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Boom Supersonic Tests Symphony Engine at Colorado Facility

Boom Supersonic leverages Colorado’s aerospace infrastructure to test its SAF-compatible Symphony engine, collaborating with industry leaders for 2025 development milestones.

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Boom Supersonic Chooses Colorado for Symphony Engine Testing: A Strategic Leap in Aviation

Supersonic flight is no longer just a nostalgic nod to the Concorde era, it’s fast becoming a cornerstone of next-generation aviation. Boom Supersonic, a company at the forefront of commercial supersonic travel, has taken a significant step forward by selecting the Colorado Air and Space Port (CASP) as the testing site for its Symphony engine. This move signals not only a technical milestone but also a strategic investment in sustainable, high-speed air travel.

The Symphony engine, designed specifically for Boom’s Overture airliner, represents a new paradigm in propulsion: efficient, quiet, and compatible with sustainable aviation fuel (SAF). By repurposing a former hypersonic testing facility, Boom is accelerating development while optimizing costs, an approach that reflects both innovation and pragmatism in an industry known for high barriers to entry.

Historical and Strategic Significance of the Colorado Facility

The site Boom has chosen is steeped in aerospace history. Previously used by Reaction Engines for testing the SABRE engine precooler, the facility was instrumental in achieving Mach 3.5 test conditions and managing extreme heat through rapid air cooling. Though Reaction Engines ceased operations at the site in 2024, the infrastructure remained, offering a rare opportunity for Boom to capitalize on existing high-performance test capabilities.

By adapting this legacy infrastructure, Boom avoids the significant capital expenditure of building a new test center from scratch. According to CEO Blake Scholl, this decision results in cost savings exceeding 50% compared to leasing government facilities. It also aligns with Boom’s vertically integrated development strategy, which aims to reduce external dependencies and streamline engineering workflows.

Located just 35 miles from Boom’s Denver headquarters, the facility offers logistical advantages that enhance coordination between design, testing, and manufacturing teams. As Boom prepares to scale Symphony’s development, the proximity of this site becomes a key operational asset.

“By leveraging an existing facility, we’ve created the first privately-owned supersonic test center at a fraction of the cost of government leases.” , Blake Scholl, CEO, Boom Supersonic

Economic and Regional Impact

The decision to invest up to $5 million in the Colorado site has implications beyond aviation. Lynn Baca, Chair of the Adams County Board of Commissioners, emphasized the potential for job creation and regional economic development. The project is expected to attract skilled labor and stimulate ancillary industries such as aerospace manufacturing and data analytics.

Jeff Kloska, Director of CASP, echoed this sentiment, noting that Boom’s presence helps position the spaceport as a hub for next-generation aerospace innovation. This aligns with Colorado’s broader ambitions to become a national leader in aviation and space technologies.

From a policy perspective, the partnership between Boom and CASP also showcases how public-private collaborations can accelerate technological progress while delivering tangible economic benefits to local communities.

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Technical Advancements of the Symphony Engine

The Symphony engine is a medium-bypass turbofan specifically engineered for sustained supersonic performance. At takeoff, it delivers 35,000 pounds of thrust and is optimized to cruise at Mach 1.7, enabling transatlantic flights in under four hours. This performance is achieved without afterburners, a traditional source of inefficiency and noise in supersonic engines.

Measuring 12 feet in length and 4 feet in diameter, the engine’s core includes the high-pressure compressor, combustor, and turbine. This compact yet powerful configuration is designed to withstand the thermal and mechanical stresses of supersonic flight while maintaining fuel efficiency and environmental compliance.

Symphony is also engineered for compatibility with 100% sustainable aviation fuel. This feature addresses one of the key criticisms of supersonic travel, its environmental footprint, by reducing lifecycle carbon emissions and enabling cleaner operations at high altitudes.

Collaborative Engineering and Manufacturing

Boom is not working alone. The Symphony engine is a collaborative effort involving several key industry players. Florida Turbine Technologies is spearheading aerodynamic design and compressor development, while GE Aerospace (Colibrium Additive) contributes expertise in additive manufacturing for turbine components.

Final assembly will be handled by StandardAero in San Antonio, Texas. This division of labor allows Boom to leverage specialized capabilities without compromising its vertically integrated approach. Each partner brings decades of experience to the table, ensuring that Symphony benefits from cutting-edge engineering and manufacturing practices.

By integrating these partnerships into a cohesive development strategy, Boom enhances its ability to meet aggressive timelines and regulatory requirements. The result is a propulsion system that is not only technically advanced but also scalable for commercial production.

Testing Timeline and Future Developments

The Colorado facility is undergoing a comprehensive upgrade to support Symphony’s development. Investments include SAF-compatible fuel systems, advanced data acquisition platforms, and a state-of-the-art control room. These enhancements are designed to support two key phases of testing: core evaluation in late 2025 and full-engine prototyping in 2026.

During the first phase, Boom will test the high-pressure spool under simulated supersonic conditions. This will provide critical data on thermal performance, fuel efficiency, and mechanical durability. In the second phase, the complete engine, including bypass ducts and low-pressure turbines, will be integrated and tested for thrust and acoustic performance.

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These tests are essential for refining the Symphony engine before it enters production. They also provide the foundation for regulatory certification and commercial deployment, which Boom aims to achieve by the end of the decade.

“This partnership advances our goal of establishing CASP as a global hub for next-generation aviation technologies.” , Jeff Kloska, Director, Colorado Air and Space Port

XB-1 Demonstrator and Overture Orders

Complementing Symphony’s development is Boom’s XB-1 demonstrator aircraft, which successfully broke the sound barrier six times in early 2025. These flights validated key aerodynamic and control systems, including force-feedback sidesticks and touchscreen cockpit interfaces.

The data from XB-1 is directly informing the design of the Overture airliner, which will carry 64–80 passengers and is slated for commercial service by 2029. With 130 orders from major carriers like United Airlines, American Airlines, and Japan Airlines, the commercial appetite for supersonic travel is clear.

These pre-orders represent approximately five years of production at Boom’s Overture Superfactory in Greensboro, North Carolina, further underscoring the market viability of the Symphony-powered aircraft.

Conclusion

Boom Supersonic’s decision to establish its Symphony engine test facility in Colorado is a calculated and forward-thinking move. It leverages existing infrastructure, fosters regional economic growth, and accelerates the development of a propulsion system poised to redefine commercial aviation. The Symphony engine, with its emphasis on speed, sustainability, and system integration, represents a new chapter in aerospace innovation.

Looking ahead, the success of this initiative will depend on rigorous testing, regulatory approvals, and continued advancements in sustainable aviation fuel. If Boom can meet these challenges, it may well usher in a new era of fast, efficient, and environmentally responsible air travel, bringing supersonic flight back to the commercial mainstream.

FAQ

What is the Symphony engine?
Symphony is a medium-bypass turbofan engine designed by Boom Supersonic for its Overture airliner. It is optimized for sustained supersonic flight and compatible with 100% sustainable aviation fuel.

Why did Boom choose the Colorado Air and Space Port?
Boom selected the site for its existing hypersonic testing infrastructure, cost efficiency, and proximity to the company’s headquarters in Denver.

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When will Symphony engine testing begin?
Core testing is scheduled to begin in late 2025, with full-engine prototyping planned for 2026.

What airlines have ordered the Overture aircraft?
United Airlines, American Airlines, and Japan Airlines have placed a combined 130 orders and pre-orders for the Overture.

Sources: Aerospace Testing International, Boom Supersonic, Airframer, Aviation Pros, Travel Industry Wire

Photo Credit: BoomSupersonic

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Aircraft Orders & Deliveries

Shandong Airlines Leases 10 Boeing 737 Jets in $405M Deal

Shandong Airlines, an Air China subsidiary, leases 10 Boeing 737 jets for $405 million to modernize its fleet amid US-China trade dynamics.

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Shandong Airlines, a subsidiary of China’s flagship carrier Air China, has agreed to lease 10 Boeing 737 aircraft in a transaction valued at approximately 2.88 billion yuan (US$405 million). According to reporting by the South China Morning Post, the deal was officially disclosed in a notice issued by Air China to the Shanghai Stock Exchange on Thursday, March 26, 2026.

The agreement arrives at a highly sensitive juncture for US-China trade relations, coming just weeks before a planned diplomatic visit to Beijing by US President Donald Trump. As Chinese carriers work to modernize their aging fleets, this lease highlights the ongoing reliance on Western aerospace manufacturers despite broader geopolitical headwinds and supply chain constraints.

We note that this Boeing deal also surfaces amid fierce competition from European rival Airbus, which recently secured a massive narrowbody order from another major Chinese airline, underscoring the intense battle for market share in one of the world’s most critical aviation markets.

Deal Specifics and Fleet Modernization

Breakdown of the Boeing Lease

The $405 million transaction involves a mix of previous-generation and current-generation narrowbody jets. Based on the Shanghai Stock Exchange filing cited by the South China Morning Post, Shandong Airlines has structured the leases across varying timeframes to meet its operational needs. The carrier will lease three Boeing 737-800 jets on 10-year terms, another three 737-800 jets on 11-year terms, and four newer Boeing 737 Max Commercial-Aircraft on 12-year leases.

Deliveries of the 10 aircraft are scheduled to occur in batches over the next two years. The stated purpose of the acquisition, according to the corporate filing, is to refresh the carrier’s aging fleet and expand future operational capacity.

“The announcement signals China’s continued demand for American aviation products to refresh its aging domestic fleet,” according to supplementary industry research.

Geopolitical Context and Trade Diplomacy

Timing Ahead of Presidential Visit

The timing of the lease is highly notable. The South China Morning Post and supplementary industry data indicate that the announcement precedes US President Donald Trump’s anticipated state visit to China, where he is expected to discuss trade issues with Chinese President Xi Jinping. Historically, Beijing has utilized large-scale aviation agreements as a diplomatic mechanism to help balance its significant bilateral trade deficit with the United States.

During President Trump’s previous state visit to China in 2017, Beijing agreed to purchase 300 Boeing jets. While this 10-aircraft lease by Shandong Airlines is significantly smaller in scale, it serves as a notable development in bilateral trade ahead of the upcoming high-level talks.

Global Conflicts Impacting Timelines

The broader geopolitical landscape has also shifted the timeline for these crucial trade discussions. Originally scheduled for early April 2026, Washington postponed the presidential trip to mid-May 2026. Industry research attributes this delay to the outbreak of the US-Israel war on Iran, which commenced on February 28, 2026. This conflict has created ripple effects across the globe, forcing diplomatic reshuffling and delaying key US-China negotiations.

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The Competitive Landscape in China

Airbus Secures Major China Eastern Order

Boeing’s $405 million lease agreement stands in stark contrast to recent victories by its primary competitor in the region. Just two days prior to the Shandong Airlines announcement, China Eastern Airlines revealed a massive $15.8 billion order for 101 Airbus A320neo-family aircraft on March 25, 2026.

According to industry data, the Airbus jets are slated for delivery between 2028 and 2032. This timeline suggests that Chinese carriers are aggressively securing late-decade capacity slots, locking in future growth with the European manufacturer. In late 2025 and early 2026, several other Chinese carriers, including Air China and Spring Airlines, also placed substantial Orders for Airbus narrowbody jets.

The Role of COMAC

While Chinese Airlines continue to rely heavily on Boeing and Airbus, the domestic aerospace sector is slowly maturing. China is actively integrating its domestically produced COMAC C919 narrowbody jets into commercial service. However, current production rates for the C919 lag behind the immediate fleet modernization needs of the country’s airlines. This production gap necessitates continued reliance on Western aircraft manufacturers to maintain capacity in the near term.

AirPro News analysis

At AirPro News, we view this 10-aircraft lease as a pragmatic, rather than purely political, move by Air China and its subsidiary. While the timing ahead of US-China trade talks is convenient and certainly carries diplomatic weight, the modest scale of the deal, especially when juxtaposed with the 101-aircraft Airbus order announced the same week, suggests that Boeing still faces an uphill battle in reclaiming its historical market dominance in China.

Furthermore, the specific mix of older 737-800s and newer 737 Max jets indicates an urgent need for immediate, reliable capacity. As COMAC works to ramp up C919 production over the next decade, Chinese carriers are forced into a delicate balancing act. They must utilize leased Boeing and Airbus aircraft to bridge the operational gap until domestic Manufacturing can fully meet the surging demand of the Chinese travel market.

Frequently Asked Questions

How much is the Shandong Airlines Boeing lease worth?

The transaction is valued at 2.88 billion yuan, which is approximately US$405 million.

What types of aircraft are included in the deal?

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The lease includes a total of 10 narrowbody jets: three Boeing 737-800s on 10-year leases, three 737-800s on 11-year leases, and four Boeing 737 Max aircraft on 12-year leases.

When will the planes be delivered?

According to the Shanghai Stock Exchange filing, the aircraft will be delivered in batches over the next two years.

Why was the US presidential visit to China postponed?

Originally scheduled for early April 2026, the visit was postponed to mid-May 2026 due to the outbreak of the US-Israel war on Iran in late February 2026.

Sources

Photo Credit: byeangel

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Commercial Aviation

Hopscotch Air Partners with Euroairlines for Scheduled Flight Marketing

Hopscotch Air teams with Euroairlines to market flights on global distribution systems, expanding access through major online travel agencies.

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This article is based on an official press release from Hopscotch Air.

Hopscotch Air, a regional air mobility company operating in the Northeast United States, has signed a new agreement with Euroairlines to market its flights through major online travel agencies (OTAs) and traditional travel networks. The partnership marks a significant step for the New York-based operator as it seeks to expand its visibility and passenger base.

According to an official press release from Hopscotch Air, the new scheduled service will be marketed under Euroairlines’ IATA code (Q4) while being operated by Hopscotch Air (O2). This integration allows the regional carrier to debut on the global distribution system (GDS) this spring, offering travelers more streamlined booking options for its flights.

Initially, the scheduled flights will be based on Hopscotch Air’s existing on-demand schedule, specifically utilizing “empty-leg” flights. The company plans to introduce dedicated scheduled flights at a later date, with most routes featuring Westchester County Airport (KHPN) as a primary hub in the New York metropolitan region.

Expanding access through global distribution

The collaboration with Euroairlines is designed to bridge the gap between private regional aviation and commercial booking platforms. By leveraging Euroairlines’ established distribution network, Hopscotch Air can now reach passengers who typically book through standard online travel agencies.

Euroairlines, founded in Spain in 2000, specializes in connecting airlines through robust distribution services supported by top travel agencies and GDS platforms. The company operates under IATA plate Q4-291 and maintains a global presence with offices in major hubs including Madrid, New York, Miami, and São Paulo.

“To partner with a well-established, global airline that makes it easier for us to have access to the online travel agencies is a terrific step forward for our company,” said Andrew Schmertz, CEO of Hopscotch Air, in the company’s press release.

Euroairlines leadership also highlighted the mutual benefits of the partnership, noting the operational advantages of the new agreement.

“The agreement with Hopscotch Air allows us to offer passengers more flexible travel options while optimizing our operations,” stated Antonio López-Lázaro, CEO of Euroairlines. “Integrating these flights into the global distribution system expands our route network and reinforces our commitment to innovation and sustainability.”

Hopscotch Air’s operational footprint

Hopscotch Air, a wholly owned subsidiary of Hopscotch Go Corporation, launched in 2009 and operates as an FAA-certificated regional air mobility company. The carrier currently performs approximately 1,000 revenue legs annually, providing an alternative to traditional commercial flights and expensive private charters.

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The company’s fleet consists of technologically advanced Cirrus SR22 aircraft, which are flown from primary bases in New York and Boston. These single-engine piston aircraft are designed to offer affordable, on-demand aviation to regional destinations that are often underserved by major commercial airlines.

AirPro News analysis

The Euroairlines agreement arrives during a period of active expansion for Hopscotch Air. Industry reporting by ch-aviation indicates that the carrier is pursuing a commuter air carrier certificate to support a planned expansion into dedicated scheduled services.

According to recent filings and industry estimates from Aviation International News, Hopscotch Go Corporation has filed a Regulation A Offering Circular with the U.S. Securities and Exchange Commission to raise capital. The company intends to use these funds to expand its fleet of Cirrus aircraft, increase pilot staffing, and potentially acquire larger aircraft, such as the Cessna Grand Caravan or Tecnam P2012, to support its scheduled service ambitions.

By securing GDS distribution through Euroairlines now, Hopscotch Air is laying the critical digital infrastructure needed to fill seats once its dedicated scheduled routes and larger aircraft come online. This strategy mirrors a broader industry trend where regional air mobility providers are increasingly integrating with traditional airline booking systems to capture a wider segment of the traveling public.

Frequently Asked Questions

What is the new agreement between Hopscotch Air and Euroairlines?

Hopscotch Air has partnered with Euroairlines to market its flights through major online travel agencies and global distribution systems using Euroairlines’ IATA code (Q4).

What types of flights will Hopscotch Air offer on these platforms?

Initially, the company will offer scheduled flights based on its “empty-leg” on-demand schedule. It plans to introduce specific scheduled flights later, primarily connecting through Westchester County Airport (KHPN).

What aircraft does Hopscotch Air operate?

Hopscotch Air operates a fleet of Cirrus SR22 single-engine piston aircraft from its bases in New York and Boston.

Sources: Hopscotch Air Press Release

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Photo Credit: Hopscotch Air

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Commercial Aviation

American Airlines Plans Major In-Flight Wi-Fi and Entertainment Upgrade

American Airlines evaluates Starlink and Amazon Leo for Wi-Fi upgrades, considers returning seatback screens with Amazon content by 2027.

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American Airlines is evaluating a massive overhaul of its in-flight entertainment and connectivity (IFEC) systems. According to reporting by CNBC, the carrier is in active discussions with low Earth orbit (LEO) satellite providers, including SpaceX’s Starlink and Amazon’s Leo network, to significantly upgrade its Wi-Fi capabilities.

In a major strategic pivot, the airline is also weighing the reintroduction of seatback screens across its narrow-body fleet. This move would reverse a nearly decade-old cost-cutting measure that relied heavily on passengers bringing their own devices to stream content.

The potential upgrades highlight a broader industry shift toward premium passenger experiences and high-speed, ground-like internet in the sky. We are seeing Airlines increasingly view connectivity not just as a standard perk, but as a critical competitive advantage in capturing high-value travelers.

The Battle for High-Speed In-Flight Wi-Fi

The aviation industry is rapidly transitioning from legacy geostationary satellite systems to LEO networks, which offer significantly lower latency and higher bandwidth. American Airlines currently relies on traditional providers Viasat and Intelsat for its onboard internet, but the carrier is now looking to future-proof its fleet.

SpaceX’s Starlink currently dominates the LEO market with over 10,000 satellites in orbit. Major U.S. competitors, including United Airlines and Alaska Airlines, have already committed to outfitting their fleets with Starlink technology. Meanwhile, Amazon’s Leo network (formerly Project Kuiper) is emerging as a formidable challenger. Though it is still in its early deployment phase with roughly 150 satellites as of late 2025, Amazon plans to launch over 3,200 in total. JetBlue has already announced plans to adopt Amazon’s network starting in 2027.

Executive Perspectives and Industry Rivalry

American Airlines CEO Robert Isom confirmed that the carrier is evaluating multiple vendors to ensure reliability and avoid dependence on a single provider.

“We’re making sure that American is going to have the best connectivity options,” Isom stated, emphasizing the airline’s focus on fast, dependable internet.

The high-stakes competition between the tech giants has sparked public commentary from industry leaders. Commenting on American’s talks with Amazon, SpaceX CEO Elon Musk issued a warning on the social media platform X:

“American Airlines will lose a lot of customers if their connectivity solution fails.”

Similarly, Starlink VP of Engineering Michael Nicolls took a competitive jab at the ongoing negotiations, suggesting passengers should only fly on airlines with good connectivity, adding that there is currently only one reliable source available. FCC Chair Brendan Carr also recently weighed in on Amazon’s deployment challenges, noting that the company might fall roughly 1,000 satellites short of meeting its upcoming deployment milestone.

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The Return of Seatback Screens and Amazon Integration

Nearly ten years ago, American Airlines made the controversial decision to remove seatback screens from its narrow-body planes. The rationale was to reduce aircraft weight, save on fuel, and cut maintenance costs, operating under the assumption that passengers preferred the “Bring Your Own Device” model.

Now, according to the CNBC report, the airline is seriously considering reinstalling screens on over 790 Boeing and Airbus single-aisle jets. A final decision on this capital-intensive initiative could arrive as early as April 2026.

A Potential E-Commerce Hub at 35,000 Feet

Beyond hardware upgrades, American is exploring a unique content partnership with Amazon to supply entertainment for the potential new seatback screens. While the airline currently partners with Apple to offer Apple Music and Apple TV+ content, a new deal could integrate Amazon Prime Video and Amazon Music directly into the passenger experience.

Furthermore, the integration might allow passengers to shop on Amazon using their AAdvantage loyalty miles while in flight. This would create a novel e-commerce ecosystem in the sky, blending in-flight entertainment with retail opportunities.

Timeline and Implementation Challenges

Upgrading an entire fleet is a monumental and highly capital-intensive task. If American Airlines selects Amazon Leo, a fleetwide rollout would likely not occur until closer to 2027, aligning with the network’s expected commercial readiness.

Retrofitting nearly 800 aircraft with new LEO antennas and seatback screens will require significant financial investment and several years of scheduled maintenance downtime to complete. However, the successful implementation of LEO Wi-Fi would drastically improve the passenger experience, allowing for seamless video streaming, live gaming, and video conferencing.

AirPro News analysis

The core narrative emerging from these developments is American Airlines pivoting from a strict cost-cutting mindset to a premium customer experience Strategy. For years, the removal of seatback screens was a point of contention for passengers who compared American’s domestic product unfavorably to competitors like Delta Air Lines, which retained and continuously upgraded its seatback entertainment.

The rivalry between Elon Musk’s Starlink and Jeff Bezos’s Amazon Leo serves as a compelling backdrop. By pitting the two satellite providers against each other, American Airlines is likely seeking leverage to secure the best possible pricing, bandwidth guarantees, and service-level agreements. Additionally, the potential integration of AAdvantage miles with Amazon e-commerce represents a highly innovative ancillary revenue stream. If executed correctly, this retail integration could help offset the massive capital expenditure required for the hardware retrofits, turning a traditional cost center into a revenue generator.

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Frequently Asked Questions (FAQ)

When will American Airlines make a decision on seatback screens?
According to industry reports, a final decision regarding the reinstallation of seatback screens on narrow-body jets could be made as early as April 2026.

Which airlines are already using Starlink or Amazon Leo?
United Airlines and Alaska Airlines have committed to outfitting their fleets with SpaceX’s Starlink. JetBlue has announced plans to deploy Amazon’s Leo network starting in 2027.

How many satellites do Starlink and Amazon Leo currently have?
Starlink currently operates over 10,000 satellites in low Earth orbit. Amazon Leo is in its early deployment phase with roughly 150 satellites as of late 2025, though it plans to launch over 3,200.

Sources: CNBC

Photo Credit: American Airlines

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