Electric Aircraft
Horizon Aircraft Chooses Pratt Whitney PT6A for Hybrid eVTOL
Horizon Aircraft selects Pratt & Whitney Canada’s PT6A engine for its hybrid Cavorite X7 eVTOL, enhancing range, efficiency, and reliability.
The advanced air mobility (AAM) sector is undergoing a transformative phase, with eVTOL aircraft at the forefront of this evolution. As the industry races to develop practical, safe, and efficient solutions for urban and regional air transport, the choice of propulsion systems has emerged as a critical differentiator. Hybrid-electric architectures, which combine the benefits of conventional engines with electric propulsion, are increasingly being recognized for their operational flexibility and real-world applicability.
In this context, Horizon Aircraft’s decision to select the Pratt & Whitney Canada PT6A engine for its Cavorite X7 hybrid eVTOL marks a pivotal moment for both the company and the wider industry. This partnership brings together two prominent Canadian aerospace leaders and signals a commitment to reliability, efficiency, and innovation in next-generation aircraft design. The move not only enhances Horizon’s technical capabilities but also underscores the growing influence of Canadian firms in the global AAM landscape.
This article explores the significance of Horizon Aircraft’s engine selection, the technical and strategic rationale behind the decision, and its implications for the future of hybrid eVTOLs and the broader air mobility market.
Horizon Aircraft’s Cavorite X7 is designed to bridge the gap between helicopters and fixed-wing aircraft by leveraging a hybrid propulsion system. Unlike many eVTOLs that rely solely on batteries, the Cavorite X7 integrates a gas-powered PT6A engine with electric motors, enabling vertical takeoff and landing while maintaining the speed and range of a conventional airplane. The aircraft features the patented HOVR Wing technology, with 14 fans embedded in the wings for lift during takeoff and landing. Once airborne, these fans are covered, and the aircraft transitions to forward flight powered by a pusher propeller.
This hybrid approach addresses a key limitation of all-electric eVTOLs, range and infrastructure dependency. By using the PT6A engine as an onboard generator, the Cavorite X7 can recharge its batteries in-flight, drastically reducing downtime and enabling operations in remote or off-grid locations where charging stations are unavailable. This flexibility is particularly valuable for emergency services, disaster relief, and military missions, where operational reliability is paramount.
The Cavorite X7 is engineered to carry a pilot and up to six passengers, targeting a maximum speed of 450 km/hr (280 mph) and a range of approximately 800 kilometers (500 miles). These specifications position the aircraft as a versatile solution for both urban and regional missions, offering the vertical agility of a helicopter with the efficiency and speed of a fixed-wing aircraft.
“The Cavorite X7’s hybrid design enables unprecedented speed, range, efficiency, and dependability that other eVTOLs and helicopters cannot match, while reducing hydrocarbon emissions by up to 30% relative to conventional aircraft conducting similar operations.”, Horizon Aircraft
The PT6A engine, produced by Pratt & Whitney Canada, is widely recognized as one of the most reliable and efficient turboprop engines in aviation history. Since its introduction in the 1960s, over 50,000 PT6A engines have been manufactured, collectively amassing hundreds of millions of flight hours. This track record of reliability and performance made the PT6A a natural choice for Horizon Aircraft’s ambitious hybrid eVTOL project.
The PT6A’s modular reverse flow architecture simplifies installation and maintenance, which is especially beneficial for new aircraft platforms like the Cavorite X7. Its power-to-weight ratio and operational flexibility are well-suited to the demands of hybrid-electric propulsion, where the engine must serve as both a primary power source and a generator for the battery system. The use of a proven, certified engine also mitigates risks associated with developing entirely new propulsion systems, streamlining the path toward regulatory approval and commercial deployment. In the Cavorite X7, the PT6A will not only provide thrust but also generate electricity for the aircraft’s electric motors and recharge the battery system during flight. This hybrid configuration extends the aircraft’s range and endurance beyond what is feasible with current battery technology alone, while also reducing reliance on ground-based charging infrastructure.
“For more than six decades, the PT6 engine has been at the heart of countless innovations in aviation, continually evolving to meet the needs of customers worldwide.”, Scott McElvaine, Vice President, Sales & Marketing and Business Development, Pratt & Whitney Canada
The global eVTOL market is rapidly expanding, with projections estimating a value of USD 28.6 billion by 2030. While many competitors, such as Joby Aviation and Archer Aviation, have focused on all-electric designs, the hybrid-electric segment is gaining traction for applications that require longer flight times, greater payloads, and operations in less developed regions. Horizon Aircraft’s strategic bet on hybrid technology positions it to capture a distinct segment of the market that prioritizes operational flexibility and real-world applicability.
The formal purchase agreement between Horizon Aircraft and Pratt & Whitney Canada underscores the strength of the Canadian aerospace sector. By collaborating domestically, both companies are contributing to Canada’s reputation as a hub for advanced air mobility innovation. This partnership is not only a technical milestone but also a statement of intent regarding the future direction of the industry.
As the AAM sector moves toward commercialization, the ability to offer certified, reliable, and efficient aircraft will be a key differentiator. The selection of the PT6A engine is a critical step in Horizon Aircraft’s journey toward type certification and eventual production, providing a solid foundation for further development and market entry.
Developing a new category of aircraft like the hybrid eVTOL comes with significant technical and regulatory challenges. Integrating a hybrid propulsion system requires careful management of weight, thermal loads, and system redundancies to ensure safety and reliability. The complexity of certifying a novel aircraft design, especially one that combines established and emerging technologies, adds another layer of difficulty.
However, the use of the PT6A engine, with its established certification and operational history, helps mitigate some of these risks. By leveraging a proven powerplant, Horizon Aircraft can focus its resources on refining the hybrid architecture and flight systems, rather than developing an entirely new engine from scratch. This approach may also facilitate a smoother certification process with regulatory authorities.
Regulatory agencies worldwide are still developing frameworks for certifying eVTOL and hybrid aircraft. Companies that can demonstrate compliance with existing standards, while also contributing to the evolution of new regulatory pathways, are likely to gain a competitive advantage as the market matures.
“Hybrid aircraft offer operational advantages over all-electric designs, including using warm air from the engine for de-icing and cabin heating. The aircraft’s battery array can recharge en route within minutes, allowing for a full charge during the landing phase.”, Brandon Robinson, CEO, Horizon Aircraft
One of the primary drivers behind the adoption of hybrid and electric propulsion in aviation is the potential for reduced environmental impact. Horizon Aircraft projects that the Cavorite X7 will reduce hydrocarbon emissions by up to 30% compared to conventional aircraft on similar missions. This reduction is achieved through a combination of efficient engine operation, optimized flight profiles, and the ability to operate electrically during certain phases of flight. While hybrid systems do not eliminate emissions entirely, they represent a pragmatic step toward decarbonizing regional and urban air mobility. In scenarios where ground-based charging infrastructure is limited or unreliable, hybrid aircraft can offer immediate operational benefits while still contributing to overall emissions reduction goals.
Looking ahead, further advancements in battery technology and alternative fuels could enable even greater sustainability. The modular nature of the Cavorite X7’s design may allow for future upgrades, such as integration with hydrogen fuel cells or next-generation batteries, as these technologies mature and become commercially viable.
Horizon Aircraft has been making measurable progress in the development of the Cavorite X7, including wind tunnel testing of a half-scale prototype. The company aims to have a full-scale technology demonstrator flying in the near future, with a target of achieving type certification before 2030. The selection of the PT6A engine is a foundational milestone in this timeline, solidifying a key component of the aircraft’s design and supply chain.
The broader AAM market is characterized by a diversity of approaches to propulsion, ranging from all-electric to hybrid and, potentially, hydrogen-based systems in the future. Horizon Aircraft’s focus on hybrid technology positions it to address a wide range of use cases, particularly those that require extended range and operational flexibility.
As commercialization approaches, the ability to demonstrate reliable, safe, and efficient operations will be a crucial for gaining regulatory approval and market acceptance. Horizon Aircraft’s partnership with Pratt & Whitney Canada provides a strong foundation for meeting these challenges and capturing a share of the rapidly growing eVTOL market.
Horizon Aircraft’s selection of the Pratt & Whitney Canada PT6A engine for its Cavorite X7 hybrid eVTOL represents a significant advance in the evolution of advanced air mobility. By leveraging a proven engine with a legacy of reliability and efficiency, Horizon is positioning itself to address real-world operational needs while navigating the complexities of aircraft certification and commercialization.
As the industry continues to evolve, the success of hybrid eVTOLs like the Cavorite X7 will depend on ongoing innovation, regulatory collaboration, and the ability to deliver tangible benefits in terms of speed, range, and sustainability. The partnership between Horizon Aircraft and Pratt & Whitney Canada exemplifies the kind of strategic collaboration that will shape the future of urban and regional air transport, with implications for industry players, regulators, and passengers alike.
What is the Cavorite X7? Why did Horizon Aircraft choose the PT6A engine? What are the advantages of hybrid eVTOLs over all-electric designs? What is the projected environmental impact of the Cavorite X7? When will the Cavorite X7 be available? Sources: Horizon Aircraft Press Release
Horizon Aircraft’s Selection of Pratt & Whitney Canada’s PT6A Engine, A Strategic Leap in Hybrid eVTOL Innovation
The Cavorite X7 and the Promise of Hybrid eVTOLs
Design Philosophy and Operational Advantages
Technical Rationale for Selecting the PT6A Engine
Market Context and Strategic Implications
Challenges, Opportunities, and the Road Ahead
Addressing Technical and Regulatory Hurdles
Environmental Impact and Sustainability Considerations
Future Developments and Market Outlook
Conclusion: Implications and the Path Forward
FAQ
The Cavorite X7 is a hybrid electric Vertical Take-Off and Landing (eVTOL) aircraft developed by Horizon Aircraft. It is designed for a range of applications, including emergency services, commercial transport, and disaster relief, and features a unique hybrid propulsion system combining a gas turbine engine and electric motors.
Horizon Aircraft selected the Pratt & Whitney Canada PT6A engine due to its proven reliability, efficiency, and power-to-weight ratio. The engine’s established certification and operational history make it an optimal choice for the hybrid-electric architecture of the Cavorite X7.
Hybrid eVTOLs offer longer range, faster speeds, and the ability to operate in areas without charging infrastructure. They also provide operational benefits such as in-flight battery recharging and reduced downtime compared to all-electric aircraft.
Horizon Aircraft projects that the Cavorite X7 will reduce hydrocarbon emissions by up to 30% compared to conventional aircraft on similar missions, contributing to the aviation industry’s sustainability goals.
Horizon Aircraft is progressing through prototype testing and aims to achieve type certification for a production aircraft before 2030.
Photo Credit: Horizon Aircraft
Electric Aircraft
Pipistrel Velis Electro Secures First Electric Aircraft Safety Certification in Asia
Pipistrel’s Velis Electro receives South Korea’s first safety certification for electric aircraft, enabling commercial flight training in Asia.
This article is based on an official press release from Pipistrel.
Pipistrel, a Textron Inc. company, has officially received the first safety certification for its Velis Electro aircraft in Asia, marking a pivotal moment for Electric-Aviation in the region. The Certification was issued by the Civil Aviation Authority of South Korea, clearing the way for the fully electric aircraft to enter commercial service in the country.
According to the company’s announcement on December 23, 2025, this approval represents the first time in South Korea’s 77-year aviation history that an electric aircraft has been certified for operation. The milestone underscores the growing global acceptance of electric propulsion in general aviation, particularly for flight training applications.
While the Velis Electro has been operating in Europe and other Western markets for several years, its entry into Asia opens a significant new frontier. The certification process was a collaborative effort involving TOFF MOBILITY, a local South Korean partner. TOFF MOBILITY took delivery of the first unit in 2024 and worked closely with regulators to conduct the necessary flight testing and data collection required to prove the aircraft’s safety profile.
Gabriel Massey, President and Managing Director of Pipistrel, highlighted the strategic importance of this achievement in a company statement:
“The approval from the Civil Aviation Authority of South Korea represents a landmark achievement for Pipistrel, signifying our pioneering introduction of electric aircraft technology into the Asian market… It significantly advances our mission to lead the charge in sustainable aviation, opening new doors for electric flight across the continent.”
The aircraft has been certified as a “Lightweight Aircraft” in South Korea, a classification aligned with its Maximum Take-Off Weight (MTOW) of 600 kg (1,320 lbs).
We view this certification as a critical precedent for the Asia-Pacific aviation sector. South Korea is a market characterized by high population density and stringent noise regulations near urban centers. The Velis Electro’s ability to operate quietly, generating only 60 dBa, makes it uniquely suited for this environment. By securing this certification, South Korean regulators have effectively established a framework for future electric aircraft, signaling that the region is ready to integrate Advanced Air Mobility (AAM) and sustainable flight technologies into its airspace.
The Velis Electro remains the world’s only commercially available, type-certified electric aircraft. Designed primarily for pilot training, it offers a sustainable alternative to traditional piston-engine trainers. According to Pipistrel’s technical specifications, the aircraft features a liquid-cooled electric powertrain that drastically reduces the number of moving parts, thereby lowering maintenance costs and downtime. Key technical specifications confirmed by the Manufacturers include:
The aircraft’s battery system is designed with redundancy in mind. One pack is located in the nose and the other behind the cabin; if one system fails, the other is capable of sustaining flight, ensuring a high margin of Safety for student pilots.
This latest approval in South Korea adds to a growing list of regulatory bodies that have validated the Velis Electro’s airworthiness. The aircraft first made history in June 2020 when it received the world’s first type certification for an electric aircraft from the European Union Aviation Safety Agency (EASA). Since then, it has secured approvals from the UK Civil Aviation Authority (2022) and an airworthiness exemption for Light-Sport Aircraft from the FAA in the United States (2024).
With the addition of South Korea in late 2025, Pipistrel has successfully expanded its regulatory footprint into three major continents, reinforcing its position as the industry leader in certified electric flight.
What is the primary use of the Velis Electro? How loud is the aircraft? Who is the local partner in South Korea? Sources: Pipistrel
Pipistrel Velis Electro Secures Historic First Safety Certification in Asia
Breaking New Ground in the Asian Market
AirPro News Analysis
Technical Profile: The Velis Electro
Global Certification Timeline
Frequently Asked Questions
The aircraft is designed primarily for flight training, specifically circuit training. Its low operating costs and quiet profile make it ideal for flight schools operating near residential areas.
The Velis Electro has a noise level of approximately 60 dBa, which is significantly quieter than traditional combustion-engine aircraft.
TOFF MOBILITY, a South Korean electric flight company, partnered with Pipistrel to facilitate the certification process and took delivery of the first aircraft in 2024.
Photo Credit: Pipistrel
Electric Aircraft
Vertical Aerospace Completes Final VX4 Prototype and Plans Hybrid Expansion
Vertical Aerospace finishes third VX4 prototype, doubles test capacity, and plans hybrid-electric retrofit targeting longer range in 2026.
Vertical Aerospace (NYSE: EVTL) has officially announced the completion of its third and final full-scale VX4 prototype, a critical milestone intended to accelerate the company’s path toward Certification. According to a statement released on December 22, 2025, the new aircraft is scheduled to begin piloted flight testing in January 2026 following a brief commissioning phase.
The addition of this aircraft effectively doubles the Bristol-based manufacturer’s flight test capacity. By operating two identical full-scale prototypes simultaneously, Vertical Aerospace aims to increase the frequency of data gathering required for regulatory approval. This development comes shortly after the company unveiled “Valo,” its rebranded commercial production aircraft, and signaled a strategic expansion into hybrid-electric propulsion for defense and logistics markets.
The newly completed aircraft is a VX4 model, identical to the second prototype that has been undergoing rigorous testing in the UK. In November 2025, the existing prototype received its Permit to Fly and has since completed 10 piloted flights, successfully expanding the aircraft’s flight envelope. The primary role of this final prototype is to serve as a workhorse for validating aerodynamics, flight control software, and battery technologies.
According to the company’s announcement, the immediate schedule for the new unit involves post-production systems checks followed by a maiden piloted flight in January. Stuart Simpson, CEO of Vertical Aerospace, emphasized the importance of this addition to their fleet:
“As we look ahead to 2026, the addition of our final prototype marks an important step in closing out our prototype flight test programme and maintaining momentum towards commercialization. Our test pilots are eager to get this aircraft into the air.”
While the immediate focus remains on electric vertical takeoff and landing (eVTOL) certification, Vertical Aerospace is simultaneously broadening its technological scope. The company revealed that later in 2026, this final prototype will be retrofitted with a hybrid-electric propulsion system. This modification is designed to test long-range capabilities, with a target range of up to 1,000 miles, significantly higher than the ~100-mile range of the all-electric configuration.
This hybrid strategy targets the defense, logistics, and emergency medical services (EMS) sectors, where range and payload often outweigh the requirement for zero-emission short hops. The company projects a payload capacity of approximately 1,100 kg for this variant.
Vertical Aerospace has clarified the distinction between the testing hardware and the final commercial product. The aircraft currently flying, and the unit just completed, are VX4 prototypes. These utilize the original fuselage design and distributed battery packs to validate core systems.
In contrast, the commercial model, branded as Valo, features a redesigned fuselage, a V-tail with a tail wheel, and an under-floor liquid-cooled battery system. While the flying prototypes remain in the UK for technical validation, Vertical Aerospace plans to launch a US tour in January 2026, starting in New York City. This tour is expected to feature a full-scale static model of Valo to demonstrate the passenger experience to investors and partners. The expansion of the flight test program occurs against a backdrop of careful capital management. As of November 2025, Vertical Aerospace reported a cash position of approximately £89 million ($117 million). The company has stated this funding provides a runway through mid-2026, with a controlled net operating cash outflow guidance of $110–125 million for the 2025 fiscal year.
Key milestones for the upcoming year include:
The completion of a third prototype is a standard but vital step in aerospace certification; redundancy allows for parallel testing streams, one aircraft can focus on performance handling while the other tests system reliability or failure modes. However, the most significant revelation in this update is the concrete timeline for the hybrid-electric retrofit.
By targeting a 1,000-mile range with a hybrid variant, Vertical Aerospace is effectively hedging its bets. The pure-electric urban air mobility market is crowded and infrastructure-dependent. A hybrid variant opens immediate doors to military and cargo contracts that are less sensitive to noise and battery density constraints. With a cash runway extending only to mid-2026, demonstrating a viable hybrid technology later that year could be a decisive factor in securing the next tranche of necessary funding.
Vertical Aerospace Completes Final VX4 Prototype, Targets Hybrid Expansion in 2026
Accelerating the Path to Certification
Strategic Pivot: Hybrid Propulsion and the “Valo” Tour
Distinguishing Prototype from Product
Financial Outlook and Timeline
AirPro News Analysis
Sources
Photo Credit: Vertical Aerospace
Electric Aircraft
Jekta Unveils Scale Model of PHA-ZE 100 Electric Amphibious Aircraft
Jekta advances electric amphibious aircraft development with a 1:9 scale model undergoing flight tests ahead of 2030 service entry.
Swiss aerospace manufacturer Jekta has officially unveiled a 1:9 scale model of its PHA-ZE 100 (Passenger Hydro Aircraft, Zero Emissions 100), marking a critical milestone in the development of its 19-passenger electric aviation amphibious aircraft. The announcement, made on December 11, 2025, confirms that the company has moved into active flight testing with the sub-scale demonstrator to validate its aerodynamic and hydrodynamic designs.
According to the company’s announcement, the remote-controlled model is currently undergoing flight campaigns in Italy. These tests are designed to gather real-world data that will be cross-referenced with computer simulations, ensuring the airframe is mature before the company proceeds to full-scale production. Jekta aims to reintroduce the utility of the “flying boat” to the global market, targeting an entry into service by 2030.
The newly unveiled model represents a significant engineering step for the Payerne-based company. While digital modeling provides a theoretical baseline, physical testing of the 1:9 scale model allows engineers to observe how the hull interacts with water during takeoff and landing, as well as how the distributed electric propulsion system performs in flight.
The testing is taking place near the base of Jekta’s Head of Design, Max Pinucci, in Italy. In a statement regarding the program’s progress, Jekta CEO George Alafinov emphasized the practical utility of the large-scale model:
“The 1:9 scale model is large enough to provide data representative of the full-size aircraft and is allowing us to efficiently expand the test envelope… ensuring the aircraft’s maturity as we work towards introducing it to the global air transport network in 2030.”
, George Alafinov, CEO of Jekta
The full-scale PHA-ZE 100 is designed to serve coastal communities, island nations, and regional routes that lack extensive airport infrastructure. By utilizing existing waterways and standard runways, the aircraft offers operational flexibility without the need for the expensive vertiports often required by eVTOL (electric vertical takeoff and landing) competitors.
According to technical details released by the manufacturer, the aircraft will feature: Jekta has outlined a dual-propulsion strategy to meet different market needs. The base model will utilize battery-electric technology, offering a range of approximately 150 km, suitable for short inter-island hops. However, through a partnership with ZeroAvia, Jekta is also developing a hydrogen fuel cell variant. This configuration is projected to quadruple the effective range to nearly 600 km, making regional connectivity viable for zero-emission operators.
Jekta’s progress highlights a growing sub-sector in sustainable aviation: the modernization of the amphibious aircraft. While the “Golden Age” of flying boats faded after World War II due to the rise of long runways and jet engines, the format solves a specific modern problem. Developing nations in Southeast Asia and archipelagos like the Maldives often struggle to build land-based runways due to ecological concerns or lack of space. The PHA-ZE 100’s ability to operate from water offers an “infrastructure-light” solution.
We note that Jekta faces competition in this niche, specifically from Norway’s Elfly Group, which is developing the 9-seat “Noemi,” and the US-based REGENT, which is building the “Viceroy” seaglider. However, Jekta’s 19-seat capacity places it in a larger utility class, potentially appealing to operators looking to replace aging Twin Otters or Cessna Caravans on over-water routes.
Jekta Advances Electric Amphibian Program with 1:9 Scale Model Unveiling
Flight Testing and Validation
PHA-ZE 100 Technical Specifications
Battery vs. Hydrogen Variants
AirPro News Analysis
The Return of the Flying Boat
Frequently Asked Questions
Sources
Photo Credit: Jekta
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