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Pratt & Whitney Boeing 747SP Test Bed at EAA AirVenture 2025

Pratt & Whitney showcases its rare Boeing 747SP test bed at EAA AirVenture Oshkosh 2025, highlighting 100 years of engine innovation and sustainable aviation advancements.

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Pratt & Whitney’s Boeing 747SP Test Bed: A Legacy of Innovation at EAA AirVenture Oshkosh 2025

In the world of aviation, few aircraft stand out as both engineering marvels and historical artifacts. The Boeing 747SP, a shortened, long-range version of the iconic jumbo jet, is one such aircraft. Even rarer is the version operated by Pratt & Whitney, modified with a fifth engine mount and used as a flying test bed for experimental propulsion systems. In 2025, this unique aircraft will be a headline attraction at EAA AirVenture Oshkosh, one of the world’s largest aviation gatherings.

Pratt & Whitney’s decision to showcase its 747SP test bed at Oshkosh aligns with its centennial celebration, marking 100 years of innovation since the company’s founding in 1925. This event offers a rare opportunity for aviation enthusiasts, engineers, and the general public to witness a piece of living history that continues to shape the future of flight.

The Boeing 747SP: A Rare Bird with a Purpose

Originally introduced in the mid-1970s, the Boeing 747SP (Special Performance) was designed for ultra-long-range flights, sacrificing passenger capacity for extended reach. Only 45 units were ever manufactured, making it one of the rarest commercial aircraft variants in the skies. Pratt & Whitney owns and operates two of the remaining airworthy models, one of which has been transformed into a state-of-the-art flying test bed.

This aircraft stands out due to its fifth engine mount, located on the left wing. This unique configuration allows engineers to test new engine designs in real-world conditions without compromising the aircraft’s primary propulsion systems. Since 2001, the test bed has contributed to the development of more than 70 experimental engines, including the PW800 and the Geared Turbofan (GTF) engine series.

With over 1,400 combined ground and flight test runs, the 747SP test bed has proven instrumental in evaluating engine performance across various weather conditions, altitudes, and operating scenarios. This real-time data is crucial for refining design, improving fuel efficiency, and reducing emissions, key goals for the aviation industry as it moves toward sustainability.

“Our Boeing 747SP test bed is a testament to our commitment to innovation and sustainability. It allows us to push the boundaries of engine technology in real-world conditions.” , Pratt & Whitney Spokesperson

Engineering Meets Heritage

Despite its advanced capabilities, the 747SP is also a symbol of aviation heritage. Its presence at AirVenture Oshkosh 2025 is more than a technical showcase, it’s a celebration of a century of aerospace milestones. According to Rick Larsen, EAA’s vice president of communities and member programs, “Bringing the 747SP to AirVenture is a fitting tribute to the company’s century of technological advancements.”

Visitors to Boeing Plaza from July 20–24, 2025, will have the rare opportunity to explore the aircraft up close. The 747SP will be on static display, and Pratt & Whitney’s team will be on hand to explain its significance and ongoing role in propulsion innovation. The event is expected to attract over 500,000 attendees, making it one of the largest public showcases of this aircraft to date.

In addition to the test bed itself, Pratt & Whitney Canada will exhibit PT6 engine cutaways and other aerospace technologies at their booth in Exhibit Hangar B. Collins Aerospace will also participate, highlighting the broader RTX family’s contributions to aviation systems and innovation.

Driving the Future of Sustainable Aviation

As the aviation industry faces mounting pressure to reduce its environmental footprint, test beds like the 747SP play a critical role in the development of next-generation propulsion systems. The Geared Turbofan engine, for instance, offers double-digit improvements in fuel efficiency and noise reduction compared to previous models. These innovations are not theoretical, they’re validated in the skies through platforms like the 747SP.

Pratt & Whitney’s test bed has also been used to evaluate engines compatible with sustainable aviation fuels (SAF), an essential component of the industry’s roadmap to net-zero carbon emissions by 2050. By simulating real-world flight conditions, the aircraft helps accelerate certification timelines and ensures that new engines meet both performance and environmental standards.

Industry analysts, including Mark Thompson of Aviation Week, note that using legacy aircraft for engine testing is both cost-effective and practical. “Pratt & Whitney’s approach reflects a balance between innovation and operational pragmatism,” Thompson commented. This blend of heritage and forward-thinking strategy is what makes the 747SP test bed so unique.

“The 747SP is a remarkable aircraft in aviation history, and its adaptation as a flying test bed underscores the ingenuity of aerospace engineering.” , Dr. Jane Williams, Aviation Historian

A Centennial of Innovation

Founded in 1925, Pratt & Whitney has been a cornerstone of aerospace advancement for a century. From the legendary Wasp radial engines of the early 20th century to today’s high-bypass turbofans, the company’s legacy is built on pushing the boundaries of what’s possible in flight.

Pratt & Whitney Canada, established in 1928, is particularly renowned for the PT6 engine, a turboprop powerhouse that has logged over 500 million flight hours and is used in a wide range of aircraft from bush planes to business jets. The PT6 will also be featured at AirVenture 2025, reinforcing the company’s long-standing commitment to general aviation.

Maria Della Posta, president of Pratt & Whitney Canada, emphasized the significance of the event: “Showcasing the 747SP at Oshkosh not only honors our legacy, it demonstrates how our commitment to innovation continues to shape the future of aviation.”

Conclusion

Pratt & Whitney’s Boeing 747SP test bed is more than an engineering platform, it’s a symbol of continuity between aviation’s storied past and its sustainable future. Its appearance at EAA AirVenture Oshkosh 2025 offers a unique glimpse into the rigorous testing and bold innovation that define modern aerospace development.

As the industry strives toward cleaner, quieter, and more efficient flight, platforms like the 747SP will continue to play a pivotal role. For aviation fans, engineers, and industry stakeholders alike, this aircraft represents not only what has been achieved in the last 100 years, but what lies ahead in the next century of flight.

FAQ

What is the Boeing 747SP test bed used for?
The aircraft is used by Pratt & Whitney to test and validate new engine technologies under real-world flight conditions.

Why is the 747SP significant?
Only 45 were ever built, and it is one of the few remaining airworthy examples. Its test bed configuration makes it unique in the world.

When and where can I see the aircraft?
The 747SP will be on display at EAA AirVenture Oshkosh 2025 from July 20–24 at Boeing Plaza, Wittman Regional Airport, Wisconsin.

Sources: The North Western, Wikipedia, Pratt & Whitney, EAA AirVenture Oshkosh

Photo Credit: Oshkosh Northwestern

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NASA Releases LAVA Software for US Aerospace Industry Simulations

NASA’s LAVA software enables efficient, high-fidelity aerodynamic simulations for US aerospace startups and researchers.

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This article is based on an official press release from NASA.

During the planning of the Artemis I mission, engineers relied on highly advanced simulations to model exactly how the Space Launch System (SLS) rocket’s massive exhaust plumes would interact with the launchpad and its water-based sound suppression system. These simulations, often visualized with striking red and blue pressure waves alongside teal water contours, were powered by a proprietary tool known as the Launch, Ascent, and Vehicle Aerodynamics (LAVA) framework.

Today, NASA announced the public release of this mission-critical software to the domestic aerospace industry. According to an official press release published by the agency, the goal of this release is to democratize access to high-fidelity aerodynamic testing, placing NASA-grade precision into the hands of universities, small businesses, and commercial Electric-Aviation Startups.

Developed by the LAVA team at NASA’s Ames Research Center in California’s Silicon Valley, the Software was originally created to address complex airflow challenges during the redesign of the launch infrastructure at the Kennedy Space Center. Now, it is poised to help private companies design everything from delivery Drones to supersonic airliners.

The Technical Breakthroughs of LAVA

At its core, LAVA is a computational fluid dynamics (CFD) software package designed to predict how air, gases, and liquids move around rockets, aircraft, and spacecraft. According to the NASA release, the framework allows engineers to conduct “scale-resolving simulations” that capture high-fidelity renderings of complex aerodynamic phenomena, including pressure waves, turbulent swirls, and acoustic signatures.

Historically, achieving this level of aerodynamic simulation required massive supercomputing infrastructure, making it highly resource-intensive and time-consuming. A major breakthrough of the LAVA framework is its ability to run these complex simulations efficiently on modest computing hardware. NASA notes that this efficiency makes the software readily available and easier to use, even for novice engineers.

Multi-Physics Coupling and Grid Flexibility

Beyond basic airflow, LAVA distinguishes itself through multi-physics coupling. The software combines CFD for air motion with structural dynamics and contact mechanics. For example, this allows engineers to simulate the physical deformation of a parachute under extreme stress. The framework also features auxiliary modules for Conjugate Heat Transfer (CHT) and Computational Aero-Acoustics (CAA).

Furthermore, NASA highlights that the software is highly adaptable and “grid agnostic.” It is capable of handling various grid types, including Cartesian, curvilinear, and unstructured grids, to accurately map over highly complex geometric shapes.

From Artemis to Commercial Aviation

Before its public release, NASA relied heavily on LAVA for critical mission planning. In addition to the Artemis I launch environment, the LAVA team is currently utilizing the software to simulate supersonic parachute inflation, a critical component for safe spacecraft recovery and future Mars landings. Engineers also routinely use the tool to determine how spacecraft will navigate the extreme conditions of atmospheric re-entry.

By releasing LAVA to the US aerospace industry, NASA is significantly lowering the barrier to entry for advanced aerodynamic testing. The agency notes that the industry will be able to harness LAVA’s capabilities for a wide array of next-generation aviation projects. Target applications include large supersonic airliners, Advanced Air Mobility (AAM) vehicles such as passenger air taxis, and smaller commercial delivery drones.

“This isn’t only about releasing software; it’s about accelerating innovation. When university researchers can run more complex simulations and when small companies can optimize designs with NASA-grade precision, we’re not only sharing tools, we’re unleashing potential.”

— Jared Duensing, LAVA Team Lead at NASA’s Ames Research Center, in a statement provided by NASA.

AirPro News analysis

We view the domestic release of the LAVA framework as a significant catalyst for the commercial aerospace sector, particularly for startups operating in the Advanced Air Mobility (AAM) and drone delivery spaces. By removing the need for massive, cost-prohibitive supercomputing infrastructure to run high-fidelity aerodynamic simulations, NASA is effectively leveling the playing field. Small businesses will now have the computational tools necessary to optimize novel wing designs and rotor configurations early in the development cycle, potentially reducing physical prototyping costs and accelerating time-to-market for next-generation Commercial-Aircraft.

Frequently Asked Questions

What does LAVA stand for?

LAVA stands for Launch, Ascent, and Vehicle Aerodynamics. It is a computational fluid dynamics (CFD) software framework developed by NASA.

Who is the target audience for the LAVA software release?

According to NASA, the software is being released to the US aerospace industry. Target beneficiaries include academic researchers at universities, small businesses, and commercial aviation startups working on projects like air taxis, delivery drones, and supersonic aircraft.

Does LAVA require a supercomputer to run?

No. One of the major technical breakthroughs of the LAVA framework is its ability to run complex, high-fidelity aerodynamic simulations efficiently on modest computing resources.


Sources: NASA

Photo Credit: NASA

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AURA AERO Unveils Cabin Configurations for ERA Hybrid-Electric Aircraft

AURA AERO presents versatile cabin layouts for its 19-seat ERA hybrid-electric aircraft, targeting 80% CO₂ emissions reduction and 900 nm range.

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AURA AERO Unveils Versatile Cabin Configurations for ERA Hybrid-Electric Aircraft at AERO Friedrichshafen 2026

At the AERO Friedrichshafen 2026 aviation trade show, French aircraft manufacturer AURA AERO officially unveiled the cabin configurations for its highly anticipated 19-seat hybrid-electric regional aircraft, the Electric Regional Aircraft (ERA). The announcement marks a significant milestone as the company transitions from conceptual design to tangible passenger experience.

According to the company’s official press release, the ERA is designed as a highly adaptable platform capable of evolving with operator missions. The aircraft promises up to an 80 percent reduction in CO₂ emissions compared to conventional aircraft in its class, signaling a major step forward in the decarbonization of regional air transport.

With nearly 700 letters of intent and 20 firm orders now on the books, AURA AERO confirmed strong market interest in its approach. The newly revealed cabin designs emphasize a blend of perceived comfort, modern connectivity, and sustainable materials, aiming to redefine the standard for short-haul regional flights.

Redefining the Regional Cabin Experience

Company specifications indicate that the ERA cabin features a fully cylindrical section with a height of 1.88 meters (approximately 6 feet 2 inches) and a wide 20-inch central aisle. To maximize the feeling of spaciousness, AURA AERO has completely eliminated traditional overhead luggage bins. Instead, cabin baggage will be stored in a dedicated 70-cubic-foot compartment located at the front of the aircraft.

The interior design heavily incorporates bio-based and recyclable materials, including linen, basalt, and cork, which the manufacturer states will reduce the cabin’s environmental footprint while maintaining strict weight controls. Large cabin windows have been integrated to provide abundant natural light. On the technology front, every seat will feature USB-C charging ports, and the aircraft will be equipped with high-speed Starlink internet connectivity.

“A self-service galley, soft materials and a warm atmosphere create an environment designed for socializing, working, or simply taking your time,” noted an AURA AERO spokesperson in the release.

Versatile Configurations for Diverse Missions

The ERA is engineered to seamlessly transition between various operational roles. AURA AERO detailed four distinct layouts during the Friedrichshafen event:

  • Lounge Configuration (8 Passengers): Marketed as a “private lounge in the sky,” this layout features four two-seat club sections with 23-inch wide seats, a rear sofa conversion, and a self-service galley.
  • Business Configuration (9 Passengers): Designed for premium corporate travel, offering a 1-1 seating arrangement with 23-inch wide seats and a 38-inch pitch.
  • Regional / Economy Configuration (16 to 19 Passengers): Built for short-haul shuttles. The 18- and 19-seat layouts utilize a 2-1 arrangement with 17-inch wide seats and a 29-inch pitch. A 16-seat option increases the pitch to 34 inches.
  • Cargo Configuration: A freighter version offering up to 760 cubic feet (21 cubic meters) of volume, capable of holding up to six US pallets or seven EU pallets, accessed via a large 58-by-69-inch cargo door.

Technical Specifications and Performance

The ERA is positioned to revitalize regional aviation by connecting underserved communities while drastically cutting emissions and operational costs. According to the manufacturer’s data, the aircraft utilizes a hybrid-electric architecture powered by eight Safran ENGINeUS electric motors and two turbo-generators compatible with Sustainable Aviation Fuel (SAF).

Performance metrics released by the company show the ERA is capable of flying up to 900 nautical miles with a cruising speed of 250 knots true airspeed (ktas), reaching a maximum cruise speed of 300 knots. It features an operational ceiling of 25,000 feet.

Economic and Environmental Impact

AURA AERO projects that the ERA will achieve up to an 80 percent reduction in CO₂ emissions. Furthermore, the hybrid-electric design is expected to cut both energy and maintenance costs by up to 50 percent, presenting a compelling economic case for regional operators. The aircraft also boasts Short Takeoff and Landing (STOL) capabilities, requiring only 800 meters of runway, and is capable of operating on unpaved surfaces.

“ERA is designed to reconnect people in regions where aviation remains essential for accessibility, while playing a key role in decarbonizing air transport,” stated Jérémy Caussade, President and Co-founder of AURA AERO.

Market Traction and Industrial Expansion

AURA AERO is rapidly moving toward industrial-scale production. The company’s order book currently stands at nearly 700 letters of intent, valued at over $10.5 billion, alongside 20 firm orders. Notable customers and partners highlighted in the research report include JSX, Pan Européenne Air Service (PEAS), Marathon Airlines, and Solyu.

In April 2026, the company closed a €50 million Series B funding round, bringing its total raised capital to €340 million. Backers include Bpifrance, the European Innovation Council Fund, and Safran Corporate Ventures. To support production, AURA AERO has secured a building permit for a factory at Toulouse-Francazal Airport in France and is developing a 16-hectare manufacturing site near Daytona Beach International Airport in Florida.

Testing of the first prototype parts has already begun. The company is targeting a maiden-flight”>maiden flight in 2027, with certification and entry into service expected before 2030.

“Funding, firm orders, and manufacturing facilities are no longer just prospects, they are realities,” said Antoine Blin, Chief of Staff at AURA AERO.

AirPro News analysis

We view AURA AERO’s latest cabin unveil as a critical maturation point for the ERA program. The decision to remove overhead bins is a particularly smart weight-and-space tradeoff for the short-haul regional market, allowing for a much more open cabin feel without expanding the fuselage drag profile. Furthermore, the recent €50 million Series B funding and the establishment of dual manufacturing footprints in France and the U.S. demonstrate that AURA AERO is successfully navigating the difficult transition from aerospace startup to industrial manufacturer. While the 2030 entry-into-service target remains ambitious given the regulatory hurdles of certifying novel hybrid-electric architectures, the backing of established players like Safran provides significant technical and financial credibility.

Frequently Asked Questions

What is the AURA AERO ERA?
The ERA (Electric Regional Aircraft) is a 19-seat hybrid-electric regional aircraft designed by French manufacturer AURA AERO. It is built to serve short-haul routes with significantly lower emissions and operating costs.

When will the ERA enter service?
According to the company’s current timeline, the maiden flight is scheduled for 2027, with certification and commercial entry into service targeted before 2030.

What are the environmental benefits of the ERA?
The aircraft utilizes a hybrid-electric propulsion system and Sustainable Aviation Fuel (SAF) compatible generators, which the company claims will reduce CO₂ emissions by up to 80 percent compared to traditional aircraft of similar size.

Sources

Photo Credit: AURA AERO

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Volocopter Launches VoloXPro Electric Ultralight Multicopter in 2026

Volocopter introduces the VoloXPro, an electric ultralight multicopter targeting flight schools and air taxis with certification planned in Germany by 2026.

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This article is based on an official press release from Volocopter.

Volocopter has officially unveiled the VoloXPro, a newly developed electrically powered ultralight multicopter. Announced on April 22, 2026, in Friedrichshafen, Germany, the aircraft is designed to serve a diverse range of operators, from European flight schools and air sports enthusiasts to international air taxi services.

According to the company’s press release, the VoloXPro aims to deliver emission-neutral and low-noise flight capabilities to a wide array of users. Volocopter plans to secure ultralight aircraft certification in Germany by the end of 2026, with parallel approval processes currently underway across other European nations.

We note that this development represents a significant expansion of Volocopter’s portfolio, leveraging existing technology to bridge the gap between recreational flying, professional pilot training, and commercial passenger transport.

Modular Design and Safety Standards

Leveraging VoloCity Technology

The VoloXPro is built upon a modular platform concept, allowing for various technical configurations tailored to specific customer needs. The manufacturer states that the aircraft incorporates components originally developed for the VoloCity, Volocopter’s flagship model designed for air taxi, medical, and police operations.

By utilizing these shared components, the VoloXPro achieves an exceptionally high safety structure. The press release notes that this reliability is comparable to that of a commercial airliner, establishing a new safety standard within Germany’s ultralight aircraft category. Furthermore, this shared technological foundation helps reduce costs, enabling more attractive pricing for both private individuals and commercial operators.

Configurations and Pilot Training

Customizable Features for Diverse Users

Thanks to its modular architecture, the VoloXPro offers numerous equipment variants. Customers can choose from cost-efficient minimalist cockpits to high-end professional configurations. Available features include single-stick control, a single-screen glass cockpit, collision warning assistance systems, fast charging capabilities, and various battery options. Buyers can also customize interior design elements and exterior paintwork.

In the realm of aviation education, the aircraft is positioned as a new benchmark for powered-lift pilot training. It combines advanced flight-assistance technology with aviation-grade safety standards to reduce pilot workload and enhance situational awareness. The fully electric aviation propulsion and fly-by-wire architecture are designed to prepare aspiring pilots for the transition to emerging eVTOL (electric vertical takeoff and landing) aircraft.

“Thanks to the fly-by-wire control system, flying is easier than ever before, and all of it is low-noise and emissions-free.”

, David Bausek, Volocopter

AirPro News analysis

We view the introduction of the VoloXPro as a strategic pivot for Volocopter, diversifying its revenue streams while awaiting broader commercial air taxi regulations. By targeting the ultralight category and flight schools, the company can monetize its existing VoloCity research and development investments much sooner.

Furthermore, embedding this technology into training environments ensures a future pipeline of pilots already accustomed to Volocopter’s fly-by-wire systems. If the targeted late-2026 German certification is achieved, it could provide the company with a crucial early-mover advantage in the European electric aviation market.

Frequently Asked Questions

What is the VoloXPro?
It is a newly developed, electrically powered ultralight multicopter produced by Volocopter, designed for both recreational use and professional pilot training.

When will the VoloXPro be certified?
According to the company, ultralight aircraft certification is planned for Germany at the end of 2026, alongside parallel approvals in other European countries.

What are the primary uses for the aircraft?
In Europe, it targets flight schools, flying clubs, and sightseeing operators. Internationally, it is intended for professional passenger transport as an air taxi.

Sources: Volocopter

Photo Credit: Volocopter

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