed
http://www.reptoids.com/Vault/Underground/LA2NYnHalfnHour.htm
This sounds much faster.
There's a section in there "Breaking Generates Power" . Ouch!
I could almost understand it if it were "regenerative BRAKING", but how to you generate power from "BREAKING" the train? Maybe they are spliting an atom or two in the process of BREAKING the train?
Johnny
Semper Vaporo
Pkgs.
But how many years and trillions of dollars would it cost to build such a system? Tunneling under the Mississippi and other major waterways, and the Rocky Mountains?
Did trolley cars use regenerative breaking?
-Don (Random stuff, mostly about trains - what else? http://blerfblog.blogspot.com/)
54light15 I dunno, I kind of like the idea of a supersonic bus. Really, what could go wrong? But there was a movie where a bus had to keep it's speed above 50, if it dropped below 50 it would explode! I think the movie was called "The Bus That Couldn't Slow Down."
I dunno, I kind of like the idea of a supersonic bus. Really, what could go wrong? But there was a movie where a bus had to keep it's speed above 50, if it dropped below 50 it would explode! I think the movie was called "The Bus That Couldn't Slow Down."
The movie was "Speed".
And then there's this: HSB
I dunno, I kind of like the idea of a supersonic bus. Really, what could go wrong? But there was a movie where a bus had to keep it's speed above 50, if it's speed dropped below 50 it would explode! I think the movie was called "The Bus That Couldn't Slow Down."
The group is still a long way from actually producing a working Hyperloop, but it's already made serious progress on how an eventual system might look. The group envisions three classes — economy, business and freight — with dozens of possible routes across the US. The group is also looking into improvements on the initial design. "In the initial white paper, air has the advantage that it's cheap, but it also has problems with control," says CEO Dirk Ahlborn. If another medium performs better in testing, it will be easy to switch. After initial financial projections, the cost for the trans-California route is expected to fall between $7 and $16 billion — a good deal higher than Musk's initial estimate of $6 billion, but still a bargain compared to existing rail projects. "The biggest thing for me is the price," says Ahlborn. "We know it's not going to cost $50 billion — we know we're in a range that works."
http://www.theverge.com/2014/12/18/7418387/the-slow-humble-return-of-the-hyperloop
Murphy SidingTo make the 383 mile trip in 30 minutes, you'd have to be going 760 m.p.h. for the entire distance. Or, since the speed would be 0 m.p.h. at each end, I suppose you could go an average of 760 m.p.h.
Depends on the acceleration rate. Transit and trains count on no more than 0.1g (2-3 mph/sec). If you're all strapped in, maybe you could do a half g or better or so in the tube - lets call it 15 mph/sec - Corvette performance. It would take about a minute and 5 miles to get to 760 mph. So the total trip would be 31.5 minutes.
If you used 3 mph/sec, it would be four minutes and 25 miles to 760 mph. Total trip time would be less than 35 minutes.
oltmanndMurphy SidingThe article says speeds up to 760 m.p.h. Isn't that breaking the sound barrier? The tube is going to be mostly evacuated, so the speed of sound will be much higher. (the lower the air density, the higher the speed of sound)
The speed of sound in air is virtually independent of pressure. It is much more dependent on temperature and humidity. Look up speed of sound in Wiki.
Murphy SidingThe article says speeds up to 760 m.p.h. Isn't that breaking the sound barrier?
The tube is going to be mostly evacuated, so the speed of sound will be much higher. (the lower the air density, the higher the speed of sound)
WizlishEngineered by architecture students. What could go wrong?
That caught my ears, too.
It will look pretty! At best, it won't run. At worst, people die.
The question you posed in the subject line has me intrigued... if there is no rail then it it "rail". I'd say no. But then if it is a single vehicle... is it a "train". I think maybe they are actually proposing a highspeed "BUS" that uses it own private "road".
schlimm YoHo1975 LA to SF in 6 hours? There is no day nor time when that is possible....legally. 383 miles on the 5. 6 hours = average speed of 64 mph. Driving at 70 mph is hardly impossible.
YoHo1975 LA to SF in 6 hours? There is no day nor time when that is possible....legally.
383 miles on the 5. 6 hours = average speed of 64 mph. Driving at 70 mph is hardly impossible.
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