Boom Supersonic, the company building supersonic planes, is developing Symphony, a new propulsion system designed and optimized for its Overture supersonic airliner. Boom will be teaming with three industry leaders to develop Symphony including Florida Turbine Technologies (FTT) for engine design, GE Additive for additive technology design consulting, and StandardAero for maintenance.

Symphony will be a bespoke design leveraging proven technologies and materials to achieve optimal supersonic performance and efficiency. Overture’s new propulsion system will operate at net zero carbon and meet Chapter 14 noise levels. When compared to derivative approaches, Symphony is expected to deliver a 25 percent increase in time on wing and significantly lower engine maintenance costs, reducing overall airplane operating costs for airline customers by 10 percent.

“Developing a supersonic engine specifically for Overture offers by far the best value proposition for our customers,” said Blake Scholl, Founder and CEO of Boom Supersonic. “Through the Symphony program, 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.”

Symphony will be a medium-bypass turbofan engine with the same basic engine architecture that currently powers all modern commercial aircraft. Unlike subsonic turbofans, this new propulsion system will include an axisymmetric supersonic intake, a variable-geometry low-noise exhaust nozzle, and a passively cooled high-pressure turbine.

Boom has selected Florida Turbine Technologies, a business unit of Kratos Defense & Security Solutions, Inc., as its engine design team. GE Additive will collaborate on the Symphony program. Symphony will benefit from GE Additive’s proven track record of designing additively manufactured engine components — enabling more streamlined development, reduced weight, and improved fuel efficiency. Additionally, StandardAero, one of the aerospace industry’s largest independent maintenance, repair, and overhaul providers, will ensure that Symphony is designed for maintainability.

Engine design features will include Architecture: twin-spool, medium-bypass turbofan engine, no afterburner; Thrust: 35,000 lbs at takeoff; Fuel: optimized for 100 percent sustainable aviation fuel; Single-stage fan designed for quiet operation; Passively cooled high-pressure turbine; Additive manufacturing for low weight, low part count, and reduced assembly costs; as well as Certification: compliant with FAA and EASA Part 33 requirements.

For more information, contact Aubrey Scanlan at This email address is being protected from spambots. You need JavaScript enabled to view it..