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Hyperloop One's Full-Scale Pod Reaches 192 MPH In New Nevada Track Test (techcrunch.com)
On July 29, 2017, Hyperloop One competed a test at its full-scale Nevada test track that travelled a high speed, running nearly the entirety of the 500 meter (1640 foot) test route. "XP-1, the company's first Hyperloop pod, reached speeds of up to 192 mph during the test, which is getting closer to the planned functional speeds of future Hyperloop installations planned for Dubai elsewhere," reports TechCrunch. From the report: The new test breaks the recorded speed record for any Hyperloop tests ever conducted, including those done by research organizations participating in SpaceX's pod design competition. It was conducted on July 29, 2017, and included a 300 meter acceleration phase, with gradual breaking to come to a stop after that point. Hyperloop One depressurized the tube for the test track down to conditions similar to those at 200,000 feet above sea level, which is part of the Earth's atmosphere where there is very little friction and resistance to the rarified air. The company says that all aspects of the system, from motors, to electronics, to the vacuum pump and magnetic levitation mechanism worked well during the test.
Not content with smashing elementary subatomic particles, not content even with accelerating protons or lead ions, now they want to accelerate people, inside long evacuated tubes, to ridiculous speeds.
John_Chalisque
It's still slower than bullet trains, Formula 1 cars, Indycars, and even the stock cars in NASCAR. Let me know when they've finally achieved something worthwhile.
I hope they are actively working on the airlocks because (I predict) that's going to be the most troublesome part of the system, in practice.
"New Nevada Track Test"
I'd like to welcome our most recent member - New Nevada, which joins New England, New Jersey, New York and New Mexico in making news!
"National Security is the chief cause of national insecurity." - Celine's First Law
To dig a hyper loop hole from santas workshop to didney worl
They are expensive, temperamental, inefficient, and there is a reason scientists say "Nature abhors a vacuum".
All I can say is, "I want the contract to maintain the 1,000's of miles of vacuum tube!"
I want to know where Dubai elsewhere can be found on the map.
It turns out there are a lot of people what need smashin'
"There is more worth loving than we have strength to love." - Brian Jay Stanley
with gradual breaking to come to a stop
Goddamnit.. the word is braking.
It's not fast enough ... (fill in your own ad hominem)
It's not long enough
You can't get permission to build it
It's too dangerous
It's too noisy
It's too expensive
It doesn't cover everyone's needs
Elon Musk
Slashdot, proudly fighting progress for 20 years.
High speed rail in China already goes 190-220mph. Exactly how is this better?
Trains are problematic in the US for numerous reasons, so even having a "fast" train won't solve many issues. Japan has a functional train system with cities designed around them. citation but once you need to get away from the main train station the novelty of trains quickly wears off.
-The wise argue that there are few absolutes, the fool argues that there are no probabilities.
Wouldn't better VR conferencing make business travel less critical and thus negate much of the need for Hyperloop?
“Common sense is not so common.” — Voltaire
Not so much, from reports I've heard. Why can't we get one of these, instead of the stupid sh?t that our idiot government is giving us?
It covered nearly the entirety of the 1640 foot meter test track? And hit 192 MPH?
Let's be generous and say it traveled one third of a mile, and let's assume it accelerated linearly (it didn't) from 0 to an instantaneous peak of 192 MPH, then immediately decelerated linearly back to 0 (and stopped). That gives an average velocity of 96 MPH.
The thing ran for less than 12.5 seconds.
Another hyper loop news item thread. And still no mention anywhere about how they are going to deal with the problem of containment failures. Everything else they are doing is basically routine in comparison.
I am not a naysayer and I would love it if they actually managed to implement this. I just don't see how.
Going nowhere fast.... Be still my beating heart.
"File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
v1^2 - v0^2 = 2ad
a = (v1^2 - v0^2) / 2d
v0 = 0
v1 = 192 MPH
d = 300 meters
a = (192 MPH)^2 / (2 * 300 meters) = 12.28 m/s^2
= 1.25 g
arctan (1.25 g / 1 g) = 51.3 degrees
That's gonna be trippy riding inside. Since there are no windows, you only have the apparent direction of gravity (acceleration) to determine "up". It's going to feel like you're in a plane climbing up at a 51 degree angle. That is, anyone trying to stand while this is going on is going to be leaned forward at 51 degrees relative to vertical at rest. (I'll add that the earlier test to 69 MPH in 30 meters is 1.68g, giving an apparent inclination of 58 degrees.)
192 mph (309 km/h) is a nice achievement, but it does not look like a breakthrough. French TGV has been reaching 200 mph (320 km/h) for regular service since 2011, with plain old rails and without vacuum. And there have been tests at much higher speed.
What is the point of all this stuff if it barely reproduce six years old performance? are there plans to go faster?
SPLAT!
Can someone enlighten me with info about the throughput of this system of small high-speed capsules? A regular trains and airplanes transport large number of people at once, making them economically scalable.
.....(hundreds if not one thousand miles) is what Hyperloop needs to demonstrate.
Robust to various conditions and accidents.
That is the hard bit.
If maglev trains can get to hundreds of miles per hour in air they will obviously go faster in vacuum.
That demonstrates very little.
Speeds that barely beat a Tesla S in open air, and a partial rebuild needed after every trip. Going nowhere fast, except in the money-burning category. Anybody monitoring the luxury purchases of the principals?
Finally a proper response to the Thunderf00t videos? I've been hoping there would be some sort of refutation of his pretty solid points. https://www.youtube.com/watch?... https://www.youtube.com/watch?... https://www.youtube.com/watch?... Hopefully this has been overcome! These videos worried me!
Marky Mark Killed Jason Bourne!
If this becomes real, and if there were an accident, I'd hate to be the guy that has to scrape off what's left of the passengers from whatever they collided with. 700mph..cheesh.. a thin layer of organic goo and a fine red mist.
-- "This world is a comedy to those who think, a tragedy to those who feel."
Japan's Shinkansen has a higher top speed at enormously lower costs. So why bother with the stupid thing?
Imagine travelling in a metal vacuum tube that has surface temperature of 50 or more degrees Celsius. Makes for a very uncomfortable ride with no air conditioning. Dubai is wrong place for this first deployment.
The politics may well prove impossible.
I had a dream, bright and carefree, but now there's doubt and gravity
(I am not interested in getting involved in an abstract discussion about all this, but would certainly welcome any reliable source of information about the exact conditions of this test)
From the small real chunks in the video and the limited information in the linked article, I understand that:
- We are talking about accelerating a small vehicle (as big as a small truck?) from zero to 300 km/h in 300 m and then keeping that speed for about 500 m.
- It seems that it is a kind of a small train (better: the small locomotive of a train) over fancy rails travelling as any other train (or IC-powered, rail-based vehicle) would do. No idea about the exact effect of all this vacuum breakthrough technology, but it doesn't seem to matter too much here (= speed mostly constrained by the friction of the wheels against the rails).
After some research and by making lots of assumptions because of the limited amount of information in that article (again: I will be more than happy to update this post if anyone could provide reliable enough information about the exact conditions), it seems to have a reasonably good acceleration for what seems its weight by comparing it with equivalent road-based alternatives (i.e., fast cars or trucks). On the other hand, the friction wheel-rail is much lower than the one wheel-road (rolling resistance values); to not mention the fact that the contact surfaces of the typical wheels of road-based vehicles are much bigger than what seems to be shown in the video (i.e., the aforementioned factor would have to be still smaller?). Comparing this with the acceleration of a train locomotive might be more accurate, but I haven't been able to find any reliable reference to that alternative.
In summary, it seems a difficult-be-compared-against-anything-else sample of well-known technology (= vehicle on rails) under extremely limited conditions (a straight stretch of 300+500 m!) and by providing almost no relevant information. Also I guess that reaching much higher speeds under these exact conditions wouldn't be too difficult: if much bigger locomotives with many wagons can travel faster than 400 km/h during long (not completely straight!) stretches, these engines should be able to deliver notably higher speeds under notably better conditions (= no wagons/weight + straight and extremely short stretch).
Logically, this new "milestone" (= new CGI-intensive video) has no effect on my medium-/long-term predictions for Hyperloop, as written in a post here some weeks ago (reminder: Slashdot posts cannot be edited/removed and I welcome anyone to quote me on my predictions in that post at any point). Short summary: I don't expect Hyperloop to ever become a reality as it is being advertised; in the best scenario (= losses-driven project eminently supported by have-to-be-done-no-matter-what ideas), it might become an expensive and mostly useless toy.
Custom Solvers 2.0 = Alvaro Carballo Garcia = varocarbas.
It is also an excuse to build vast underground spaces. Why do we need vast underground spaces, you might ask? If I had to make a guess, they are built as shelters against a nuclear/biological/chemical attack.
Their risk are on the rise and while there are many kinds of defensive systems like anti-missile-lasers, it is better to prepare for the worst. Few things are more secure than hundreds or thousands of km of deep tunnels _designed_ to accurately control the air inside them.
Don't believe me? See if their vacuum/air conditioning systems are "over engineered" to cover for use cases outside the Hyperloop.
And back to zero in the remaining 200m is about -1.8G
This is nothing special.
Call us again when it reaches high velocity (somebody said 1220kph / 760mph ?).
Then call us when somebody breaks the vacuum while the vehicle moves at that speed so we see how safe it is. (Preferably from a distance, while an internal camera films dummies turning to mush)
After that lt's see where it goes.
Irrelevant news and morons using moderation to mod down what they disagree on. 2018 resolution: so long.
So what? My Meridian is still faster and goes where I want it to go (so far... have yet to want to go somewhere that there wasn't an airport nearby).
How are they planning to handle the occasional earthquake that might cause a permanent shift along a fault line?
nt
I stated that there are numerous reasons things work in Japan, or other countries that are heavy train users for that matter, and quite frankly amazed that I have to point them out.
Distance between Tokyo and Kobe, 320 miles. That is a bit more than half of the whole country of Japan. Distance beween Kobe and Osaka, or Osaka and Kyoto is between 20 and 30 miles.
Compare that to say the two largest cities in just California, 404 miles apart. SF and the Middle of the country, 1,800 miles. Distance between coasts at around 3,000.
Now do that same comparison with Germany, or France, or the UK, or Spain, or any other county you wish. As the land mass increases (Russia/India/China) the use of trains becomes more and more local and long distance commuting gets less and less.
A high speed train won't convert people, because the time savings even at 300 MPH like a bullet train means hours (plural) on a train to get between cities that you can fly in an hour. I hope I don't need to state that Trains will have stops (like in Japan, Germany, etc..) so you are not going a direct route at top speed ever. The fastest bullet trains between Tokyo and Osaka will take you on average 6 hours, even though it's only 300 miles. You can fly from Tokyo to Osaka in less than an hour.
-The wise argue that there are few absolutes, the fool argues that there are no probabilities.