Boom Supersonic said it has designed a new propulsion system to power its Overture supersonic jet, which it says will be the world's fastest airliner when it launches in 2027.
The propulsion system, which it calls Symphony, would be a "bespoke design leveraging proven technologies and materials", according to Boom, which added the system would "operate at net zero carbon" and would meet noise level requirements under US law.
The system would also reduce engine maintenance costs and mean a 25% increase in "on wing" time, said Boom.
"We can provide our customers with an economically and environmentally sustainable supersonic airplane — a combination unattainable with the current constraints of derivative engines and industry norms", according Blake Scholl, founder and chief executive of Boom Supersonic.
"United and Boom share a passion for making the world dramatically more accessible through sustainable supersonic travel," said Mike Leskinen, president, United Airlines Ventures.
Boom said it selected Florida Turbine Technologies, a business unit of Kratos Defense & Security Solutions, as its engine design team, adding that GE Additive is to collaborate, as will StandardAero, which it said is "one of the aerospace industry's largest independent maintenance, repair, and overhaul (MRO) providers".
Symphony is to be a medium-bypass turbofan engine and will come with "the same basic engine architecture that currently powers all modern commercial aircraft", Boom said.
But, it added, it would stand out by including a "Boom-designed axisymmetric supersonic intake, a variable-geometry low-noise exhaust nozzle, and a passively cooled high-pressure turbine".