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The Problem With Fast Trains: What Happened to Hovertrains?

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In 1974, a French train sets a speed record, exceeding 250 miles per hour. But this train is unlike any other before it. Instead of rolling on train wheels, it hovers on a cushion of air. In the 1970’s hovertrains were seriously being considered the solution to slow, antiquated railways, which increasingly had to compete with new superhighways and even intercity air travel. Without the rolling resistance of train wheels, hovertrains promised greater efficiency and much higher speeds. By feeding high pressure air through lifting pads, hovertrains float on a cushion of air much like a hovercraft. One of the most widely known hovertrain prototypes was called the Aerotrain. Lead engineer Jean Bertin and his team in France, designed several versions, including one that could carry 80 passengers. The i80HV was powered by a turbofan sourced from an airliner, producing over twelve thousand pounds of thrust. At the front, a 400 horse power gas-turbine supplied high-pressure air to hover the twenty loaded train a quarter of an inch off its guideway. The British and Americans also experimented with hovertrain technology, incorporating the linear induction motor for improved efficiency. British research led to the development of the RTV-31 Tracked Hovercraft, and the American’s developed several prototypes, culminating in the development of the Urban Tracked Air Cushion Vehicle (UTACV). But like their counterpart the Maglev, Hovertrains failed to revolutionize rail. Hovertrains, Maglevs, or any other innovative alternative to rail has to compete with nearly a million miles of rail line already in existence. With stations and infrastructure built-out in nearly every city in the world. The limitations of conventional railways were overcome not a single innovative leap forward, but by incremental improvements. Existing rail networks were modernized with sections of track that could handle higher speeds. New signaling technologies were developed along with more advanced wheelsets. #Hovertrain #Aerotrain #TrackedHovercraft #YesterdaysFuture The first 200 viewers to sign up at https://brilliant.org/mustard will get 20% off their annual premium subscription Want to help Mustard grow? Support us on Patreon: https://www.patreon.com/MustardChannel Music (reproduced under license): Intro: "The Future": https://audiojungle.net/item/the-future/13081195?s_rank=41 Main # 1: "Puzzling Discoveries" https://audiojungle.net/item/puzzling-discoveries/21196248?s_rank=1 Main # 2: "Retro" https://audiojungle.net/item/retro-wave/18103181?s_rank=5 Outro: "Cool Funk Stomp" https://audiojungle.net/item/cool-funk-stomp/20849218?s_rank=11 Thanks for watching! Please Like, Comment and Subscribe!
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Text Comments (3887)
Mustard (1 year ago)
Thanks for watching! P.s. the little audio fade at the end was supposed to be intentional/joke :)
Will G (7 days ago)
dpanch_89 People die
Tanay Electronic's (1 month ago)
In india in 2019 the highest train speed is 160km/ph.
felix25ize (2 months ago)
@FennecTECH And what about a nuclear powered hyperloop coming right into the center of cities?
flash 98449 (2 months ago)
Mustard, the Tomato sauce clan wants you on the phone 😨
Ahmed Kazikian (3 months ago)
Brilliant ending... dot com.
pingpongpung (2 days ago)
Disliked for having the title and description in Dutch, but the video in English.
Plonoton (11 hours ago)
YouTube translated the title because there are Dutch subtitles...
D M (3 days ago)
9:07 no, that is not new, is a Victorian era idea, that has ben resurrected and killed multiple times. Maglev has been more successful, because Maglev actually delivers, the pressurised tubes have problems a lot of problems, thunderf00t through a lot of them, however the main problem is a terrorist attack on a pressurized tube, you don't even need to wait for a train to arrive to cause fatal damage, all you need is a bomb that causes a crack in the tube and atmospheric pressure will do the rest.
ChannelTV (3 days ago)
Hold on. So they tried to re invent the train and its track altogether before realising you could re angle the wheels and improve track curvature ???
TCG Slice (3 days ago)
next video: The Problem With Elon Musk's HyperLoop: What Happened to HyperLoop?
papa bits (4 days ago)
Mondew
Nicky h225 (4 days ago)
Occasionally America pretends to care about trains
Anderson Bicalho de Souza (5 days ago)
Tecnologias top
Anderson Bicalho de Souza (5 days ago)
Bom que o risco de acidente quase zero.
Matthew Lund (6 days ago)
Because Blaine is a pain, that's why.
Johann Bach (6 days ago)
Lmao @ the American "solution".
OOF-ER Gang (6 days ago)
Bruh I can’t wait for that 700 mph train to be built!
OOF-ER Gang (4 days ago)
James Williamson oof
James Williamson (5 days ago)
Horizintal space shuttles are that fast, only four passengers but no need to go up into orbit. Still the same pain with airport security however.
Lance Rexington (6 days ago)
America could build these train infrastructures if Democrats would stop wasting taxes on inter city ghettos and immigrants, just build infrastructure.
Brian Millar (7 days ago)
There is yet one more, called innovation through practical easy to understand, and not limit your train to only run off of just one thing to boot. Wheels to retract and roll down as needed, engines, motors as well, conventional, maglev and my form, spoiler is super cheap and easy to do unlike what has been attempted, and added air lift, and aerodynamics to lighten the load along with control to maneuver. Tracks are only to be used for added boost to speed, no need even there to remain upon... Trust me, this low tech will be combined, and I have more, much more along new tech not even discussed. Regardless, they need to stop thinking all this or that, they need to include and apply and do this thing called thinking out side of the box, but also listening to consumers, in this case riders and engineers and builders of rather then just get stuck in their slow to change ways.
James Williamson (7 days ago)
Would someone like to demonstrate how the Aerotrain takes bends?
Eduardo Escarez (5 days ago)
Probably as any other high speed train, though a large curve due to velocity.
Matthew Walker (7 days ago)
The britsh rail network is an absolute embarrassment and doesn't display any of the advancements you see across the rest of the world. High speed rail just doesn't exist here, or rather it does, but it is delayed the vast majority of the time due to complete ineptitude/lack of investment on the part of the network owners. Great video though, really enjoyed seeing the hover train prototypes, I had no idea.
Micah Lall-Trail (7 days ago)
You think the British rail network is bad? Boy, you have not seen the atrocity that is the American rail network (not counting Virgin Brightline and the freight railroads).
Sven Heidemann (7 days ago)
Take a look to the Transrapid from Germany Lathen. Greetings from Germany.
Stephen Gillie (8 days ago)
Was the 1970s global recession caused by the US gas crisis, which was a response to, among other things, American involvement with the Yom Kippur War? Could we get AlternateHistoryHub in here to speculate on what the current state of hover-rail would be if not for that political move?
Matty (8 days ago)
The train will be here for more then 100 years I bet. I it is comfortable, fast, clean, reliable and cheap.
Erik garston (8 days ago)
Soooooooo, what was the actual problem with Hover trains? Did I miss something?
Tarototh (8 days ago)
Yes at the end, the cost to replace a million miles of existing track didn't give the benefit of just incrementally improving trains to be faster or just better switched /managed. Creating massive new infrastructure plus massive new manufacturing while still needing old heavy trains for freight work.. You can't transport a million tons of corn or gas or freight on a bunch of hover trains, but a mile long freight train can handle it well. The vast majority of short distance commuting trains would also not benefit from hover trains.. Local commute trains or city trams are stopping every couple miles. The city to city high speed rail is the last place where hover trains might succeed but again.. Is it worth billions to make those few monorail raised tracks or just make an incrementally better bullet train that uses more or less the same type of track? French TGV goes 200mph instead of 300mph but it's "good enough".. That's what killed hover trains.
sol star (8 days ago)
What about the Asians?
Aa I (10 days ago)
So Supertrain 79 wasn't real life?
Benjamin Levy (10 days ago)
look what happened in incredibles 2.
David Petkovic (11 days ago)
How does it turn
Reztor (11 days ago)
Disliked because you used miles instead of kilometers
Larry Brennan (11 days ago)
The basic flaw in all these high-speed alternatives (which are essentially modern versions of the Nineteenth Century monorail) is their basic inflexibility. Most of them are designed to be on elevated structures, partly for safety and separation from trespassers, and partly because the design cannot be crossed at ground level. Elevated structures are not cheap to build. Each pylon needs a foundation; foundations require core samples of the substrata to determine if it can support the structure, then designing what has to be done to ensure that it can. Duo-rail (standard railroads, in other words) can be laid on the ground on a built-up roadbed. A track switch can be added or removed in hours, if need be. A monorail system (whether hover, rubber-tired, mag-lev, vacuum-tubed or what-have-you) simply cannot easily add a switch. And the type of switch (or turnout) again requires extensive engineering and design. Look at video of some of these systems in operation and see the complexity of their switches. To add or remove cars from such a train is also difficult. In the Thirties many early streamliners were articulated, and this flaw led to their disappearance. (Subways and metros have long used multi-car, permanently coupled sets, but these are closed systems, with known traffic patterns and a large fleet of trains; even if the cars in the sets are connected with drawbars instead of couplers, an individual car can usually be easily removed.) No matter how high-tech and "advanced" these trains seem to be, they are doomed by their basic design and engineering flaws to be curiosities and outliers in transportation, with limited application at best.
Larry Brennan (7 days ago)
@Douglas Caskey All forms of transportation are subsidized, airlines especially. Gas taxes do not even begin the cover the cost of building or maintaining roads. Trains offer a reasonable choice of travel, especially for those who can't drive or where air isn't viable. And, frankly, what's wrong with giving a choice? Air, train, bus, car -- all have their positives and negatives. A balanced system would be better.
Douglas Caskey (7 days ago)
Most trains are doomed by the fact that oil is still cheaper than electric, and/or air travel will get you there much quicker. Trains are economical to move tons of freight, they are a losing proposition to move people. High Speed Trains are an even bigger losing proposition as the cost to build and run them requires government subsidies as they are past any profitable margin for a private business. Heck, even Slamtrak barely survives WITH the government subsidizing it.
Franz Huber (11 days ago)
The big failure was that the train operators thought speed was a problem. The car took over because the schedule an destination was left to the driver. No public transport system can possibly beat the freedom of travel short distances. Not until this day. Most public transport systems in the world are used only by 10% of the mobile population. The future of all hyperloops can be seen in this video.
psteeg (7 days ago)
why would one replace the other? here in Europe, cars and public transportation coexist. Public transportation is great within large cities. Cars are great for smaller cities and travelling from one town to another. Why not have the hyperloop as an addition to public transportation? I'd be glad to exchange a 4 hour car ride for a 1 hour hyperloop
Jesus Gonzalez (12 days ago)
1:20 not half a century earlier. A *whole* century earlier. Much of the developed world had significant amounts of rail infrastructure by the 1860s...
Kenneth Sloan (12 days ago)
Hoovertrains look neat. Too bad they were not built. Wooosh!
Anthony Bardsley (14 days ago)
Worth revisiting.ahuge leap forward from sir Christopher cockrels first hover craft in 53.
陈晓帆 (14 days ago)
Love from Shanghai. We have a maglev in 2004.
museack (14 days ago)
But your totalitarian form of government is still in the dark ages, isn't it?
Brigand Boy (16 days ago)
The hover train is a great idea. The hyperloop is going to be a hilarious tragedy that I both dread and can't wait to watch news footage of.
Akalion (14 days ago)
Thinking there will even be footage
Bohemianh (18 days ago)
The issue is the wealthy won't use public transport, unless they are in an airport. The undesirables riding next to you may want your cash? your mate? or just want to beat you for the hell of it? In the USA the lower classes ruin public places and public use centers, camping in them, occupying, acting crazy etc.
P dot B/ pokemonsuper9 (19 days ago)
Did anyone else notice at 5:32 in a British section it shows the US flag?
Prometheus (19 days ago)
"The Americans, not ones to be outdone" - talking about the nation whose trains still travel as slowly as they did in 1876, and who have yet to produce a true high speed train route. Heck, given the glacial pace of railway innovation in the US, we're lucky we even have diesel trains. If the USA was as incompetent in terms of other technologies as it is with trains, we'd still be getting to work on horses and communicating using morse code. It's fucking embarrassing.
Micah Lall-Trail (7 days ago)
@museack Well, we do need that mass transportation in the United States; look at how much highway traffic we have!
museack (14 days ago)
We don't NEED that type of mass transportation in the U.S. That's WHY we don't have it. Those of you in the "European theatre" of operations have such small countries that railed type of mass transportation makes sense for the peasants there.
logno melchor ambas (20 days ago)
Let the japanese do it and the french will stick to there cooking
museack (14 days ago)
"Their"
HarbingerDawn (20 days ago)
That stab at Hyperloop at the end, absolutely 10/10
hvymtal (16 days ago)
DuNkEd
shinukism shnuck (21 days ago)
it would make sense to have the whole track be a solar panel that makes the trains run for free, super futuristic, green, then we could travel by train instead of planes, sure it would take ages but if you don't have to change train it would be ok.
museack (14 days ago)
Nice pipe dream but where you gonna get the continuous sunshine in countries that are covered in clouds most of the time....Ha??????
Think (21 days ago)
@9:18, let me guess, your cat rubbed up against your gain knob.
Mos Kito (22 days ago)
Thumbs down for not using the metric system
Akalion (14 days ago)
+Mos Kito No one gives a fuck what you want. Most viewers are Americans so deal with it.
Mos Kito (21 days ago)
@Me Or You NOPE!!! i want to HEAR it and not reading it while listening
Me Or You (21 days ago)
Check top left corner
Will G (22 days ago)
Cities in Europe differ from cities in the USA in one fundamental way that makes train travel between cities in the US much less practical than in Europe. Cities in Europe are the INVERSE of most cities in the USA. In the USA the slums are in the inner cities while in Europe they are in the suburbs. Many people in the USA that travel by air between cities never actually have a destination within their destination city but rather on the outskirts of it. Some business travelers must travel to the financial district of their destination city, but many businesses travelers don’t. Many finance and advertising businesses are also locating outside of American cities these days as the cities are just too expensive due to taxes and other costs . There will come a point in time when American cities will collapse financially.
museack (14 days ago)
And we've already reached the point where stupid idealistic concepts have come & gone & we are now in the mode of reality.
Paul BERDAH (23 days ago)
Innovation build in a frugal funding project is the Spanish speed train AVE from RENFE. Study it in detail and you will discover that details matter and all together make a big difference specially at contry scale 300km/h development.
Lorraine Malele (24 days ago)
Why can't we all use SI units? Just saying!
museack (14 days ago)
Go ahead. No one is stopping you. Oh, you mean why can't YOU control the world into doing so? Ain't gonna happen anytime soon.
Greg Wallace (24 days ago)
The Vacuum tube train is just another Pipe Dream.....!
Robert Burnett (26 days ago)
And no airport hours long messes. I dread air travel. I took the high speed from Madrid to Seville. A few minutes to get on and off. Also, a very smooth ride.
museack (14 days ago)
Europe is a socio-political mess & always has been. All they have to do is develop 1 innovative idea that's NOT widespread across their country's & anus lickers like you are seduced into believing that they're saving the world with their 1 idea.
Bruneau François (26 days ago)
Human brain doesn't like too quick changes and loves low technical solutions understables by everyone. Jean Bertin was too early for his time, killed by lobbies which belonged to the past like iron rails industries. He was a nice man.
Marauder Мародер (27 days ago)
In USA in small ports & in rural areas steam trains are still heavily in use
Aggelos Adam (27 days ago)
I LOVE FAST TRAINS
DavidRGD (28 days ago)
Europe and Britain: *Built high speed trains* Americans: *Testing Acela Express in 2000*
Just Some Guy Ok (28 days ago)
The US has a much lower population density than Europe. So more distance between fewer people. Aircraft are still more economical here.
Jay H (29 days ago)
This is bull crap not in my 70s changing history right here folks
Jay H (27 days ago)
Just Some Guy Ok history and technology ain't what you fink
Just Some Guy Ok (28 days ago)
What?
C Purchase (29 days ago)
Maglev. That is all
Prozrenie (29 days ago)
Delete this video trumpeting a STOOPID idea!
Charlie Angkor (30 days ago)
if your train 🚊 needs parachutes to brake you know your train 🚂 is fast
slpip (30 days ago)
Hovertrain is not practical and environmental safe. With an aero turbine engine, why not take an airplane can travel double the speed.
Mark W (1 month ago)
maybe we should build a maglev network in all the cheaper areas that are less populated to begin with. Easier to find potential track routes that way and you could also supply tons of jobs
Ed Kummel (1 month ago)
I think the real failure of Hovertrains is the French's need to overengineer everything to the point of obscene complication. Have you ever tried to work on a Citroen vehicle? It doesn't make sense....mechanically it works, but it shouldn't!
Life of Bassman (1 month ago)
Go musk and the hyperloop
MJB Games (1 month ago)
Congratulations... Humans Just Killed Conventional Trains.
MJB Games (1 month ago)
Let’s Pray For Hyperloop
Cedric Ye (1 month ago)
"The americans, at least for the time being, stuck with cars." *FEEL THE BURN*
J S (1 month ago)
...and jets
Foxima Centauri (1 month ago)
Hover trains or hyperloops will come sooner or later. Conventional railways are almost at their max. Capacity. And don't come with "it would be cheaper to build better conventional railways". my country has a budget of several trillion euros every year, yet they aren't able to let _one_ train arrive in time. Hundreds of Kilometers of tracks aren't in working condition at the moment. But it costs really fuckin much to maintain that shitty system.
MrBearDT (1 month ago)
Anyone here from Massachusetts watching as they're stuck with the MBTA? LOL
Gene Kelly (1 month ago)
Yep-instead of arrival schedules, they announce the derailments, breakdowns for the day.
Adamah Mashiach (1 month ago)
You tried to make the Bullet Train sound like Japan wasn't utterly killing the Train Game and still is by every feat, hitting every checkmark with 100%... TO THIS DAY
wvadam (1 month ago)
This video is about the hover train. If he wasn't glorifying the bullet train enough it is because it wasn't the focus of his video. There are plenty of others that will go in depth about the bullet train.
MR GHOSTER (1 month ago)
Human's DO NOT like change. Any of these ideas had the been less fantastic in appearance and more conventional in appearance may have stood a better chance? but no they have to look like rockets or planes, then you have the impracticality of points ans switching? what about Good's and freight traffic, and shunting. it's all very well moving a few RICH people about but what about commerce and product delivery. Oh! they would say that can stay the same, in which case you would need two sytems less cost effective and overly expensive, when a system that serves both passenger and good's can use the same system? Nah1 these thing's never catch on, not because they are not good idea's but they are always so far from what people know and trust to be instantly accepted? Just an example instead of some rocket body work why not a conventional corridor coach with instead of wheels a hover pack where the wheels once were? People may more likely gone for that because it looks conventional and safe, they trust the appearance?
DRGH DRGH (22 days ago)
Humans love change!!
Brick Life (1 month ago)
it looks ugly tho
beetle J (1 month ago)
tell that to seimens, bechtell, rand corporation etc that do work on Deep Under Ground black sites
Antoine (1 month ago)
When are we talking about trains then ?
DΔRIO MΔRCHESI (1 month ago)
Does anyone know what design program Mustard is using to produce these super smooth graphics?
ADHeroD (1 month ago)
basically UK and France were leading in the technology and america was lagging behind and because america forced uk and france into the vietnam war funding had to be heavily cut till it was cancelled makes sense if america isnt the one with the cutting edge technology it gets cancelled worldwide... isnt that right concord?
Qwasey Wearycooldoc Inc. (1 month ago)
OoOoOoOoOoOr YoU cOuLd UsE mAgNeTs YoU eTeRnAl ViCtOrIaN vItAmIn DeFiCiEnT dUmBaSsEs
EZclapz boi (1 month ago)
they could create hydrogen powered trains, cars and planes since when ignited it creates pressure and that pressure could be used as an accelerant for vehicles it might not necessarily be fast but it could still be a huge environmentonal improvement from fossil fuels like kerosene and diesel
TheLiasas (1 month ago)
I dont get how maglev didn't ever make it to be the norm. Everything about it seems just suoerior
Jakob Lust (1 month ago)
@wvadam That literally has almost nothing to do with what I said. And you need quite a few 737's to meet the capacity of a well designed HSL.
wvadam (1 month ago)
@Jakob Lust it costs billions of dollars to do the same thing a few 737's can do. California scrapped their high speed rail because it's cost grew to $77 billion just to connect L.A. to San Francisco. Just 2 major cities fairly close together. Imagine what the whole country would cost.
Jakob Lust (1 month ago)
The cost of the infrastructure.
D Stuart (1 month ago)
These are fabulous--thanks so much!!!!!!!
D Stuart (1 month ago)
I like SLOW travel--my bike. The TGV is nice though.
Lance Rexington (6 days ago)
D Stuart golf carts
Jake Brennan (1 month ago)
The most underrated part of the whole video is at 0:10
Ace Max (1 month ago)
The other key factor would be Monopoly infrastructures like the railways and the airline's not wanting competition and using lobbying and politicians to make it happen by putting them on the payroll to stop these types of programs. Humanity O.o
Mallory SF (1 month ago)
They might lead the new technologies instead of stopping them. Aren't the railway companies the ones who should create new types of rail transport? As for airplanes - that's the real cause. It's easier to "hover" way above the ground than connected to a concrete rail. It's the unnecessary risk. Hovertrain is about the same as putting airplanes into a tube or on a rail. It's pointless. Pilots do just fine taking off and landing. For shorter distances we already have rails and roads. The cost of new transport types goes up in square compared to efficiency. Meaning, you already have a train that reaches 180 km\h, the ticket is $2\km. You build a maglev that's terribly costly, it might average 220 km\h and cost $50\km. You take 25 min to get to work, now it's $48 more for 20 min time? Yes, it can reach 600 km\h. But it takes time. Acceleration mustn't turn passengers into cosmonauts. Comfortable acceleration is around existing trains. So to maximize the speed you need less stops, since they make the top speed irrelevant, so it becomes a transport for long distances. And that brings us back to airplanes. If you need to reach another city at 600 km\h, why not take a plane at 900 km\h? It doesn't need a 1000 km long magnetic cushion, it flies freely. So it's not monopoly, it's efficiency. Common sense.
Wumpis (1 month ago)
It was called a the Terrain Plane! *or Train for short*
UnrealVideoDuke (1 month ago)
Forgot to mention that the TUBE/tunnel was coined "HYPERLOOP" which can easily kill the occupants if a failure happens and even tested with RAILS!... And Americans have adopted MONORAIL in small areas and Subway Rails in Metropolises.
Kaio Zuza (1 month ago)
ALÁ O AEROTREM DO LEVY FIDELIX 0:18
The Snookman (1 month ago)
Why are u talking like that?
ROL G Songwriter - No ads in here ! (1 month ago)
What's the point of background music ?
Brendan McGlinchey (1 month ago)
In the USA alone there are over 5000 patents that have been deemed " illegal and contrary to National Security " .The system is such as to outlaw progress and leave us in the conventional trap of relying on fundamental fossil fuels and other ageing systems . Currently we are about 1200 years behind ourselves so that the oil companies ( a la Middle Eastern monopolies and the Bush mob ) can continue to fleece the ordinary Joe for his hard earned cash .Wake up sheeple .
Wide World of Trains (1 month ago)
i HAVE VIDEOS OF fAST TRAINS CHECK IT OUT
James Neilson Graham (1 month ago)
High speed trains like the TGV are scary. At 200mph (approximately 300kph) the forces applied to the track are huge and the tolerances are tight. I suspect that it would only take a badly maintained carriage or coupling to destabilise the system. Some years ago a test TGV came off the track in France. The report blamed driver error, but then it would, wouldn't it . . .
Hadley Scott McIntyre (1 month ago)
260 ground transpo!
Ian Clotworthy (1 month ago)
Actually, for high speed rail the French had to build a new rail network with fewer curves and no level crossings. The infrastructure wasn't there.
Hylomane (1 month ago)
The Americans mostly stuck ~with cars~ in traffic. The greatest country on earth my ass.
Zom Bee Nature (1 month ago)
Going by train anywhere is expensive compared to bus or plane
Sauga Verse (1 month ago)
One problem with trains is that it takes alot of staff to operate them. That alone adds to the cost. But will all public transportation, if more people used trains, then the cost would go down.
Andy Appan (1 month ago)
600 kmph low carbon, no carbon mud track train
Ushio01 (1 month ago)
Building a rail network in the sparsely populated world of the 19th century turned out to be much easier than the densely populated post 1945 world.
surge9000 (1 month ago)
No, I've never heard of "hovertrains" because theyre called Maglev.
Robert Bell (1 month ago)
Hi speed rail in general is just not economically feasible. If it were, private investment would be on board. However, people who actually have to earn money know that it won't work. Air travel for very long distances and car travel for shorter distances has proven to be more efficient and economical.
Maury Markowitz (1 month ago)
The main problem with the hovertrain concept is only touched on in the video. The large model of the Bertin design had a turbine to power the lift engines, at about 400 hp (although a production model would have a larger lift engine). With 80 passengers, that's 5 hp per passenger. That's comparable to a car at cruise *even when it's not moving*. You still have to power it forward as well, where it has similar drag to any other vehicle. In energy terms the system is simply not efficient. In contrast, the energy needed to lift a maglev of the same size is only a few hp.
Public Public (1 month ago)
They require expensive track systems. So they always fail...
DeHerg (1 month ago)
That poses the question: could we create a train car to magnetically levitate on regular tracks (temporarily magnetizing them) and still be stable and energy efficient?
Torrin Wilkins (1 month ago)
I don't actually agree with the point about maglev trains not revolutionising railways. Japan is now building a maglev line which will eventually stretch from Tokyo to Osaka. It took a long time to take off but I feel after Japan does it, the rest of the world will start to follow. The issue is incremental improvements only go so far when you are dealing with the same basic idea of wheels on a track
Harry Kowalsky (1 month ago)
The camera shake is irritating...
Andrew Loera (1 month ago)
"I used some sexual terms in this video like friction, rolling resistance and magnetism" lolol WTF
GEORGES-PAUL GRASSET-GOTHON (1 month ago)
Hi Mustard, Here are some complementary information : - The US PTACV Project used French "Aerotrain" Air Cushions and French Linear Induction Motor. - Aerotrain air cushion efficiency was 18 kW Per T... PTACV further assessment of French air cushions could have achieved 12 kW per T. - French Aerotrain I-80 could have been doubled in passengers capacity (I-160) with minorl motor changes (except for air cushions)... Overall energy efficiency would have been quite similar to first generation TGV and FAR BETTER than any of the short-haul Airbus A 320 or Boeing 737... - French linear induction motor had a very bad mechanical efficiency and produced more heat than actual movement ( about 15% efficiency)... Talking incremental innovation, French government granted Aerotrain remaining funds to the development of a better LIM... In 1984/1985 "Guimbal" Motor was ready with a mechanical efficiency raised up to... 80% and later 90%+.... But... We were supposed to resume Aerotrain program with that new motor... ... And Aerotrain burnt in 1992... - It is often said that Aerotrain was killed by lobbies associated to the TGV Programm...... Now, think... SNCF was part of the Aérotrain program.... Another industry would have suffered from Aerotrain program.... : AIRBUS... - Let's talk about costs.... A Turboprop Aerotrai on a double tracks infrastructure is 8 Million EUR double tracks... If electric Linear motor Aerotrain... 12 Million EUR double tracks... TGV..... 20 Million EUR Double tracks.... Maglev ?.... Transrapid... About 35 to 40 Million Euro.... Japanese Maglev ?.... About 80 Million Euro per km of double tracks..... in addition, Aerotrain tracks required extremely less maintenance than ANY contact/rail system. - The last attempt to revive Aerotrain was the TACV Project : www.tacvproject.com - Even today market for an Aerotrain / Hovertrain technology is just HUGE.... and no need to vacuum pipe !!! :-) Best regards
David Rodgers (1 month ago)
A lose of air a 260 mph would of been a mess ... Cool train..
Xinless Vice (1 month ago)
America has a high speed train by Amtrak called Acela, though it doesn't go as fast as in Europe not does it go full speed on all sections, especially north of nyc
chucku00 (1 month ago)
Acela = castrated TGV