American Airlines places order for 20 supersonic passenger jets

The startup also claims the supersonic jets will be "net zero carbon" and run on 100% sustainable aviation fuel.

American Airlines has announced that they have agreed to purchase 20 supersonic jets, with the option of an additional 40 jets from Boom Supersonic - a Colorado-based startup.

While financial details of the agreement haven't been disclosed, American Airlines did state that the deposit on the initial 20 supersonic aircraft is non-refundable. However, the agreement is subject to change based on Boom Supersonic's ability to meet industry standards for operation, performance & safety and any other customary conditions before delivery of the Overtures.

According to Boom Supersonic, their Overture jets are expected to be rolled out in 2025 and enter commercial service sometime by the end of the decade. The Overture supersonic jet will be able to carry 65 to 80 passengers at speeds of up to Mach 1.7 - twice that of the current fastest commercial aircraft. The supersonic jet, once in operation, will have a cruising altitude of 60,000 feet and a range of 4,250 nautical miles.

Apart from American Airlines, Boom Supersonic also has an order for 15 Overtures from United Airlines. The company recently raised $270 million in funding and fielded pre-orders from Virgin Group and Japan Airlines. The startup also claims the supersonic jets will be "net zero carbon" and run on 100% sustainable aviation fuel.