You’ve probably heard of hyperloop in some way or another at this point. Aiming to bet the future of transportation, hyperloop “pods” will travel in vacuum tubes at upwards of 700mph. This is achievable due to the absence of air in a vacuum, which allows for zero drag/friction.
Just this pas day, a startup called ‘Hyperloop One’ have built and successfully completed the first full-scale test for the new transportation system. Executed in the Las Vegas desert, the company accelerated a small sled vehicle down a rail track to nearly 100 mph in 1 second. Using state of the art hyperloop propulsion technology, this may not look particularly impressive, but it’s a very big step in the right direction.
— CNBC (@CNBC) May 11, 2016
Through the use of a linear-electric motor (electro magnetic propulsion) ‘Hyperloop One’ engineers ran what they call a POAT (propulsion open air test). Propelling their test sled from 0 to 100 mph in less than one second, the forces generated are close to 2.5Gs. The same electro magnetic motor propelling the sled in the test can theoretically be used to push a sled at speeds of nearly 700 mph in a vacuum tube environment.
Unlike typical motors, this one has no moving parts. Giegel described the motors as “blades” and what you might get if you took a typical electric motor, cut it down the seam and unrolled it. When powered, these roughly 2-feet tall by 6-inch wide blades create electromagnetic energy that reacts with the pod and pushes it along. – Mashable
With these motors being in a near-vacuum environment the motors would only need to be installed on 5 to 10 percent of the track, about every 50 miles. This means that unlike highspeed rails that use similar engines, the hyperloop will be much for efficient as it’s in a zero drag environment.