Boom Supersonic Commits to Vertical Integration, Producing 193 Engine Parts In-House for Symphony Program

Boom Supersonic is significantly advancing its proprietary Symphony engine program for the Overture supersonic airliner, emphasizing vertical integration by manufacturing key components in-house. This strategic shift aims to accelerate development and optimize the engine for sustained supersonic flight. The company recently installed a Mazak Quick Turn 450MY lathe at its R&D Supercenter, marking the official start of in-house production for demanding engine components.

Blake Scholl, founder and CEO of Boom Supersonic, underscored this commitment in a recent social media post, stating, > "Vertical integration is the way. @boomaero not just building our own engine—building our own engine parts in our own engine factory." This move follows the company's decision to develop its own engine after major manufacturers declined to create a new design for Overture.

The Symphony engine, a 35,000-pound-thrust medium-bypass turbofan, is designed to achieve Mach 1.7 supercruise and operate on sustainable aviation fuel. Boom is currently utilizing additive manufacturing (3D printing) to produce 193 functional metallic parts for the engine's "sprint core" test article, including high-pressure turbine blades, vanes, and seals. While these 3D-printed components are for testing and validation, they are crucial for refining the engine's design and accelerating its development cycle.

Boom has established key partnerships for the Symphony program, collaborating with Florida Turbine Technologies (FTT) for engine design, StandardAero for assembly and maintenance, and GE Additive for consulting on additive manufacturing. ATI is also contributing advanced high-temperature materials for critical components. Full-scale core tests are slated to begin in early 2026, with rig tests for the combustor section already underway.

A dedicated test facility at the Colorado Air and Space Port will support core testing throughout 2025, allowing Boom to gather critical data for engineering and manufacturing refinements. The company's goal is for Overture to achieve its first flight in 2026, with commercial service projected to commence in 2029. This vertical integration strategy is expected to provide greater control over the engine's performance, cost, and maintainability, enabling features like "Boomless Cruise" to mitigate sonic booms.