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Airbus Validates Wake Energy Retrieval in Transatlantic Flight Trials

Airbus and partners demonstrate Wake Energy Retrieval, showing potential 5% fuel savings in transatlantic trials with 75% success rate.

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This article is based on an official press release from Airbus and the SESAR Joint Undertaking.

Airbus and Partners Validate “Wake Energy Retrieval” Operations in Transatlantic Trials

On February 25, 2026, Airbus and a consortium of airline and air traffic management partners announced significant progress in the effort to reduce aviation emissions through biomimicry. The GEESE (Gain Environmental Efficiency by Saving Energy) project has successfully validated the operational procedures required for Wake Energy Retrieval (WER), a technique designed to save up to 5% in fuel consumption on long-haul flights.

According to the official announcement from Airbus, the milestones were achieved during a series of transatlantic flight trials conducted in late 2025. These trials demonstrated that commercial aircraft can be reliably paired in mid-flight to fly in formation, mimicking the energy-saving V-formation used by migrating geese. The project focuses specifically on the Air Traffic Management (ATM) challenges of coordinating such maneuvers without disrupting standard airspace operations.

The successful validation of these procedures marks a critical step toward commercial deployment, proving that existing navigation technology and new coordination tools can bring two independent aircraft to a precise rendezvous point in the middle of the ocean.

Trial Results: Precision and Potential Savings

The recent trials involved eight specific flights over the North Atlantic, designed to test the feasibility of guiding two aircraft from different departure points to a single geographic location at the exact same time. Airbus reports that the trials achieved a 75% success rate, with the aircraft reaching their designated rendezvous positions as scheduled.

While these specific trials maintained vertical separation, meaning the aircraft flew at different altitudes for safety reasons, data analysis projected the efficiency gains that would have occurred had the aircraft engaged in actual formation flying.

“Data analysis revealed that if the six successful pairings had engaged in actual Wake Energy Retrieval… they would have saved a total of 12 tonnes of fuel.”

This equates to approximately 2 tonnes of fuel saved per flight. The concept relies on a “follower” aircraft positioning itself approximately 1.5 to 2 nautical miles (3 km) behind a “leader” aircraft. In this position, the follower rides the smooth updraft of air, or wake, created by the leader, generating “free lift” that allows the trailing aircraft to reduce engine thrust.

The Four-Step Coordination Process

A primary goal of the GEESE project is to establish a safe, repeatable process for Air Traffic Control (ATC) and airlines to manage these pairings. The trials validated a four-step operational workflow:

  1. Trajectory Computation: The Airbus Pairing Assistance Tool (PAT) calculates optimized flight paths and rendezvous instructions in real-time.
  2. Operational Assessment: Dispatchers, flight crews, and ATC centers review the proposed trajectories to ensure they meet all safety and operational standards.
  3. Visibility & Monitoring: A dedicated interface at the EUROCONTROL Innovation Hub allows all stakeholders to monitor the status of the pairing decision.
  4. Commitment: Flight crews activate a cockpit function to “commit” to the rendezvous, adjusting speeds to ensure simultaneous arrival at the meeting point.

This process confirmed that the Pairing Assistance Tool (PAT) can effectively guide aircraft to a merge point while maintaining standard safety protocols.

AirPro News Analysis

The GEESE project represents a shift in how the aviation industry approaches efficiency. Historically, fuel savings have been driven by hardware improvements, lighter materials and more efficient engines. Wake Energy Retrieval, however, is a software and operations-driven solution.

Achieving a 5% reduction in fuel burn without modifying the airframe or engines is substantial. For context, a typical engine upgrade on a widebody aircraft might yield a 10-15% improvement but requires billions in development and years of certification. A 5% gain purely through formation flying offers a complementary “operational upgrade” that could be deployed alongside new engine technologies. The challenge remains regulatory: moving from vertically separated trials to actual close-formation flying (1.5nm separation) will require rigorous safety cases to satisfy global aviation authorities.

Project Background and Partners

The GEESE project is an evolution of Airbus’s earlier “fello’fly” demonstrator, which focused on the aerodynamics and flight control systems required for formation flying. GEESE expands this scope to address the logistical challenge of integrating these formations into global air traffic.

The collaboration involves a wide range of industry stakeholders, including:

  • Lead: Airbus
  • Airlines: Air France, Delta Air Lines, French bee, Virgin Atlantic
  • Air Navigation Service Providers (ANSPs): AirNav Ireland, DSNA (France), NATS (UK), EUROCONTROL
  • Technology Partners: Indra, ENAC, CIRA, DLR, Frequentis, Boeing

Airbus has stated that the project targets full commercial deployment by the mid-next decade. The next phase of development will focus on regulatory approval to allow aircraft to fly at the same altitude with reduced separation, a prerequisite for realizing the fuel savings demonstrated in the simulations.

Sources: Airbus | SESAR Joint Undertaking

Photo Credit: Airbus

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Archer Aviation Launches No Roads eVTOL Tour Ahead of LA28

Archer Aviation begins its No Roads flight tour in Northern California, expanding to LA, Texas, and Florida ahead of the 2028 Olympics.

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Archer Aviation Inc. announced the launch of its “No Roads” flight tour on September 3, 2026, initiating a multi-state demonstration of its Midnight electric vertical takeoff and landing (eVTOL) aircraft. The tour aims to introduce the public to electric air taxi operations ahead of the 2028 Los Angeles Olympic Games and fulfills the company’s role in a federal integration initiative.

In a press release issued on September 3, 2026, the manufacturer detailed plans to conduct city-to-city flights starting in Northern California, closely coordinated with the Federal Aviation Administration (FAA). The campaign follows a highly active testing period in August 2026, during which Archer completed more than 70 test flights, including a piloted roundtrip journey between Salinas Municipal Airport (SNS) and Monterey Regional Airport (MRY).

Expanding the flight test footprint

The initial phase of the tour will focus on the San Francisco Bay Area and surrounding regions. Planned flight locations include Monterey, Hollister, San Martin, San Jose, Oakland, and San Francisco. Following the Northern California demonstrations, Archer intends to expand the tour to the Los Angeles basin, Texas, and Florida.

The flights are designed to showcase the operational capabilities of the piloted, four-passenger Midnight aircraft. Archer stated the tour will highlight the aircraft’s low noise profile, zero operating emissions, and ability to complete routes in 10 to 20 minutes that typically require an hour or more by car.

“I’ve talked a lot about the ‘Waymo Moment for air taxis,’ the chance for us to get communities more comfortable with this tech,” said Adam Goldstein, Founder and CEO of Archer. “This is the beginning of that story and our biggest step yet toward making air taxis an everyday reality in cities across America. The ‘No Roads’ Tour is how we bring that narrative to life while also preparing for what’s next: flights in multiple states under the White House’s pilot program, and the first Midnight flights in Los Angeles ahead of LA28.”

Federal integration and infrastructure development

The multi-state tour aligns with Archer’s participation in the White House’s eVTOL Integration Pilot Program (eIPP). In March 2026, the United States Department of Transportation (DOT) and the FAA selected Archer’s partners in New York, Florida, and Texas to join the initiative. The eIPP is designed to establish an operational playbook for the safe and scalable deployment of electric air taxis within the national airspace system.

Alongside the flight demonstrations, Archer plans to unveil new charging infrastructure across multiple states. This rollout is part of the America’s Consortium for Electric Skyways (ACES) program, a collaborative effort involving Archer, BETA Technologies, and Macquarie Capital.

The Los Angeles segment of the tour will serve as direct preparation for the 2028 Olympic Games. Archer is designated as the Official Air Taxi Provider for the LA28 Games, where it plans to operate a commercial network transporting attendees across the congested Southern California region.

AirPro News analysis

We view the “No Roads” tour as a critical transition phase for Archer Aviation, shifting the focus from pure technical certification to public acceptance and operational integration. While completing 70 test flights in a single month demonstrates growing maturity in the Midnight platform, flying visible, city-to-city routes in congested airspace like the San Francisco Bay Area and Los Angeles basin presents a different set of challenges.

Coordinating these flights with the FAA will likely serve as a real-world stress test for air traffic control integration. The concurrent rollout of ACES charging infrastructure indicates that Archer and its partners recognize that aircraft certification alone is insufficient without the ground network required to sustain high-frequency commercial operations by 2028.

Sources: Archer Aviation Inc.

Photo Credit: Archer Aviation

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Horizon Aircraft Begins FIKI Ice Protection Testing for Cavorite X7

Horizon Aircraft starts wind tunnel ice protection testing for the Cavorite X7 eVTOL, backed by a $10.5M INSAT-funded project.

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New Horizon Aircraft Ltd. has commenced wind tunnel testing of ice protection technologies for its Cavorite X7 hybrid-electric vertical takeoff and landing (eVTOL) aircraft, marking a critical step toward achieving Flight Into Known Icing (FIKI) certification. The testing, which began in July 2026 in Toronto, Ontario, aims to validate systems that will allow the aircraft to operate reliably in harsh winter conditions.

In a press release issued on September 1, 2026, Horizon Aircraft announced the testing milestone, which is being conducted in partnership with the Flight Test Centre of Excellence (3C) and the University of Toronto (UofT). The research is supported by a $10.5 million project funded by the Initiative for Aerospace Innovation and Training (INSAT). Securing FIKI certification would enable the Cavorite X7 to service remote northern communities year-round, overcoming the weather-related grounding limitations frequently experienced by traditional helicopters.

Advancing all-weather eVTOL capabilities

The initial phase of wind tunnel testing focuses on small coupon samples featuring ice protection technologies developed by the University of Toronto. These systems are designed specifically to handle the aerodynamic and environmental challenges of hybrid-electric vertical flight in freezing conditions.

Horizon Aircraft Co-Founder and Chief Executive Officer Brandon Robinson stated that the Cavorite X7 was designed from its inception to handle Canadian winters to benefit both remote communities and aircraft operators.

“3C’s Certification expertise and UofT’s technology are supporting our progress toward bringing a certified all-weather X7 to market. Communities serviced by X7 aircraft will have greater access to the critical services they need, and X7 operators will experience higher aircraft utilization and profit margins,” Robinson said.

Certification pathway and recent program milestones

Achieving FIKI certification is a complex regulatory hurdle that few advanced air mobility (AAM) developers have actively targeted in their initial design phases. To navigate the Transport Canada (TC) certification process, Horizon Aircraft is leveraging the mentorship of 3C.

Dr. John Maris, Founder of 3C, emphasized the necessity of accounting for harsh climates to unlock the true potential of global air vehicle operations. He noted that the combination of the aircraft’s design, 3C’s regulatory guidance, and the university’s technology positions Horizon Aircraft to provide a regional air mobility solution that traditional rotorcraft struggle to match.

The start of ice protection testing follows a series of supply chain and commercial milestones for the Cavorite X7 program. On July 9, 2026, Horizon Aircraft selected BETA Technologies to supply the fly-by-wire advanced flight control computers and customized software for the aircraft. Shortly after, on July 21, 2026, the manufacturer secured a Letter of Intent (LOI) with Australian operator V-Star Powered Lift Aviation for the purchase of up to 100 Cavorite X7 aircraft, an agreement valued at approximately $600 million.

AirPro News analysis

We view Horizon Aircraft’s explicit pursuit of FIKI certification as a key differentiator in the crowded eVTOL market. Most developers in the advanced air mobility sector are optimizing their initial designs for temperate, urban environments to simplify their path to type certification. By tackling icing conditions early in the development cycle, Horizon Aircraft is taking on significant technical and regulatory risk upfront. However, if successful, this strategy could secure a distinct competitive advantage in utility, medical evacuation, and regional transport markets where dispatch reliability in adverse weather is a strict operational requirement.

Sources: New Horizon Aircraft Ltd. (Ice Protection Testing)

Photo Credit: New Horizon Aircraft

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Tata Elxsi and Sarla Aviation Partner on Shunya eVTOL

Tata Elxsi and Sarla Aviation sign MoU to co-develop Shunya, India’s first indigenous 7-seat eVTOL air taxi.

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Tata Elxsi and Sarla Aviation signed a Memorandum of Understanding (MoU) on September 1, 2026, to co-develop “Shunya,” a seven-seat electric vertical take-off and landing (eVTOL) aircraft positioned as India’s first indigenous air taxi.

Announced in a joint press release from the companies’ Bengaluru headquarters, the Partnerships pairs Sarla Aviation’s aircraft design with Tata Elxsi’s aerospace engineering and certification expertise. The collaboration aims to achieve a first flight for the Shunya aircraft within 18 to 24 months, aligning with Indian government targets for advanced air mobility operations.

Engineering and certification pathway

Building a clean-sheet passenger aircraft requires extensive systems integration and regulatory compliance. Under the MoU, Tata Elxsi will provide engineering support across Avionics, Software integration, and the certification process.

Sarla Aviation Co-Founder & CEO Adrian Schmidt highlighted the necessity of established aerospace partnerships for the Startups, which was founded in October 2023.

“Building a new class of aircraft is not simply an engineering challenge. It requires bringing together people and organisations willing to solve problems that have never been solved before in this market. Tata Elxsi’s experience in complex aerospace systems gives us access to capabilities that are critical as we take Shunya from concept to reality,” Schmidt stated.

Tata Elxsi CEO & Managing Director Manoj Raghavan noted that the shift in transportation requires both engineering innovation and ecosystem readiness, adding that the vision for Shunya reflects the ambition driving the advanced air mobility sector.

Aircraft specifications and flight testing

The Shunya aircraft is designed to carry six passengers and one pilot, with a projected flight range exceeding 300 kilometers. The platform is intended to serve urban logistics, air ambulance services, and defense applications in addition to passenger transport.

Sarla Aviation has already completed a flight test campaign for its initial technology demonstrator, designated Sylla 1.0. The 700-kilogram class eVTOL logged over 500 tests and 18 hours of flight time. The company is currently developing the Sylla 2.0 demonstrator to test controlled transitions between vertical lift and wing-borne forward flight before finalizing the full-scale Shunya design.

Jayaraj Rajapandian, Head of Aerospace at Tata Elxsi, described the project as a milestone for domestic aerospace capabilities.

“Shunya is a reminder of how quickly aerospace innovation is evolving in shaping the Technology landscape in India. As aircraft become increasingly fly-by-wire, electrified and connected, entirely new opportunities are emerging to rethink how people, goods and critical services move,” Rajapandian said.

Regulatory support and market timeline

The development of Shunya coincides with increased governmental support for Electric-Aviation in India. In August 2026, Union Civil Aviation Minister Ram Mohan Naidu visited Sarla Aviation’s headquarters. During the visit, Naidu highlighted that the company had received Design Organisation Approval from the Directorate General of Civil Aviation (DGCA).

The minister also reiterated the government’s objective to see electric air taxis operating within India by 2028. This regulatory backing provides a framework for Sarla Aviation and Tata Elxsi as they work toward their 18 to 24-month target for Shunya’s inaugural flight.

AirPro News analysis

We view the partnership between a rapid-prototyping startup and an established engineering firm as a necessary step for India’s indigenous eVTOL ambitions. While Sarla Aviation has demonstrated hardware progress with the Sylla 1.0 test campaign, transitioning from a 700-kilogram demonstrator to a certified seven-seat passenger aircraft introduces exponential regulatory complexity. Tata Elxsi’s experience with aerospace software and DGCA certification processes will be critical in bridging the gap between experimental flight testing and commercial type certification. The 18 to 24-month timeline to first flight is aggressive but aligns with the Indian government’s push to establish a domestic advanced air mobility ecosystem by 2028, reducing reliance on foreign aircraft manufacturers.

Sources: Tata Elxsi via PR Newswire

Photo Credit: Sarla Aviation

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