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The Improbable Story of the 184 MPH Jet Train
MatthewVD writes Almost half a century ago, New York Central Railroad engineer Don Wetzel and his team bolted two J47-19 jet engines, throttled up the engines and tore down a length of track from Butler, Indiana to Stryker, Ohio at almost 184 mph. Today, the M-497 still holds the record for America's fastest train. This is the story of how it happened.
Keep in mind, the majority of the negatives you're attributing to malice weren't even a concern to the majority of scientists at the time.
Meanwhile, the Japanese Shinkansen (Bullet Train) started regular commercial service a full two years earlier in 1964. Shinkansen now routinely exceed 200mph, although the first ones (Series 0) ran at 137mph.
For those that have never used the Shinkansen, they are truly awesome. They leave and arrive to the scheduled minute. There is no TSA bullshit, so you can arrive at the station a few minutes before departure. There's loads of leg room. For any journey less than around 3-4 hours there is no point thinking about air travel.
Amusingly, the Shinkansen actually makes Japanese domestic airports more efficient as well. After all, the more crap a traveller has to deal with at the airport, the more likely they are to take the train. Thus, there is no TSA bullshit at Japanese domestic airports and you can arrive 10 minutes before your flight and easily make boarding.
That jet-powered locomotive was neverintended as a useful means of propulsion. It was just to test track-train dynamics at higher speed. Not much was done with the info, since Amtrak wasn't into high speed rail.
The next big advances in high speed rail were Japan's Tokaido line and San Francisco's BART, both around 1970. The original Tokaido trains had conventional wheel arrangements, and required a very good and very high maintenance roadbed. The SF BART system had the first trains with an active suspension, with each car body supported on a triangle of three air bags controlled by electronic controls. This allowed a higher body height at higher speed, allowing more wheel travel and a softer suspension. Also, all wheels were powered, as is normal in transit operations.
The French TGV brought both of those ideas together - high speed plus active suspension with more suspension travel, with all wheels powered. This allowed high speed trains without excessive track wear. (That's a big problem with high speed rail. A French test in 1955 reached 331 km/h, but damaged the track seriously in only one run. There were serious doubts for years whether steel wheel on steel rail could ever go that fast in routine operation.)
As with cars, there's been more than enough power to go fast for decades. Wheel and suspension issues are what limit speed.
And then Amtrak took over all passenger rail-travel, and has never shown a profit since
Neither has the interstate system. And AMTRACK has to compete with that *massively* subsized road system.
SJW n. One who posts facts.
Jets might be faster for the actual distance, but considering the whole time of travel, they aren't really faster. Boarding a train takes 5 mins. boarding a plane with all the security checks takes 1 hour. In this 55 mins, a bullet train of 150 mph goes 100 miles (and that's including acceleration). And then you have to go to the airport, while the train station is downtown, this takes another 1 hrs to get there, and 1 hrs to go from the airport downtown at your destination. In this time, the train has covered another 200 miles. Yes, the plane may take for the 400 mls flight only 1 hour, but the whole trip takes you 4 hrs, and in this time, the train makes it also to the destination.