Electric Aircraft
Vertical Aerospace VX4 Completes First Wing-Borne Flight Test
Vertical Aerospace’s VX4 eVTOL completes first wing-borne flight, advancing toward 2028 certification for sustainable urban air mobility.
Vertical Aerospace’s VX4 Achieves Milestone with First Wing-Borne Flight
The electric vertical take-off and landing (eVTOL) sector continues to gain momentum, with Vertical Aerospace marking a major milestone in its development roadmap. On 22 May 2025, the UK-based aerospace company successfully completed the first wing-borne flight of its VX4 prototype. This flight not only demonstrated the aircraft’s ability to transition from vertical to conventional flight but also validated critical aspects of its design and performance.
As the global aviation industry shifts toward sustainable, zero-emission solutions, eVTOLs are emerging as a promising alternative for short-haul urban and regional transport. Vertical Aerospace’s VX4 is designed to meet this demand with a focus on safety, efficiency, and environmental responsibility. The successful wing-borne flight marks a pivotal step in the VX4’s path to certification and commercial deployment, positioning the company among the frontrunners in the urban air mobility (UAM) race.
Understanding the VX4 and Its Flight Test Program
Design and Capabilities of the VX4
The VX4 is an all-electric aircraft designed to carry four passengers and a pilot. With a projected range of approximately 100 miles (160 km) per charge and a cruise speed of around 130 knots (240 km/h), the VX4 aims to offer a viable alternative to ground-based transport in congested urban areas. Its hybrid design allows for both vertical take-off and landing (VTOL) and fixed-wing cruise, combining the benefits of helicopters and airplanes.
Key features of the VX4 include low noise emissions, zero operational emissions, and compliance with stringent aviation safety standards. The aircraft’s propulsion system is powered by electric motors, and its aerodynamic design supports efficient wing-borne flight, which is essential for extending range and reducing energy consumption.
Vertical Aerospace plans to conduct a series of test flights in different configurations. The current phase involves conventional take-off and landing (CTOL) flights, with around a dozen such sorties planned before transitioning to full VTOL testing. These tests are crucial for collecting performance data and refining digital models used in the aircraft’s development.
“The VX4 handled beautifully, and the transition to fixed-wing flight was smooth and stable, giving us confidence in the aircraft’s design and control systems.”
– Si Davies, Chief Test Pilot, Vertical Aerospace
Details of the Wing-Borne Flight
The milestone flight took place at Vertical Aerospace’s Kemble test facility in southwest England. According to chief test pilot Si Davies, the VX4 rotated at 85 knots and cruised at approximately 100 knots during the flight, which ventured beyond the airfield for the first time. The approach was performed at 95 knots, and future tests are expected to push cruise speeds to 120 knots, nearing the 130-knot target for the production model.
Davies praised the aircraft’s responsiveness and natural handling, noting that the propulsion system performed as predicted. “It is very responsive in acceleration along the runway, it got into the air very quickly indeed,” he said. The aircraft’s performance during this flight validated pre-flight modeling related to drag and motor output, reinforcing confidence in the VX4’s design.
Leading up to the wing-borne flight, the team conducted extensive low-speed taxi tests, including multiple runs at speeds just below take-off velocity. These preparations were essential for ensuring readiness and safety, both for the aircraft and the test crew.
Next Steps in the Flight Test Campaign
Following the initial wing-borne flight, Vertical Aerospace plans to expand the flight envelope with additional sorties in CTOL mode. These will incrementally increase flight duration and speed to further validate battery and motor performance under varied conditions. The goal is to build a robust dataset that supports eventual certification and commercial readiness.
The next major milestone in the test program is the transition from thrust-borne (hover) to wing-borne flight while operating in full VTOL mode. This complex maneuver represents the final phase of the flight-test plan and is expected to occur in the second half of 2025. Achieving a seamless transition is critical for demonstrating the VX4’s operational versatility.
In parallel, Vertical Aerospace is preparing a second VX4 prototype for flight testing. This aircraft will join the test fleet in the coming months, allowing the company to accelerate data collection and refine its models. The company has stated a target certification date of 2028, aligning with evolving regulatory frameworks for eVTOL aircraft.
Industry Implications and Competitive Landscape
Urban Air Mobility and Market Context
The VX4’s progress reflects broader trends in the eVTOL industry, which is projected to become a multi-billion-dollar market by 2030. Factors driving this growth include urban congestion, environmental concerns, and advancements in electric propulsion and autonomous flight technologies. Companies like Joby Aviation, Lilium, and Archer Aviation are also racing to bring certified eVTOLs to market, creating a competitive yet collaborative ecosystem.
Vertical Aerospace’s approach emphasizes certification under existing aviation regulations, working closely with the UK Civil Aviation Authority (CAA). This strategy may offer a more streamlined path to market compared to companies pursuing novel certification categories. The CAA’s approval of the recent test flight underscores the regulator’s confidence in the VX4’s development process.
Successful demonstration of wing-borne flight is a key differentiator in the eVTOL space. While many prototypes can hover, transitioning to efficient fixed-wing flight is essential for achieving the range and speed necessary for commercial viability. The VX4’s hybrid design addresses this challenge directly, offering a blend of performance and operational flexibility.
Technical and Operational Challenges
Despite recent successes, challenges remain. Battery energy density continues to limit range and payload capacity for electric aircraft. Vertical Aerospace must also ensure that its aircraft can operate safely in diverse weather conditions and integrate seamlessly into existing air traffic management systems.
Another hurdle is public acceptance and infrastructure readiness. Urban air mobility requires dedicated vertiports, charging infrastructure, and robust flight planning tools. While technology is advancing rapidly, the supporting ecosystem must evolve in parallel to enable widespread adoption.
Vertical Aerospace is addressing these issues through partnerships and simulations. The company is leveraging digital twin technology to model real-world performance and collaborating with stakeholders to plan future operational scenarios. These efforts aim to de-risk deployment and build confidence among regulators, operators, and the public.
Conclusion
The first wing-borne flight of Vertical Aerospace’s VX4 prototype marks a significant achievement in the journey toward sustainable urban air mobility. The successful transition from ground to fixed-wing flight validates the aircraft’s design and sets the stage for more complex test scenarios. With additional flights planned and a second prototype on the way, Vertical is steadily building momentum toward certification.
Looking ahead, the VX4’s development will be closely watched as a bellwether for the eVTOL industry. As regulatory frameworks solidify and infrastructure begins to take shape, aircraft like the VX4 could redefine short-haul transport in cities worldwide. The combination of zero emissions, reduced noise, and operational flexibility makes eVTOLs a compelling solution for the future of mobility.
FAQ
What is the VX4?
The VX4 is an electric vertical take-off and landing (eVTOL) aircraft developed by Vertical Aerospace. It is designed to carry four passengers and a pilot over short distances with zero emissions.
What was significant about the recent flight?
The VX4 completed its first wing-borne flight, transitioning from ground take-off to conventional fixed-wing flight. This validated key aspects of its design and performance.
When is the VX4 expected to be certified?
Vertical Aerospace is targeting certification for the VX4 in 2028, pending successful completion of flight testing and regulatory approvals.
How does the VX4 compare to other eVTOLs?
The VX4 combines vertical take-off capabilities with efficient fixed-wing cruise, offering a balance of range, speed, and operational flexibility. It competes with models from Joby Aviation, Lilium, and others.
What are the next steps in the VX4 test program?
Vertical Aerospace will conduct additional CTOL flights before transitioning to full VTOL testing, including thrust-to-wing-borne transitions later in 2025.
Sources
Photo Credit: VerticalAerospace
Electric Aircraft
SkyDrive SD-05 eVTOL Design Concept and 2028 Service Plans
SkyDrive publishes design paper on its 12-rotor SD-05 eVTOL, targeting urban operations and 2028 commercial entry.
Japanese advanced air mobility developer SkyDrive Inc. published a technical design concept paper on September 24, 2026, outlining the engineering rationale behind its compact, 12-rotor electric vertical takeoff and landing (eVTOL) aircraft.
Announced via a company press release, the paper, titled “The eVTOL Safety Dilemma in Congested Urban Environments,” argues that multi-rotor architectures offer superior safety and efficiency for short-range urban operations compared to winged eVTOL configurations like tilt-rotor or lift-and-cruise designs.
Optimizing for low disk loading
SkyDrive designed its SD-05 model specifically for “last-mile” segments within a 30-kilometer (18-mile) radius of city centers. To operate safely in space-constrained urban settings, the manufacturer opted for a 12-rotor configuration. According to the design paper, this layout secures a large total disk area, achieving low disk loading.
Low disk loading improves hovering efficiency and power density. The company stated that this multi-rotor approach provides critical safety redundancy, ensuring single-failure tolerance during operations over densely populated areas. SkyDrive aims to provide “the most accessible air mobility, allowing people to take off directly from the city,” according to the press release.
Global expansion and certification progress
The publication of the design concept follows a series of regulatory and commercial milestones for the manufacturer, which targets a 2028 entry into commercial service. SkyDrive began production of its commercial eVTOL product at a Suzuki Motor Corporation plant in March 2024.
On July 16, 2026, the company commenced formal familiarization meetings with the U.S. Federal Aviation Administration (FAA) and the Japan Civil Aviation Bureau (JCAB) to advance its type certification process.
The manufacturer has also expanded its prospective operational footprint through recent international agreements. On August 17, 2026, SkyDrive signed a Letter of Intent (LOI) with Gold Coast Helitours in Australia. This was followed by an August 25, 2026, partnership announcement with Air India and Suzuki to evaluate medical logistics routes in India. Most recently, on September 17, 2026, SkyDrive signed a memorandum of understanding (MOU) with South Korean operator Verty Co. Ltd. to prepare for commercial deployment.
AirPro News analysis
We observe a clear strategic divergence in the eVTOL sector between manufacturers pursuing winged lift-and-cruise or tilt-rotor designs and those committing to pure multi-rotor architectures. While winged designs from competitors target regional connectivity with higher cruise speeds and longer ranges, SkyDrive is optimizing strictly for the urban core. By eliminating the aerodynamic complexities of transitioning from vertical to forward wing-borne flight, the company may face a more straightforward path to type certification. However, this design choice inherently limits the aircraft to short-range, intra-city missions, requiring a high-volume operational model to achieve commercial viability.
Sources: SkyDrive Inc. (via Business Wire)
Photo Credit: SkyDrive
Electric Aircraft
NOEMI Aerospace Selects Syensqo Composites for TAC-1 Wing
NOEMI Aerospace picks Syensqo MTM 45-1 and AeroPaste for its 21-meter all-electric amphibious aircraft wing structure.
NOEMI Aerospace has selected advanced materials manufacturer Syensqo to supply carbon fiber composites and structural adhesives for its nine-passenger all-electric amphibious aircraft.
The agreement, announced in a September 10, 2026, press release, secures out-of-autoclave materials critical for fabricating the aircraft’s 21-meter single-span wing structure. The selected materials feature existing National Center for Advanced Materials Performance (NCAMP) data, which NOEMI intends to leverage for its Federal Aviation Administration (FAA) certification program.
Composite materials for single-span wing construction
Syensqo will provide its MTM® 45-1 carbon fiber prepreg and AeroPaste® structural paste adhesive for the airframe and wing assembly. NOEMI Aerospace requires out-of-autoclave curing capabilities to accommodate the physical dimensions of the aircraft’s wing skins and spars, which the company plans to manufacture as a continuous 21-meter structure.
Simon Bendrey, Chief Engineer at NOEMI Aerospace, stated that the company needed a primary structure-capable material with proven performance to support this manufacturing approach.
“With Syensqo’s MTM® 45-1, a primary structure capable material with FAA approval and independently verified NCAMP data, we have a solution that will support our certification approach while helping us achieve the low structural weight required for our first prototype aircraft,” Bendrey said.
Bendrey added that the company will utilize the AeroPaste® structural adhesive to bond the wing components. Gerald Perrin, EMEA Sales Director for Syensqo Composite Materials, noted that the selection reflects the aerospace heritage of the company’s product line and its alignment with Electric-Aviation development.
TAC-1 prototype and multi-mission development
The materials partnership advances the construction of NOEMI’s TAC-1 experimental prototype. Following a preliminary design review completed in March 2026, the Norwegian Manufacturers is currently building a ground test rig. According to reporting by Aviation International News, the company expects to run a propeller on the test rig by the end of the third quarter of 2026.
The all-electric seaplane is designed for a range of approximately 200 kilometers, targeting short-haul routes between coastal islands and waterway-connected communities. While initially focused on passenger transport, NOEMI Aerospace, which rebranded from Elfly Group in February 2026, announced a multi-mission Strategy on May 19, 2026. The company plans to adapt the airframe for specialized operations, including aerial firefighting, medical evacuation, troop transport, and skydiving.
AirPro News analysis
We view NOEMI’s selection of an out-of-autoclave composite system with existing NCAMP data as a pragmatic risk-reduction strategy. Electric aircraft developers face strict weight limitations due to current battery energy densities, making lightweight composite structures mandatory rather than optional. By choosing a material that already possesses verified performance data and FAA familiarity, NOEMI can avoid the time and expense of a clean-sheet material qualification program. The ability to cure a 21-meter wing structure outside of a traditional autoclave removes a significant Manufacturing bottleneck and reduces capital equipment costs for early-stage prototype production.
Sources: NOEMI Aerospace
Photo Credit: NOEMI Aerospace
Electric Aircraft
Project SEAN Wins £1.52M for Electric Aviation in Scotland
Bristow-led consortium secures UK DfT funding for a 2027 electric aircraft demonstration across Scotland’s Highlands and Islands.
A consortium led by Bristow Helicopters Limited has secured £1.52 million in UK government funding to conduct a three-month electric aviation demonstration program across Scotland’s Highlands and Islands beginning in 2027.
Announced in a press release on July 23, 2026, the initiative is designated Project SEAN (Scottish Electric Aviation Network). The project aims to evaluate the operational viability of electric aviation in remote regions and is backed by the UK Department for Transport (DfT) as part of its Zero emission flight demonstrator competition. The broader government initiative seeks to accelerate the commercial deployment of zero-emission aircraft from UK airports.
Consortium partners and aircraft selection
Project SEAN brings together multiple aviation and infrastructure entities to test the BETA Technologies ALIA CTOL (CX300), an all-electric conventional takeoff and landing aircraft. Alongside Bristow and BETA Technologies, the consortium includes Electric Aviation Maven Limited, Skyports Infrastructure Limited, Highlands and Islands Airports Limited (HIAL), and the Highlands and Islands Transport Partnership (HITRANS).
The demonstration flights will operate from a central hub at Inverness Airport (INV), connecting to regional destinations including Wick John O’Groats Airport (WIC). The three-month flight program is designed to generate operational data regarding aircraft performance, charging infrastructure requirements, and overall airport readiness.
Funding and operational objectives
The UK DfT awarded Project SEAN £1,522,896, supporting a total project cost of £2,125,155. The data collected during the 2027 flight program will inform evidence-based recommendations for integrating electric aircraft into passenger, cargo, and medical service routes.
“Project SEAN brings together organizations committed to exploring how electric aviation can support regional connectivity while reducing emissions across Scotland’s Highlands and Islands. With support from the Department for Transport, we can now move from planning to executing real-world demonstration flights and generating practical insights that will help inform the future of electric aviation in Scotland and beyond.”
Simon Meakins, the Project SEAN consortium lead for Bristow, stated that the group looks forward to working with local communities as the project advances toward its 2027 operational phase.
AirPro News analysis
The selection of Scotland’s Highlands and Islands for Project SEAN highlights the region’s utility as a proving ground for advanced air mobility and electric aviation. The local geography necessitates short, frequent flights to maintain connectivity between remote communities, perfectly matching the current range capabilities of early-generation electric aircraft like the BETA ALIA CTOL. By securing DfT funding, the Bristow-led consortium minimizes financial risk while gaining critical real-world data on charging infrastructure performance in harsh weather conditions. We expect the operational insights gathered at Inverness and Wick to serve as a baseline for broader UK electric aviation policy and infrastructure planning.
Sources: Bristow Group
Photo Credit: Bristow Group
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