What are the key takeaways from this This Week in Startups episode?

Key insights include: **Boomless Flight Technology:** Boom solves sonic boom using ray tracing algorithms from computer graphics to calculate flight trajectories based on atmospheric temperature gradients. Flying at sufficient altitude with speed-controlled boom angles allows sound waves to refract upward, never reaching ground. Maximum quiet speeds range from Mach 1.05 to 1.3 depending on weather conditions, enabling 50% faster travel than current jets without ground noise.; **In-House Engine Development:** Boom builds Symphony engines internally using vertical integration and three-d printing to achieve 10x cost reduction and 50% time savings compared to traditional aerospace. The slacker index metric measures productivity as wait time divided by build time. Buying a million-dollar machine enables 24-hour turbine blade printing versus six-month traditional procurement at similar cost.; **Product Market Fit Validation:** Boom secured firm orders with deposits from United, American, and Japan Airlines totaling five and a half years of production capacity before building the commercial aircraft. This demonstrates specific demand for their exact specifications: 4,000 nautical mile range, 62 seats, business class economics at $5,000 round trip transatlantic versus Concorde's $20,000 tickets with inferior comfort.

What did Blake Scholl From Boom discuss on This Week in Startups?

Blake Scholl from Boom Supersonic discusses breaking the sound barrier with their XB-1 demonstrator aircraft, developing the Symphony engine in-house, solving sonic boom through software algorithms, and targeting 2029-2030 for commercial supersonic passenger flights at business class prices. Key topics include: **Boomless Flight Technology:** Boom solves sonic boom using ray tracing algorithms from computer graphics to calculate flight trajectories based on atmospheric temperature gradients. Flying at sufficient altitude with speed-controlled boom angles allows sound waves to refract upward, never reaching ground. Maximum quiet speeds range from Mach 1.05 to 1.3 depending on weather conditions, enabling 50% faster travel than current jets without ground noise.; **In-House Engine Development:** Boom builds Symphony engines internally using vertical integration and three-d printing to achieve 10x cost reduction and 50% time savings compared to traditional aerospace. The slacker index metric measures productivity as wait time divided by build time. Buying a million-dollar machine enables 24-hour turbine blade printing versus six-month traditional procurement at similar cost..

How long is this episode of This Week in Startups?

This episode is 65 minutes long. SignalCast provides an AI-generated summary so you can get the key insights in about 3 minutes.

This Week in Startups

Breaking the Sound Barrier with Blake Scholl from Boom Supersonic | E2186

September 30, 2025

65 min episode · 2 min read

Blake Scholl From Boom

Episode

65 min

Read time

2 min

Topics

Productivity, Remote Work, Fundraising & VC

AI-Generated Summary

Published Dec 25, 2025

Key Takeaways

✓Boomless Flight Technology: Boom solves sonic boom using ray tracing algorithms from computer graphics to calculate flight trajectories based on atmospheric temperature gradients. Flying at sufficient altitude with speed-controlled boom angles allows sound waves to refract upward, never reaching ground. Maximum quiet speeds range from Mach 1.05 to 1.3 depending on weather conditions, enabling 50% faster travel than current jets without ground noise.
✓In-House Engine Development: Boom builds Symphony engines internally using vertical integration and three-d printing to achieve 10x cost reduction and 50% time savings compared to traditional aerospace. The slacker index metric measures productivity as wait time divided by build time. Buying a million-dollar machine enables 24-hour turbine blade printing versus six-month traditional procurement at similar cost.
✓Product Market Fit Validation: Boom secured firm orders with deposits from United, American, and Japan Airlines totaling five and a half years of production capacity before building the commercial aircraft. This demonstrates specific demand for their exact specifications: 4,000 nautical mile range, 62 seats, business class economics at $5,000 round trip transatlantic versus Concorde's $20,000 tickets with inferior comfort.
✓Hardware Iteration Speed: Boom embeds software engineers with hardware teams to automate design changes through their Make Boom platform. Updating one airplane component triggers automatic redesign of dependent systems via push-button automation. This agile hardware development approach mirrors software sprints, reducing iteration costs and enabling faster product development cycles than traditional aerospace twenty-one year product stagnation.
✓Starlink Revenue Strategy: Boom developed an undisclosed hardware product launching before the supersonic airliner with over one billion dollars in orders. This Starlink-equivalent strategy provides earlier revenue to finance the longer development timeline of Overture, similar to how SpaceX funded Falcon 9 development through satellite internet services. The product ships from their Denver factory using the same core supersonic technology.

What It Covers

Blake Scholl from Boom Supersonic discusses breaking the sound barrier with their XB-1 demonstrator aircraft, developing the Symphony engine in-house, solving sonic boom through software algorithms, and targeting 2029-2030 for commercial supersonic passenger flights at business class prices.

Key Questions Answered

•Boomless Flight Technology: Boom solves sonic boom using ray tracing algorithms from computer graphics to calculate flight trajectories based on atmospheric temperature gradients. Flying at sufficient altitude with speed-controlled boom angles allows sound waves to refract upward, never reaching ground. Maximum quiet speeds range from Mach 1.05 to 1.3 depending on weather conditions, enabling 50% faster travel than current jets without ground noise.
•In-House Engine Development: Boom builds Symphony engines internally using vertical integration and three-d printing to achieve 10x cost reduction and 50% time savings compared to traditional aerospace. The slacker index metric measures productivity as wait time divided by build time. Buying a million-dollar machine enables 24-hour turbine blade printing versus six-month traditional procurement at similar cost.
•Product Market Fit Validation: Boom secured firm orders with deposits from United, American, and Japan Airlines totaling five and a half years of production capacity before building the commercial aircraft. This demonstrates specific demand for their exact specifications: 4,000 nautical mile range, 62 seats, business class economics at $5,000 round trip transatlantic versus Concorde's $20,000 tickets with inferior comfort.
•Hardware Iteration Speed: Boom embeds software engineers with hardware teams to automate design changes through their Make Boom platform. Updating one airplane component triggers automatic redesign of dependent systems via push-button automation. This agile hardware development approach mirrors software sprints, reducing iteration costs and enabling faster product development cycles than traditional aerospace twenty-one year product stagnation.
•Starlink Revenue Strategy: Boom developed an undisclosed hardware product launching before the supersonic airliner with over one billion dollars in orders. This Starlink-equivalent strategy provides earlier revenue to finance the longer development timeline of Overture, similar to how SpaceX funded Falcon 9 development through satellite internet services. The product ships from their Denver factory using the same core supersonic technology.

Notable Moment

Boom stopped selling Overture pre-orders despite interest from Lufthansa and British Airways because five and a half years of production capacity is already sold. Scholl argues every airline will inevitably need supersonic capability once competitors offer three and a half hour transatlantic flights, making additional order book validation unnecessary.

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