United Airlines is ready for the Concorde 2.0, but this time, Togel Hongkong it wants supersonic flight to stick around for good. This Thursday, United and Denver-based startup Boom Supersonic announced the company will purchase 15 new supersonic aircraft. About 40 years after the Concorde, it looks like incredibly fast air travel is ready for a comeback.

This time, Boom promises major changes to make supersonic air travel sustainable and permanent. The company said its Overture aircraft is designed to be carbon-neutral from Day 1. The plan is to run the aircraft on 100% sustainable aviation fuel, which will take the plane to speeds of Mach 1.7 and heights of 60,000 feet in the air. With specs like that, travel times condense dramatically.

The company estimates a flight aboard the Boom Overture from Newark to London will take just three-and-a-half hours. San Francisco to Tokyo happens in an estimated six hours. Overall, the company said its plane can shave off half the flying time for 500 routes traveled around the world. 

Also, while Concorde <a website not known for a spacious cabin (despite the generous pours of onboard champagne), the Overture’s promises tons of space for 65 to 88 passengers, contactless technology and plenty of onboard entertainment. In other words, it’s an all first-class aircraft.