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California Higher Speed - But is it Still Rail?

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Posted by Murphy Siding on Saturday, December 20, 2014 7:19 PM

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.

 

  I don't doubt that passenger trains can average that fast.  I was impressed that you were driving that fast.  Were you chasing Smoky and the Bandit?

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Posted by Murphy Siding on Saturday, December 20, 2014 7:22 PM

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.

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Posted by Wizlish on Saturday, December 20, 2014 7:45 PM

Murphy Siding
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.

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...

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Posted by schlimm on Sunday, December 21, 2014 9:09 PM

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.

 

 

 
Try doing the math, Murphy Siding, or a calculator, if you cannot do it in your head.  I said 5 hours and 45 minutes, whch is 5hr X 60min in one hour =300 minutes plus 45 min= 345 minutes.  Heaven knows where the 220 minutes came from.
 

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Posted by narig01 on Sunday, December 21, 2014 9:51 PM
FWIW Column
Elon Musk 's proposal of Hyper Loop is in the category of incredibly, unbelievably, fantastically unbelievable ideas! As in that is as much chance as it has.
One problem about this as with maglev and also airline travel as well, you have to expend energy to lift the vehicle off the ground as well as keep it above the surface underneath. Steel wheel on steel rail technology has consistently proved itself as being the most efficient mode of ground transport. It is also showing with newer technologies to be capable of ever higher speeds.

The best run I have heard about on US highways, Phoenix, Az to West Oakland, Ca in 10 hours and 20 minutes by a convoy of trucks hauling some very very high priority cargo that politicians wanted delivered.

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Posted by CSSHEGEWISCH on Monday, December 22, 2014 7:22 AM

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.

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Posted by Murphy Siding on Monday, December 22, 2014 9:21 PM

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.

 

 schlimm- here's where I'm getting 220 minutes.  You said you drove it in 3 hours, 55 minutes, including a 15 minute stop.

       3x60= 180 minutes
     180+55+ 235 minutes
     235-15= 220 minutes

      What am I missing here?

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Posted by schlimm on Tuesday, December 23, 2014 9:07 AM

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.

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Posted by Murphy Siding on Tuesday, December 23, 2014 10:24 AM

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.

 

OK.  So, you're saying that there was a typo on your part?  Looks like Overmod was better able to interpret what you meant verses what you wrote. Thanks for clearing that up.  I guess it makes sense now, if you had meant 5 hours and not 3 hours.

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