Hypersonic

Hypersonic speeds are around 6,000 to 8,000 km/h and are the proposed speeds of vactrains.

Aircraft flying at these speeds could have a cruising speed of Mach 5, which is more than 7 times faster than typical passenger jets and 5 times the speed of sound. Hypersonic planes can fly from New York to California in 30 minutes. And they can fly from New York to London in under 4 hours.

Their advantages are numerous. They can be lighter than Boeing 747s and utilize conventional runways. Additionally, they would make moderate take-off noise. The only disadvantage is that they would lack windows because windows would be too heavy for this type of aircraft. One solution to this problem could be the installation of flat-screen displays that show footage of the world outside.