Technology & Innovation
H55 Delivers Certifiable Battery Modules to BRM Aero for Electric Aircraft
H55 delivers its first commercial certifiable propulsion battery modules to BRM Aero for the Bristell B23 Energic electric training aircraft, with deliveries set for 2027.

This article is based on an official press release from H55.
On April 8, 2026, the electric aviation sector reached a notable milestone. According to an official press release from Swiss electric propulsion specialist H55, the company has successfully delivered its first commercial, certifiable propulsion battery modules to Czech aircraft manufacturer BRM Aero. This hardware handover marks a critical transition for the Bristell B23 Energic program, a fully electric two-seater training aircraft, moving it from the development phase into mechanical integration and aircraft-level validation.
The market response to the Bristell B23 Energic has been robust. H55 reports that production capacity for the first two years is already completely sold out, driven by strong demand from flight schools across the United States and Europe. Based on the current timeline provided by the companies, the first commercial deliveries of the aircraft are officially scheduled for late 2027.
Transitioning from Development to Execution
The delivery of these conforming, certifiable battery modules proves H55’s capacity to manufacture aviation-grade energy storage systems that meet stringent regulatory standards. For BRM Aero, receiving these modules allows the manufacturer to advance into the final stages of aircraft-level validation, a necessary step before the aircraft can enter active service.
In the official company statement, H55 leadership emphasized the importance of this handover in the broader context of their production goals.
“The delivery of conforming modules marks a key step toward commercializing the Bristell B23 Energic. With strong market demand already materializing, we are now moving decisively from development into scaled execution.”
The Bristell B23 Energic
Developed jointly by BRM Aero and H55, the Bristell B23 Energic is specifically targeted at the rapidly growing electric pilot training market. According to the press release, the aircraft offers zero-emission operations, significantly reduced operating and maintenance costs, quieter flights, and lower energy consumption compared to traditional piston-engine aircraft.
For flight schools, the aircraft is positioned as a practical, commercially viable pathway to decarbonize their fleets without compromising safety, performance, or operational efficiency.
“The Bristell B23 Energic represents a major step forward in making electric aviation a practical reality for pilot training. Working with H55 allows us to integrate a propulsion solution that meets both certification and operational requirements, bringing us closer to delivering a commercially viable electric aircraft.”
The Companies Behind the Milestone
The partnership brings together two established entities in the European aviation landscape, combining specialized electric propulsion technology with scaled airframe manufacturing.
H55’s Certification-Grade Technology
Based in Sion, Switzerland, H55 is a technological spin-off from the historic Solar Impulse program, which completed the first solar-powered global flight. The company builds on over two decades of hands-on electric aviation experience. H55 specializes in transforming commercial lithium cells into aviation-safe, certification-grade Energy Storage Systems (ESS). According to the company, their systems feature independent cell characterization, redundant safety architectures, and rigorous testing designed around worst-case failure scenarios. To date, H55 has accumulated over 2,000 hours of fully electric flight across multiple aircraft with zero battery-related incidents.
BRM Aero’s Manufacturing Pedigree
Founded in 2009 by Milan and Martin Bristela, BRM Aero is based in Kunovice, Czech Republic. The company is a highly respected manufacturer of light sport and general aviation aircraft, producing over 110 aircraft annually at its in-house facility. BRM Aero distributes its aircraft through a network of more than 30 authorized global dealers. The manufacturer is known for producing FAA– and EASA-certified aircraft featuring all-metal airframes, modern Garmin avionics, and advanced safety features such as ballistic parachute systems.
Industry Context and Market Demand
AirPro News analysis
At AirPro News, we observe that the pilot training market serves as the ideal launchpad for the broader adoption of electric aviation. Training flights typically last around one hour, which aligns perfectly with the current energy density limitations of modern battery technology. Furthermore, flight schools operate on notoriously tight margins. Transitioning from internal combustion engines, which require frequent, expensive maintenance and costly aviation fuel, to electric motors drastically lowers the total cost of ownership.
However, the most significant barrier in this sector remains the certification hurdle. The aviation industry is highly regulated, and while many startups can successfully fly experimental electric planes, engineering a battery system that regulators like EASA and the FAA will approve is the primary bottleneck. Regulators require strict adherence to safety standards, particularly regarding thermal runaway containment and system redundancy. H55’s delivery of “conforming certifiable” modules is a massive differentiator, indicating that the company is successfully navigating this complex regulatory gauntlet and moving the industry closer to standardized electric flight.
Frequently Asked Questions (FAQ)
- What is the Bristell B23 Energic?
It is a fully electric two-seater training aircraft developed jointly by Czech aircraft manufacturer BRM Aero and Swiss electric propulsion specialist H55. - When will the Bristell B23 Energic be available?
According to H55, the first two years of production capacity are already sold out, with the first commercial deliveries scheduled for late 2027. - Why are flight schools adopting electric aircraft?
Electric aircraft offer zero-emission operations, quieter flights, and significantly lower operating and maintenance costs compared to traditional piston-engine aircraft, making them economically attractive for flight schools.
Sources:
H55 Official Press Release
Photo Credit: H55
Technology & Innovation
GE Aerospace Completes First Hybrid-Electric Flight Above 30,000 Feet
GE Aerospace, NASA, BETA Technologies, and Boeing achieve world’s first hybrid-electric flight above 30,000 feet on a Saab 340B testbed.

GE Aerospace, in collaboration with NASA, BETA Technologies, and Boeing, has successfully completed the world’s first flight of a hybrid-electric aircraft above 30,000 feet.
The milestone, announced in a July 20 press release during the Farnborough International Airshow, utilized a modified Saab 340B testbed to demonstrate the viability of megawatt-class hybrid propulsion at altitudes typical for commercial regional aviation.
Engineering the hybrid-electric testbed
The testbed aircraft, a Saab 340B that standardly seats 30 to 36 passengers, features a unique asymmetrical propulsion setup. The left wing retains a standard GE CT7 turboprop engine. The right wing houses a fully integrated megawatt-class, multi-kilovolt hybrid-electric propulsion system.
Multiple aerospace manufacturers collaborated to integrate the experimental hardware onto the regional airframe. Boeing subsidiary Aurora Flight Sciences supplied the modified, inverted nacelle required to house the hybrid system, while BAE Systems provided the battery architecture.
BETA Technologies Founder and CEO Kyle Clark highlighted the dual benefits of the configuration in a statement provided by GE Aerospace.
This hybrid electric system improved the high-altitude performance and climb capability while creating a flying laboratory to inform all future hybrid designs.
Flight testing and transatlantic journey
The aircraft completed its initial flight in the hybrid-electric configuration on May 3, 2026. The high-altitude milestone occurred shortly after on May 20, 2026, when the aircraft exceeded 30,000 feet. During the testing phase, the longest single flight in hybrid-electric operation lasted more than two hours.
Following domestic testing in the United States, BETA Technologies pilots ferried the aircraft across the Atlantic Ocean for its public debut at Farnborough. The transatlantic journey included stops in Newfoundland, Greenland, Iceland, and Scotland. During each leg, the hybrid system was engaged to provide electric assist during climbs and to recharge the batteries using a generate mode.
GE Aerospace Chairman and CEO H. Lawrence Culp, Jr. described the achievement as a historic moment for the aviation industry, noting the partnership’s goal to accelerate hybrid-electric technology to meet customer demands for efficiency, durability, and range.
NASA partnership and future implications
The development of the megawatt-class powertrain stems from a 2021 contract awarded to GE Aerospace under the NASA Electrified Powertrain Flight Demonstration (EPFD) project. The contract, valued at $179 million, funded the design, build, and flight testing of the hybrid system.
AirPro News analysis
We view the 30,000-foot milestone as a critical validation point for hybrid-electric architectures in regional commercial aviation. While fully electric propulsion remains constrained by battery energy density limitations for passenger aircraft, hybrid systems offer a pragmatic transitional step. By utilizing electric assist during high-thrust phases like takeoff and climb, operators can significantly reduce fuel burn and emissions without sacrificing the range and payload capabilities required for profitable regional routes. The successful transatlantic ferry flight demonstrates the operational robustness of the system outside a highly controlled local test environment.
Sources: GE Aerospace
Photo Credit: GE Aerospace
Technology & Innovation
Airbus A380 Flight Lab Unveiled for CFM RISE Open Fan Testing
Airbus and CFM International unveil A380 flight lab livery at Farnborough 2026 for CFM RISE Open Fan engine tests.

Airbus SE and CFM International unveiled the livery for the Airbus A380 flight lab dedicated to testing the CFM RISE (Revolutionary Innovation for Sustainable Engines) Open Fan engine architecture at the Farnborough International Airshow on July 21, 2026.
The presentation coincides with the completion of the first conceptual flight test design review. The joint program between Airbus and CFM International, a 50/50 joint company between GE Aerospace and Safran Aircraft Engines, aims to reduce fuel consumption and carbon dioxide emissions by 20 percent compared to current commercial engines.
Transitioning to flight test preparation
The designated testbed aircraft, an Airbus A380 identified as Manufacturer Serial Number (MSN) 114, departed a six-year desert storage in France on July 16, 2026. The aircraft relocated to Shannon, Ireland, to undergo painting and structural modifications. Engineers will eventually mount the open fan engine in the number 2 position on the inboard left wing for the Test-Flights campaign.
CFM International recently completed the preliminary design review for the compact core system, open fan, and outlet guide vanes. Arjan Hegeman, Vice President of Future of Flight Engineering at GE Aerospace, stated that this milestone allows the Manufacturing of parts for the grounded demonstrator to begin.
Prioritizing engine durability
While the open fan design removes the traditional engine casing to accommodate a larger fan and reduce drag, program leaders are placing equal emphasis on component longevity. GE Aerospace has completed over 350 tests and 3,000 endurance cycles on core components, which includes early dust ingestion testing.
“If there’s anything we’ve learned over the last years, it’s that durability matters as much as, if not more than, fuel efficiency,” Hegeman said.
Hegeman noted that the engineering teams are aiming to reach technology readiness level six by the turn of the decade.
AirPro News analysis
The explicit focus on durability during the early testing phases of the CFM RISE program reflects a broader industry shift. Current-generation narrowbody engines have faced well-documented time-on-wing and maintenance challenges, prompting Manufacturers to prioritize robust operating characteristics alongside fuel efficiency gains. By subjecting core components to 3,000 endurance cycles and dust ingestion tests years before the first flight, CFM International is working to ensure the open fan architecture can withstand harsh operational environments from entry into service. We expect this dual mandate of efficiency and reliability to define the Certification pathway for next-generation Propulsion systems.
Sources: GE Aerospace Press Release
Photo Credit: GE Aerospace
Technology & Innovation
Joby Aviation and Toyota Form eVTOL Manufacturing Joint Venture
Joby Aviation and Toyota establish a joint venture to manufacture the S4 eVTOL, with Toyota holding a 51% stake.

Joby Aviation, Inc. (JOBY) and Toyota Motor Corporation (TM) have formalized their nearly decade-long partnership by establishing a joint venture to manufacture electric vertical take-off and landing (eVTOL) aircraft. The new entity, named the Joby Toyota Aero Manufacturing Preparation Company, will focus on scaling commercial production of the Joby S4 Series eVTOL aircraft.
Announced in a press release on June 30, 2026, following a U.S. Securities and Exchange Commission (SEC) 8-K filing on June 29, 2026, the alliance combines Joby’s electric aviation technology with Toyota’s established production systems expertise. The joint venture will operate across locations in Santa Cruz, California, and Toyota City, Japan.
Joint venture structure and financial stakes
Toyota holds a 51 percent majority stake in the new manufacturing company, acquired through the purchase of 1.02 million shares for $1.02 million. Joby retains the remaining 49 percent stake, having purchased 980,000 shares for $980,000. The joint venture will be governed by a five-member board of directors, with three members designated by Toyota and two designated by Joby.
The agreement includes specific intellectual property licensing arrangements between the two parent companies. Joby will license certain aircraft-related intellectual property to the joint venture on a royalty-free basis. In return, Toyota will license manufacturing-related intellectual property to the venture, which includes certain royalty-bearing rights.
Scaling eVTOL production
The formal joint venture builds upon a foundation of significant financial and technical support from the Japanese automaker. Toyota has provided approximately $900 million in total capital to Joby to date. The automaker is already providing technical assistance as Joby establishes a series production line for the S4 eVTOL aircraft at a facility in Ohio.
In the June 30 press release, Joby Aviation founder and CEO JoeBen Bevirt highlighted the depth of the corporate relationship.
“Toyota has been by Joby’s side for nearly a decade, providing invaluable guidance and support as we built the foundation for Manufacturing our aircraft. Today’s announcement reflects the strength of our relationship and our shared confidence in the opportunity ahead.”
Toyota Motor Corporation Chairman Akio Toyoda stated that the company views air mobility as a natural extension of its philosophy of providing mobility for all, expanding its focus from the ground into the sky to bring new value to society.
Certification progress and next steps
The manufacturing alliance aligns with Joby’s ongoing Certification efforts with the U.S. Federal Aviation Administration (FAA). During the first quarter of 2026, Joby began flying its first FAA-conforming aircraft for type inspection authorization. This testing phase is a required step as the company works toward achieving full FAA type certification for the S4 Series.
With the joint venture now legally established, the two companies will begin integrating their engineering and manufacturing teams across the California and Japan facilities to prepare for high-volume aircraft production.
AirPro News analysis
We view the formalization of the Joby Toyota Aero Manufacturing Preparation Company as a critical de-risking event for Joby’s production ambitions. While designing and certifying an eVTOL aircraft presents significant regulatory hurdles, manufacturing these vehicles at scale with automotive-style efficiency is an entirely different challenge that has historically troubled aerospace Startups. By securing a majority-stake commitment from Toyota, Joby gains direct access to one of the world’s most proven manufacturing systems. Furthermore, the intellectual property arrangement, where Toyota retains royalty-bearing rights on its manufacturing processes, suggests the automaker sees long-term revenue potential in aerospace production beyond its initial capital Investments.
Photo Credit: Joby Aviation
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