South Korea Developing 'Near-Supersonic' Train Similar To Hyperloop (huffingtonpost.co.uk)

The South Korean government plans to unveil a high-speed train that can travel at near-supersonic speeds capable of cutting a five hour journey to just 30 minutes. It's reminiscent of the Hyperloop, a proposed mode of passenger and freight transportation that propels a pod-like vehicle through a near-vacuum tube at more than airline speed. Huffington Post UK reports: According to the Korea Railroad Research Institute, it plans to unveil a "hyper tube" format train in the "not too distant" future. Speaking to the South China Morning Post, the government-owned organization said: "We hope to create an ultra-fast train, which will travel inside a state-of-the-art low-pressure tube at lightning speeds, in the not-too-distant future. To that end, we will cooperate with associated institutes as well as Hanyang University to check the viability of various related technologies called the hyper-tube format over the next three years." While this sounds very similar to the low-pressure concept designed initially by Tesla founder Elon Musk it seems as though the KRRI wants to go even further and create a system that will leave Hyperloop looking like a Hornby set. By throwing all their resources at the project, South Korea is hoping to skip past maglev, a still-new propulsion system that uses electromagnets to actually levitate trains above the air. While this removes some of the friction that comes with using conventional wheels, it still doesn't remove the brick wall of friction that is air itself. By building a low-pressure tube however and placing the train inside it you can effectively create a train that could travel at eye-watering speeds.

Comments

Re:Use that low pressure air

[ShanghaiBill]

The train could be designed to get some lift from that low-pressure air, taking some of the load off the wheels.

That is exactly how Hyperloop works. It uses maglev at low speed, and then uses Air Bearings as it speeds up. There are no wheels.

Korea Rail is big on promises but results vary

[RubberDogBone]

Various Korean rail companies have supplied trains around the world and nobody doubts they make a lot of rolling stock.

But many of the Korean-built mass transit and passenger trains seem to suffer extreme defects and lawsuits. Boston MBTA, Philadelphia SEPTA and California Metrolink are all suing Hyundai Rotem over different issues with their rail vehicles. Rail lines in Australia are also engaged in lawsuits.

Now, problems and disagreements happen with rail. But there is a big pattern of Korean rail suppliers overpromising what they can do, underbidding competitors, and then either failing to deliver on time or delivering equipment with massive faults and defects.

It seems to be mainly a case of trying to bag contracts before Chinese or Japanese suppliers can get them, even if the Korean companies can't really deliver. This is what happens when all these municipal rail systems have very star-eyed visions of what they want and pocket change to pay for it, so they go for the biggest dreamer and low bidder all at once with a very optimistic timetable. And it just can't work that way.

So here is KRRI promising the unproven and yet to be invented faster than anyone else AND for the best price. Yeah goody for you. Somebody will fund it.

Disclaimer: Aside from the US, there is no nation I love more than South Korea. It's in my blood. I proudly own a Korean car and go nuts over Korean pop culture. But there have been just so many rail issues. It really sullies the Korean reputation.