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Collins Aerospace Completes HECATE Project Achieving TRL5 for Hybrid-Electric Aircraft

Collins Aerospace completes HECATE project, validating 800V electrical system for hybrid-electric aircraft with TRL5 certification under Clean Aviation initiative.

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This article is based on an official press release from Collins Aerospace.

On March 17, 2026, Collins Aerospace, an RTX business, announced the successful completion of the Hybrid-ElectriC regional Aircraft distribution TEchnologies (HECATE) project. According to the company’s press release, this initiative has officially achieved Technology Readiness Level 5 (TRL5), a critical milestone that proves the viability of its electrical architecture design for future hybrid-electric Commercial-Aircraft under real-world simulated conditions.

The HECATE project is a cornerstone of the European Union’s Clean Aviation Joint Undertaking (CAJU), receiving additional support from UK Research and Innovation. Industry data provided in supplementary research reports notes that CAJU operates with a €4.1 billion budget aimed at reducing the greenhouse gas Emissions of regional aircraft by up to 50 percent compared to 2020 standards. The successful conclusion of HECATE’s Phase 1 testing marks a significant step toward the program’s ultimate goal of introducing zero-emission commercial aircraft into service by 2035.

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At AirPro News, we recognize that the transition to hybrid-electric Propulsion requires massive leaps in onboard energy management. The HECATE consortium, led by Collins Aerospace and featuring technical coordination by Safran Electrical & Power, has demonstrated that the European aerospace supply chain can collaboratively meet these high-voltage demands.

The HECATE Project and High-Voltage Aviation

Overcoming Megawatt-Class Challenges

As the Manufacturers industry pivots toward hybrid-electric propulsion, the electrical demands placed on aircraft systems increase exponentially. Traditional electrical networks are ill-equipped to handle megawatt-class power levels without adding prohibitive weight or introducing high-voltage hazards such as arcing and electromagnetic interference. According to the Collins Aerospace press release, the HECATE project directly addressed these hurdles by developing a lightweight, compact, and holistically optimized electrical power generation and distribution system.

During the testing phase, the consortium successfully demonstrated an 800-volt architecture capable of handling more than 500 kilowatts (kW) of power. To achieve this safely and efficiently, the Phase 1 CAJU project utilized digital twin technology. The official release notes that simulating real-world operations digitally significantly reduced physical testing time while ensuring the system adhered to strict electromagnetic compatibility standards.

“Through successful collaboration with HECATE consortium partners, we have advanced critical technologies for hybrid-electric propulsion and more electric aircraft to meet future high power, high-voltage aircraft demands. With efficient, lightweight, and compact electrical power distribution technologies, Collins is well-positioned for continued maturation and integration testing under Clean Aviation Phase 2 programs, moving closer to commercial viability.”

— Kristin Smith, Vice President of Electric Power Systems at Collins Aerospace

Ground Testing at the “Copper Bird” Facility

Simulating Flight in Niort, France

The physical validation of the HECATE system took place at Safran Electrical & Power’s specialized “Copper Bird” facility in Niort, France. According to supplementary project data, the Copper Bird is a unique ground-test platform designed to integrate and test an aircraft’s entire advanced electrical system in a controlled environment before flight testing begins.

The integration process was a massive collaborative effort. The Clean Aviation Joint Undertaking reports that the project was jointly developed by 38 participating entities across 11 European countries, including major players like Airbus Defence and Space and Leonardo, alongside various universities. Bringing hardware from dozens of partners into a single, functioning 500 kW network on the Copper Bird proved the efficacy of the consortium’s design.

“We are very proud to have integrated the full suite of partner systems from the HECATE consortium into our state-of-the-art electrical systems test bench in Niort. This integration highlights the strength of our collaboration and our technical leadership in hybrid-electric and electric propulsion.”

— Agnès Pronost-Gilles, Executive VP & General Manager for Power Division, Safran Electrical & Power

Transitioning to Clean Aviation Phase 2

OSYRYS and LEIA Initiatives

The completion of HECATE serves as the launchpad for Phase 2 of the Clean Aviation initiative. According to industry research reports, CAJU announced €945 million in funding for 12 new Call 3 projects in late 2025, with work officially kicking off in early 2026. These projects aim to take the technologies proven in HECATE from the laboratory to the sky, with initial flight tests slated for the 2028–2029 timeframe.

The Collins Aerospace release highlights two key Phase 2 projects: OSYRYS and LEIA. OSYRYS, led by Safran Electrical & Power, will focus on developing and testing electrical systems specifically for hybrid-electric regional aircraft. Meanwhile, LEIA, coordinated by Airbus, aims to scale these hybrid-electric architectures for larger, short-to-medium range commercial aircraft.

“Hybrid-electric aircrafts need reliable and powerful electrical architectures to safely fly our skies — and HECATE has brought us a decisive step closer towards this goal with tangible results and win-win collaboration with EASA. At Clean Aviation, we will be excited to see how Phase 2 projects build on HECATE achievements and will further mature the technology for an entry into service by 2035.”

— María Calvo, Head of Unit Project Management at Clean Aviation

AirPro News analysis

The successful TRL5 certification of the HECATE project underscores a critical, often-overlooked element of next-generation aviation: regulatory synergy. By collaborating continuously with the European Union Aviation Safety Agency (EASA) and standards groups like EUROCAE throughout the development process, the HECATE consortium has ensured that these high-voltage systems are not just functional in a lab, but fundamentally certifiable for commercial flight.

Furthermore, while Sustainable Aviation Fuel (SAF) remains the industry’s primary short-term tool for decarbonization, the physical limits of SAF production necessitate mechanical innovations. The 800-volt, 500 kW architecture proven by Collins Aerospace and Safran represents the foundational infrastructure required to make hybrid-electric regional flights a reality by the 2035 target. Without these high-voltage distribution networks, the transition to zero-emission aviation would stall at the propulsion level.

Frequently Asked Questions (FAQ)

  • What is the HECATE project?
    HECATE (Hybrid-ElectriC regional Aircraft distribution TEchnologies) is a European research initiative aimed at developing high-voltage electrical power generation and distribution systems for future hybrid-electric aircraft.
  • What does TRL5 mean?
    Technology Readiness Level 5 (TRL5) indicates that a technology has been rigorously tested and validated in a relevant, simulated environment, in this case, Safran’s “Copper Bird” ground-test platform.
  • When will these hybrid-electric aircraft fly?
    Phase 2 projects (like OSYRYS and LEIA) aim to begin flight tests between 2028 and 2029, with the ultimate goal of commercial entry into service by 2035.

Sources: Collins Aerospace Press Release, HECATE Project Official Site

Photo Credit: RTX

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Skyfly Technologies Raises $10M to Certify Axe eVTOL

Skyfly Technologies closes $10M seed round to certify its Axe eVTOL under FAA MOSAIC rules, targeting 2027 customer deliveries.

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Skyfly Technologies Raises $10M to Certify Axe eVTOL

British aerospace developer Skyfly Technologies has closed a $10 million seed funding round to transition its two-seat Axe electric vertical takeoff and landing (eVTOL) aircraft from prototype to certified production. The investment will also accelerate the development of a hybrid-electric unmanned variant aimed at the defense sector.

The funding round, announced in an October 20, 2026 press release, is backed by HICO Investment Group and Archangel Ventures. The capital injection is designed to leverage the United States Federal Aviation Administration (FAA) Modernization of Special Airworthiness Certification (MOSAIC) rules, which established a new regulatory pathway for private eVTOL ownership.

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Capitalizing on MOSAIC regulations

The eVTOL industry has predominantly focused on commercial air taxi operations, a sector requiring extensive capital and complex regulatory approvals. Skyfly has opted for a different market segment by targeting private ownership. This strategy relies heavily on the FAA MOSAIC reforms, which came into force in July 2026.

The MOSAIC rules rewrote the Light Sport Aircraft category to include electric propulsion, multi-motor designs, and vertical take-off capabilities. This regulatory shift created a direct certification pathway for personal eVTOLs like the Axe.

“This investment gives us the resources to take the Axe from a flying prototype to a certified aircraft in customers’ hands. The FAA’s MOSAIC rules have opened a route to market that simply did not exist for electric aircraft before, and the Axe was designed for exactly this category. HICO and Archangel understood that timing, and their backing lets us move at the pace the opportunity demands: completing certification and standing up series production.”

The statement was provided by Michael Thompson, CEO of Skyfly Technologies, in the company’s funding announcement.

Axe eVTOL specifications and testing progress

The Axe is a two-seat electric aircraft designed to minimize mechanical complexity. It utilizes eight fixed-angle electric motors for vertical lift and fixed wings for forward flight, eliminating the need for tilting motors or rotary wings. According to company specifications, the aircraft features a cruising speed of 100 mph, a range of 100 miles, and a payload capacity of 200 kg (440 pounds). Total flight time is estimated between 60 and 90 minutes.

Skyfly has completed over 100 piloted prototype flights since the pre-production model first flew in March 2025. The testing program included Europe‘s first airfield-to-airfield eVTOL flight. The company established a dedicated flight test team in the United States in 2025 and showcased the aircraft at EAA AirVenture Oshkosh in both 2025 and 2026. The Axe currently holds experimental flight permits in both the UK and the US.

Chris Hartnoll, Managing Director of HICO Investment Group, noted the efficiency of the development program. He stated that the engineering team had successfully designed and built a new aircraft from scratch and is now navigating a brand-new certification pathway.

Dual-use technology and the Longbow variant

The inclusion of Archangel Ventures, a defense-focused fund, highlights the dual-use potential of Skyfly’s technology. Alongside the passenger-carrying Axe, the company is developing the Longbow, a hybrid-electric unmanned variant tailored for government and military applications.

Skyfly unveiled its first hybrid propulsion system in July 2026. The Longbow variant is projected to offer an extended range of over 347 nautical miles, addressing military requirements for runway-independent cargo resupply and surveillance operations.

Nicholas Nelson, General Partner at Archangel Ventures, stated that the Longbow addresses a clear requirement for unmanned systems capable of moving meaningful payloads over significant distances without relying on traditional runway infrastructure.

Skyfly’s path to production

Founded in 2019 and headquartered in Thorpe Mandeville, UK, Skyfly Technologies is led by Chief Technology Officer Dr. William Brooks. Brooks brings over three decades of experience in light aircraft development and has certified more than 2,000 aircraft currently in service.

With the $10 million seed funding secured, Skyfly is scaling its operations and production capabilities across the UK and the US. The company currently has 61 private customers on its order book for the Axe eVTOL and is targeting 2027 for its first customer deliveries.

AirPro News analysis

We view Skyfly’s strategy as a pragmatic departure from the broader eVTOL industry consensus. By targeting the FAA MOSAIC Light Sport Aircraft category rather than pursuing commercial Part 135 air taxi certification, the company bypasses the billion-dollar capital requirements that have constrained its competitors. The MOSAIC rules provide a defined, achievable regulatory target for a privately owned, multi-motor electric aircraft.

Additionally, the development of the Longbow variant provides a critical hedge. The consumer eVTOL market remains unproven, but military demand for runway-independent, medium-payload logistics drones is immediate and well-funded. Securing backing from a defense-focused investor like Archangel Ventures suggests Skyfly is positioning itself to generate near-term defense revenue while the private ownership market matures.

Photo Credit: Skyfly Technologies

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Signature Aviation and UrbanV Launch US AAM Joint Venture

Signature Aviation and UrbanV launch SUVA, a joint venture to build a nationwide eVTOL infrastructure network across the US.

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Signature Aviation and UrbanV Launch US AAM Joint Venture

Signature Aviation and Italian vertiport operator UrbanV have formally launched a joint venture to develop and operate a nationwide Advanced Air Mobility (AAM) infrastructure network across the United States.

Announced on October 21, 2026, during the NBAA-BACE convention, the Signature UrbanV Alliance (SUVA) aims to transition electric vertical takeoff and landing (eVTOL) operations from isolated test sites to a scalable, agnostic network. According to a press release issued by Signature Aviation, the partnership will initially integrate electric aircraft operations into the company’s existing terminal footprint before expanding to purpose-built facilities.

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Transitioning from test sites to scalable networks

The SUVA joint venture, first proposed in an initial agreement on June 12, 2025, is designed to provide an agnostic infrastructure platform. Rather than catering to a single aircraft manufacturer, the network will support multiple eVTOL and electric conventional takeoff and landing (eCTOL) operators.

The alliance plans a phased rollout. Initial operations will focus on integrating charging systems, aircraft handling, and passenger services into existing Signature Aviation facilities. As commercial demand scales, SUVA intends to construct dedicated, purpose-built vertiports in urban and regional destinations to create a connected on-airport and off-airport network.

“Advanced Air Mobility will not be enabled by individual sites alone. It will require connected infrastructure that is ready ahead of large-scale commercial operations and links airports with the places people want to reach. SUVA enables us to turn that vision into a scalable network, combining existing aviation assets with dedicated vertiports as the market develops.”

The statement was provided by Massimiliano Pane, Executive Director of UrbanV.

Leveraging existing aviation real estate

The joint venture combines UrbanV’s dedicated vertiport development experience with Signature Aviation’s extensive fixed-base operator (FBO) footprint. Signature operates the world’s largest network of Private jets terminals, with over 200 locations globally. The multinational aviation services company, headquartered in Orlando, Florida, was taken private in June 2021 following a $4.7 billion acquisition by a consortium that included Blackstone, Global Infrastructure Partners, and Cascade Investment.

UrbanV, headquartered in Rome, Italy, was established by European airport operators Aeroporti di Roma, SAVE Group, Aeroporto di Bologna, and Aéroports de la Côte d’Azur. The company currently operates the UV-0 test vertiport at Rome Fiumicino Airport (FCO), which hosted Italy’s first crewed eVTOL public test flight in October 2022.

Derek DeCross, Chief Commercial Officer at Signature Aviation, noted that the alliance allows the company to shape both the physical infrastructure and the passenger experience for the AAM sector.

“Through the Signature UrbanV Alliance, we have an opportunity to help shape not only the infrastructure behind Advanced Air Mobility, but the guest experience itself, leveraging our network, operational expertise and commitment to hospitality to create a more connected, convenient and elevated journey for travelers.”

Regulatory alignment and market context

The formal launch of SUVA aligns with advancing regulatory frameworks for AAM infrastructure in the United States. On October 22, 2026, the Federal Aviation Administration (FAA) released updated draft design standards for vertical lift infrastructure. The FAA documentation addresses core layout requirements, lighting, charging systems, and the integration of vertiports at existing airports.

SUVA will collaborate with airports, municipalities, real estate owners, and regulatory bodies to establish the technical and commercial frameworks required for widespread electric aircraft deployment.

AirPro News analysis

The Advanced Air Mobility sector has long faced a structural challenge regarding the simultaneous development of certified aircraft and the infrastructure required to operate them. By utilizing Signature Aviation’s existing real estate portfolio, SUVA bypasses the immediate need for complex greenfield vertiport construction in dense urban areas. This strategy offers a pragmatic bridge to early commercial eVTOL operations. The timing of the launch also positions the joint venture to directly apply the FAA’s newly updated draft design standards, ensuring that initial retrofits at existing FBOs align with the agency’s evolving regulatory expectations.

Photo Credit: Signature Aviation

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FAA Grants First eVTOL Market Survey Certificate to BETA Technologies

BETA Technologies receives the first FAA market survey authorization for an eVTOL aircraft, the ALIA A250, ahead of full type certification.

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FAA Grants First eVTOL Market Survey Certificate to BETA Technologies

The Federal Aviation Administration (FAA) has granted BETA Technologies a Special Airworthiness Certificate for market surveys for its ALIA VTOL (A250) aircraft, marking the first time an electric vertical takeoff and landing (eVTOL) aircraft has received this specific authorization.

Announced in a company press release on October 21, 2026, the certification allows BETA to conduct flight operations with prospective customers, operators, and stakeholders. The authorization expands the geographic scope of the manufacturer’s operations and represents a regulatory milestone toward full type certification and commercial adoption in the Advanced Air Mobility (AAM) sector.

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Inaugural flight and operational scope

On October 20, 2026, BETA conducted the first flight under the new authorization. The A250 aircraft departed from Plattsburgh International Airport (PBG) in New York and landed at Patrick Leahy Burlington International Airport (BTV) in Vermont. The flight covered a distance of 34 nautical miles and lasted 20 minutes.

Kyle Clark, Founder and Chief Executive Officer of BETA Technologies, stated that the authorization brings vertical flight closer to practical application and builds on the company’s previous testing milestones.

“Operators can now experience the VTOL firsthand and begin planning how it fits into their businesses, from connecting communities to moving people and goods at a lower cost,” Clark said. “This is an important step toward commercial adoption, and we’re grateful to the FAA for developing the regulatory framework that makes these operations possible.”

U.S. Transportation Secretary Sean P. Duffy called the certification a critical step toward enabling the future of flight in the United States. FAA Administrator Bryan Bedford emphasized the agency’s commitment to integrating new aircraft into the national airspace while maintaining rigorous safety standards.

Aircraft specifications and testing history

The ALIA VTOL (A250) is an all-electric aircraft featuring dual pilot controls. It is designed to accommodate up to five passengers and carry a minimum of 1,200 pounds of cargo. The A250 shares a common architecture, flight control computers, batteries, and propulsion systems with BETA’s conventional takeoff and landing aircraft, the ALIA CTOL (CX300).

BETA previously secured a similar market survey authorization for the CX300. Combined, the manufacturer’s CTOL and VTOL platforms have accumulated more than 250,000 nautical miles of flight time. The company completed the first crewed electric VTOL transition flight in 2024.

Expanding integration and emergency response testing

The market survey authorization follows a series of operational demonstrations by BETA Technologies. On October 7, 2026, the company completed operations in the Utah eVTOL Integration Pilot Program (eIPP), focusing on radiopharmaceutical delivery and treatment support.

Prior to that, on September 24, 2026, BETA partnered with Metro Aviation and Washington County EMS to fly an electric aircraft in an emergency response demonstration in Texas. The FAA and the U.S. Department of Transportation have selected BETA to participate in seven of the eight eIPP programs alongside government and operator partners. According to the company, this represents the highest participation rate of any original equipment manufacturer (OEM) in the initiative.

Regulatory pathway and market context

The FAA issued the Special Airworthiness Certificate for market surveys under Part 21 of its regulations. This framework allows manufacturers to demonstrate aircraft capabilities to potential buyers and operators before achieving full type certification.

BETA Technologies (NYSE: BETA), headquartered in South Burlington, Vermont, designs and manufactures electric aircraft alongside advanced electric propulsion and charging systems. The company is currently working toward full FAA type certification and commercial operations for the A250. The ability to conduct customer demonstration flights is intended to accelerate market adoption within the broader AAM industry.

AirPro News analysis

The FAA’s decision to grant a market survey authorization for an eVTOL aircraft marks a distinct shift in the regulatory treatment of Advanced Air Mobility platforms. Until now, eVTOL manufacturers have largely been restricted to experimental research and development flights, limiting prospective operators to simulators or ground-based evaluations. By allowing BETA to fly the A250 with actual stakeholders, the FAA is signaling increased confidence in the safety and maturity of the aircraft’s design.

We view this as a critical commercial catalyst. The ability to demonstrate real-world payload, noise profiles, and operational economics in flight will likely accelerate firm orders and infrastructure planning among early AAM adopters, setting a precedent that other eVTOL developers will undoubtedly seek to follow as they mature their own flight test programs.

Photo Credit: BETA Technologies

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