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Helix and Astro Mechanica Develop Duality Supersonic Engine

Helix and Astro Mechanica partner to create the Duality turboelectric engine for Mach 3 supersonic travel with hybrid propulsion.

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Helix and Astro Mechanica Partner to Power New “Duality” Supersonic Engine

In a major step toward reviving commercial supersonic travel, UK-based electric motor manufacturer Helix (formerly Integral Powertrain) has announced a strategic partnerships with California aerospace startups Astro Mechanica. The collaboration focuses on the development of the “Duality” engine, a turboelectric adaptive propulsion system designed to enable efficient flight at speeds up to Mach 3.

According to the official announcement from Helix, the partnership integrates their high-performance electric motors into Astro Mechanica’s proprietary engine architecture. This technology aims to solve the efficiency and range limitations that grounded previous supersonic aircraft like the Concorde. By utilizing a hybrid-electric approach, the companies hope to make supersonic travel affordable enough to compete with current business-class ticket prices.

The initiative is backed by significant industry interest and capital. Astro Mechanica has reportedly secured approximately $27 million in Series A funding, with investments including Andreessen Horowitz, Lowercarbon Capital, and United Airlines Ventures.

The Technology: A Turboelectric Adaptive Engine

The core of this partnership is the “Duality” engine, which differs fundamentally from traditional jet propulsion. In standard jet engines, the compressor and turbine are mechanically linked on a single shaft, which limits efficiency across different speed regimes. The Duality engine replaces this mechanical link with an electric-aviation drivetrain.

Decoupling for Efficiency

As described in the technical details released by the companies, the Duality engine uses a gas turbine generator to produce electricity. This power is then directed to Helix electric motors, which drive the engine’s fan and compressor independently. This “decoupling” allows the engine to adapt its behavior based on the phase of flight:

  • Subsonic Mode: During takeoff and landing, the engine functions as a fuel-efficient turbofan, reducing noise and fuel consumption.
  • Supersonic Mode: At cruising speeds, it transitions to a turbojet configuration.
  • Hypersonic Mode: For speeds exceeding Mach 3, the system is designed to function as a ramjet, utilizing the sheer speed of the aircraft to compress air without moving parts in the airflow.

The system is designed to operate on Liquefied Natural Gas (LNG) or synthetic methane. These fuels were selected for their lower cost and higher energy density compared to traditional jet fuel, further supporting the goal of economic viability.

Helix’s Role: High-Density Electric Power

Standard electric motors are typically too heavy for the power-to-weight ratios required in aerospace applications. Helix, known for supplying motors to high-performance automotive projects like the Lotus Evija and Aston Martin Valkyrie, is providing the specialized hardware needed to make the Duality engine feasible.

The current Gen 4 prototype of the engine utilizes four Helix SPX242-94 motors. According to the specifications provided:

  • Power: 400kW peak / 300kW continuous per motor.
  • Weight: 31.3 kg (69 lbs).
  • Torque: 470 Nm.

Looking ahead to the Gen 5 production version, Helix aims to deliver even higher performance, targeting 900kW continuous power and speeds up to 20,000 rpm, all within a package weighing approximately 61.5 kg.

“Duality shows what becomes possible when you remove weight as the limiting factor.”

— Derek Jordanou-Bailey, Aerospace Chief Engineer at Helix

Strategic Implications for Aviation

The aviation industry has long sought a successor to the Concorde, which was retired due to high operating costs and limited range. The Concorde burned massive amounts of fuel during taxi and takeoff, rendering it uneconomical for many routes. The Duality engine’s adaptive capability addresses this specific hurdle by optimizing efficiency at low speeds while maintaining the thrust required for supersonic cruise.

Astro Mechanica is targeting transpacific routes, such as San Francisco to Tokyo, with flight times under five hours. While commercial travel is the ultimate goal, the technology has immediate applications in the defense sector for high-speed drones and government transport.

AirPro News Analysis

The partnership between Helix and Astro Mechanica highlights a critical shift in the “green aviation” narrative. For years, the industry focus was heavily tilted toward pure electric flight (battery-powered). However, energy density limitations of current battery technology have restricted pure electric aircraft to short-range, low-speed/urban air mobility applications.

We observe that the industry is increasingly pivoting toward turboelectric and hybrid architectures for long-haul and high-speed applications. By using fuel (like LNG) for energy storage but electric motors for aerodynamic control, manufacturers can achieve the benefits of electrification, precise control, decoupled systems, and efficiency, without the weight penalty of massive battery packs. This approach may well be the bridge technology that finally makes supersonic commercial flight viable again.

Timeline and Future Outlook

Following a successful “hot-fire” test of the Gen 3 engine in October 2024, the companies are now focused on the Gen 4 prototype. Current projections estimate the first flight of a sub-scale demonstrator aircraft could occur between 2027 and 2028, with a target for commercial service entry in the 2030s.

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Photo Credit: Helix

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Sustainable Aviation

Menzies Aviation Achieves 25 Percent Electric Ground Support Equipment Target

Menzies Aviation reached its goal of 25% electric Ground Support Equipment globally by 2025, investing $200M and expanding alternative fuel use.

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This article is based on an official press release from Menzies Aviation.

The aviation industry faces mounting pressure to decarbonize, and while in-flight emissions dominate headlines, ground operations offer immediate opportunities for sustainability. According to a recent press release, Menzies Aviation has officially reached its global target of electrifying 25% of its Ground Support Equipment (GSE) by the end of 2025.

Menzies Aviation, recognized as the world’s largest aviation services company operating at 347 airports across 65 countries, achieved this milestone through a dedicated $200 million investment aimed at modernizing its vehicle fleet. The company reported adding more than 620 electric GSE assets to its operations in 2025 alone, pushing the global proportion of its electric equipment from 22% in 2024 to the 25% target. Currently, 11 Menzies locations operate fleets with more than 70% electric GSE, and over 20 locations have surpassed the 50% mark.

Driving the Transition: Fleet Modernization and Regional Success

European Operations Lead the Charge

The transition to electric GSE is heavily dependent on local airport charging infrastructure, leading to regional variations in adoption. In its press release, Menzies Aviation highlighted Europe as the leading region, with more than 50% of all GSE across the continent now fully electric.

Specific European locations have achieved even higher electrification rates. At Milan Malpensa Airport (MXP) in Italy, a partnership with AGS Handling has resulted in over 80% of motorized GSE becoming electric. When combined with a permanent switch to electric Pre-Conditioned Air Units, this allows for fully electric aircraft turnarounds. Additionally, the company noted that Manchester Airport in the UK increased its electric GSE to 40% following the deployment of two hybrid de-icing rigs, while London Gatwick (LGW) and Copenhagen (CPH) introduced fully electric fuel hydrant dispensers to support quieter, lower-emission operations.

Progress in Oceania and South East Asia

Progress is also visible outside of Europe. Menzies Aviation reported that its operations in Oceania and South East Asia increased to 30% electric GSE in 2025. As part of this regional push, the company has initiated trials for electric ground power units (GPUs) in Cairns, Australia.

Bridging the Gap with Alternative Fuels

Recognizing that full electrification is not yet viable at all airports due to infrastructure constraints, Menzies Aviation has expanded its use of lower-emission alternative fuels. The company’s press release details a significant pivot toward Hydrotreated Vegetable Oil (HVO) where electric charging grids remain insufficient.

In 2025, Menzies utilized two million liters of HVO, marking a 50% year-on-year increase from 2024. According to the company, HVO has fully replaced diesel in several major locations, including San Diego, Los Angeles, Amsterdam, and Stockholm Arlanda. The use of this alternative fuel has also been expanded at London Heathrow (LHR) and London Gatwick (LGW).

Corporate Strategy and Financial Alignment

The 25% electric GSE milestone is a component of Menzies Aviation’s broader “All In” sustainability strategy, which targets net-zero greenhouse gas emissions by 2045. The company noted it is the first major aviation services provider to have its net-zero targets validated by the Science Based Targets initiative (SBTi), adding scientific credibility to its corporate goals.

“2025 was a year of real progress towards our net-zero target. Achieving our ambitious goal of 25% electric GSE by 2025 across our fleet and accelerating our adoption of lower‑emissions fuels and renewable energy demonstrates our commitment to reducing emissions, even as our global network continues to grow. We are now focused on building on this momentum, with further increases in electric GSE already underway across our network.”

, Jonathan Hankin, Head of ESG at Menzies Aviation

Crucially, the press release indicates that these sustainability investments are occurring alongside robust financial growth. Menzies reported a 16% year-on-year growth in 2025, surpassing $3 billion in revenue, demonstrating that aggressive decarbonization efforts can run parallel to global expansion.

AirPro News analysis

We observe that while sustainable aviation fuel (SAF) and next-generation electric aircraft frequently dominate media coverage regarding aviation decarbonization, ground operations represent a highly actionable area for immediate, measurable emissions reductions. Transitioning tarmac vehicles from diesel to electric power directly reduces Scope 1 emissions while simultaneously improving local air quality and lowering noise pollution for airport workers and surrounding communities.

However, the data provided by Menzies Aviation underscores a critical industry bottleneck: infrastructure. The speed of GSE electrification is intrinsically linked to the willingness and ability of airports to upgrade their electrical grids and charging capabilities. The reliance on bridge technologies like HVO in major hubs such as Los Angeles and London Heathrow highlights that even well-capitalized service providers must wait for municipal and airport infrastructure to catch up with corporate sustainability ambitions.

Frequently Asked Questions (FAQ)

What is Ground Support Equipment (GSE)?
GSE refers to the vehicles and machinery found on an airport tarmac used to service aircraft between flights. This includes baggage tugs, fuel hydrant dispensers, ground power units, and de-icing rigs.

Why is Menzies Aviation using Hydrotreated Vegetable Oil (HVO)?
While Menzies is transitioning to electric equipment, many airports currently lack the electrical grid infrastructure required to charge large fleets of electric vehicles. HVO serves as a lower-emission “bridge” fuel that can immediately replace diesel in existing combustion engines without requiring new infrastructure.

What is the Science Based Targets initiative (SBTi)?
The SBTi is a corporate climate action organization that enables companies to set greenhouse gas emissions reduction targets grounded in climate science. Menzies Aviation is the first major aviation services provider to have its net-zero targets validated by this body.


Sources: Menzies Aviation Press Release

Photo Credit: Menzies Aviation

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Technology & Innovation

Surf Air Mobility Joins FAA-Backed Advanced Aviation Consortium

Surf Air Mobility becomes the first Part 135 operator in the FAA-sponsored CAAT Consortium to support next-gen aviation tech integration.

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

Surf Air Mobility Inc. (NYSE: SRFM) has officially become a member organization of the Center for Advanced Aviation Technologies (CAAT) Consortium. According to the company’s press release, this development marks a notable industry milestone, as Surf Air Mobility is the first Part 135 passenger operator to join the initiative.

The CAAT Consortium operates as a collaborative national effort spearheaded by the Texas A&M University System in partnership with the Federal Aviation Administration (FAA). Its primary objective is to facilitate the safe and efficient integration of next-generation aviation technologies, such as electric aircraft and autonomous systems, into the National Airspace System.

By joining this consortium, Surf Air Mobility positions itself at the forefront of regulatory and technological advancements in the air mobility sector. We view this integration between active commercial operators and regulatory research bodies as a critical step toward modernizing aviation infrastructure.

Strategic Benefits of CAAT Membership

Unlocking FAA Collaboration and Research

The official announcement outlines several key advantages for Surf Air Mobility as a new consortium member. Primarily, the company gains eligibility to bid on and respond to FAA-funded task orders that are exclusively available to CAAT members. This opens a direct channel for the operator to contribute to federally backed aviation projects.

Furthermore, membership grants Surf Air Mobility enhanced visibility into the FAA’s research priorities and emerging technology requirements. The company will also participate in exclusive working groups and discussions that help shape future solicitations, allowing them to collaborate closely with government, academic, nonprofit, and industry partners.

Industry and Regulatory Perspectives

Leadership Insights on the Integration

Company leadership emphasized the strategic alignment between their operational goals and the consortium’s mission. Deanna White, CEO of Surf Air Mobility, highlighted the importance of this partnership in developing their intelligent operating system for air mobility.

“Membership puts us alongside the organizations defining how next-generation aviation technologies integrate into the national airspace,” stated White in the press release, noting it allows the company to leverage its AI-enabled software capabilities.

The CAAT leadership also welcomed the addition of a commercial operator to their ranks. Albert Bejarano, Acting Associate Director for CAAT, noted that Surf Air Mobility’s inclusion provides a crucial real-world perspective for the consortium’s ongoing research.

“Surf Air Mobility brings a valuable industry perspective through its real-world aviation operations, operational data, and software-enabled capabilities,” Bejarano noted in the release, adding that their participation will bolster technology evaluation efforts.

AirPro News analysis

We observe that Surf Air Mobility’s entry into the CAAT Consortium as the first Part 135 passenger operator is a significant development for the advanced air mobility (AAM) sector. Part 135 operators handle commuter and on-demand operations, meaning they possess practical, day-to-day data on passenger logistics, flight operations, and airspace utilization.

By bridging the gap between theoretical research and active commercial operations, the FAA and Texas A&M can leverage Surf Air’s operational data to create more realistic evaluation pathways for electric and autonomous aircraft. This symbiotic relationship suggests a maturing regulatory approach, where the FAA is actively seeking input from the operators who will ultimately deploy these emerging technologies in the National Airspace System.

Frequently Asked Questions

What is the CAAT Consortium?

The Center for Advanced Aviation Technologies (CAAT) Consortium is a national initiative between the Texas A&M University System and the FAA. It is designed to safely integrate emerging aviation technologies, such as electric and autonomous aircraft, into the National Airspace System.

Why is Surf Air Mobility’s membership significant?

According to the company’s press release, Surf Air Mobility is the first Part 135 passenger operator to join the consortium, bringing real-world operational data and industry perspective to the research initiative.

What benefits does Surf Air Mobility receive from joining?

The company gains access to exclusive FAA-funded task orders, visibility into federal research priorities, and the ability to participate in working groups that will shape future aviation technology solicitations.

Sources

Photo Credit: Surf Air Mobility

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Sustainable Aviation

SWISS Partners with Metafuels to Advance Synthetic Aviation Fuel Production

SWISS and Lufthansa Group partner with Metafuels to accelerate synthetic Sustainable Aviation Fuel production and meet EU 2030 mandates.

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This article is based on an official press release from Swiss International Air Lines (SWISS).

On May 13, 2026, Swiss International Air Lines (SWISS), in coordination with its parent company the Lufthansa Group, announced a strategic partnerships with Zurich-based climate tech company Metafuels. According to the official press release, the collaboration is designed to accelerate the industrial-scale production of synthetic Sustainable Aviation Fuel (e-SAF). By securing early access to Metafuels’ proprietary technology, SWISS aims to proactively position itself ahead of strict European synthetic fuel mandates set to take effect in 2030.

The agreement outlines that SWISS and the Lufthansa Group intend to commit to long-term procurement contracts with Metafuels. This move highlights a growing industry trend where Airlines are partnering directly with deep-tech Startups to ensure future supply chains. The partnership also underscores Switzerland’s emerging role as a climate innovation hub, leveraging local research institutions to solve global decarbonization challenges.

Current global production volumes of synthetic aviation fuels are vastly insufficient to meet upcoming political and environmental targets. By collaborating with Metafuels, SWISS is taking a direct role in bringing viable synthetic SAF solutions to the commercial market.

The Shift to Synthetic Aviation Fuels

Overcoming the Limitations of First-Generation SAF

To understand the significance of this partnership, we must look at the limitations of current sustainable aviation fuels. Today, the vast majority of commercially available SAF is produced via the HEFA process (Hydroprocessed Esters and Fatty Acids), which relies heavily on waste oils and animal fats. Because these biological feedstocks are strictly limited in global supply, the aviation industry is being forced to transition to synthetic fuels, or e-SAF, to achieve true scalability.

According to the provided research data, Metafuels has developed a proprietary catalytic technology known as aerobrew. This process efficiently converts green methanol into aviation-grade jet fuel. The green methanol itself is produced by using renewable electricity to split water into green Hydrogen, which is then combined with carbon dioxide captured directly from the atmosphere or from biogenic waste sources.

Crucially, the resulting synthetic SAF is a “drop-in” fuel. This means it can be blended with conventional jet fuel, currently up to a 50 percent regulatory limit, and utilized in existing airport infrastructure and Commercial-Aircraft engines without requiring any technical modifications.

Scaling Up Production and Infrastructure

From Demonstration to Commercial Scale

Metafuels, founded in 2021 by Saurabh Kapoor, Leigh Hackett, and Ulrich Koss, has been rapidly expanding its operational footprint. Industry reports indicate that in early 2026, the company raised between $22 million and $24 million to pioneer its technology at a commercial scale, followed by a €1.92 million grant from the Dutch government in April 2026.

Currently, Metafuels operates a demonstration plant at the Paul Scherrer Institute in Villigen, Switzerland. This facility is capable of producing up to 50 liters of SAF per day to validate the aerobrew process. Simultaneously, the company is developing its first commercial-scale facility, dubbed “Project Turbe,” located in the Port of Rotterdam. According to project outlines, this facility aims to produce 10 tons of e-SAF per day by 2028, scaling up to 100 tons per day by 2031.

For the Lufthansa Group, which has committed to a carbon-neutral footprint by 2050, securing output from these future facilities is critical. The group has already seen success with its “Green Fares,” which allow passengers to offset flight emissions. In 2025, nearly 7 million Lufthansa Group passengers opted for these sustainable travel options, demonstrating strong consumer demand for decarbonized air travel.

“Future availability of sustainable fuels at sufficient scale will only be possible if investments in technologies and partnerships are made today. That is exactly what we are doing with Metafuels. We do not want to wait on the sidelines, but actively contribute to making synthetic fuels market-ready and scalable…”

— Jens Fehlinger, CEO of SWISS, via company press release

Regulatory Pressures Driving the Market

Meeting the ReFuelEU Mandates

The driving force behind this procurement strategy is the impending regulatory landscape in Europe. Under the European Union’s “Fit for 55” package, the ReFuelEU Aviation Mandate legally requires aviation fuel suppliers to blend a minimum percentage of SAF into the fuel provided at EU airports.

The mandate began at a 2 percent overall SAF requirement in 2025 and will rise to 6 percent in 2030, eventually reaching 70 percent by 2050. More importantly for this partnership, the legislation includes a specific sub-mandate for synthetic aviation fuels (e-kerosene). Starting in 2030, 1.2 percent of all aviation fuel must be synthetic, rising to 35 percent by 2050.

“This agreement with SWISS and the Lufthansa Group is both a milestone for us and a clear affirmation of the role that synthetic SAF will play in the future of aviation… With both rising demand projected and tighter regulatory provisions ahead, synthetic fuels will only gain in importance.”

— Saurabh Kapoor, CEO of Metafuels, via company press release

AirPro News analysis

As we analyze the broader aviation market, it is clear that the race for 2030 compliance has officially begun. SWISS’s partnership with Metafuels is a direct strategic maneuver to secure the supply needed to meet the 1.2 percent synthetic quota. Because the current global supply of e-SAF is virtually non-existent compared to projected future demand, airlines that fail to lock in early procurement contracts risk severe compliance penalties or exorbitant spot-market fuel prices by the end of the decade. By partnering with a local deep-tech startup, SWISS is not only hedging its regulatory risks but also investing in the localized energy security of the European aviation sector.

Frequently Asked Questions

What is e-SAF?

e-SAF, or synthetic Sustainable Aviation Fuel, is a type of aviation fuel made from renewable electricity, water, and carbon dioxide, rather than biological waste products like used cooking oil. It is considered infinitely scalable compared to first-generation SAF.

Why is SWISS partnering with Metafuels now?

SWISS is securing early access to Metafuels’ future production capacity to ensure it can meet the European Union’s strict mandate requiring 1.2 percent of all aviation fuel to be synthetic by the year 2030.

Can e-SAF be used in current airplanes?

Yes. The synthetic fuel produced by Metafuels’ aerobrew process is a “drop-in” fuel, meaning it can be blended with traditional jet fuel (up to a 50 percent limit) and used in existing aircraft engines without any modifications.


Sources: Swiss International Air Lines (SWISS) Press Release

Photo Credit: SWISS

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