Technology & Innovation
Singapore First Airport Testbed for CFM Open Fan Engines
Singapore selected as the first airport testbed for CFM’s Open Fan engines, advancing sustainable aviation with trials at Changi and Seletar Airports.

This article is based on an official press release from CFM International, Airbus, and the Civil Aviation Authority of Singapore (CAAS).
Singapore Selected as World’s First Airport Testbed for CFM’s Open Fan Engines
In a significant step toward the next generation of sustainable aviation, the Civil Aviation Authority of Singapore (CAAS), CFM International, and Airbus have signed a landmark Memorandum of Understanding (MOU). Announced on February 2, 2026, at the 3rd Changi Aviation Summit, the agreement designates Singapore as the first global airport testing ground for CFM’s “Revolutionary Innovation for Sustainable Engines” (RISE) program, specifically focusing on the integration of Open Fan engine architecture into commercial airport operations.
According to the joint announcement, the collaboration aims to develop the necessary infrastructure, ground safety protocols, and regulatory frameworks required to support aircraft powered by Open Fan engines. This initiative positions Singapore as a “living lab” for aerospace innovation, leveraging its status as a highly regulated and efficient air hub to de-risk the entry-into-service of these advanced propulsion systems.
Establishing a Global Readiness Framework
The core objective of the MOU is to move the RISE program from technical development to operational reality. While engine testing often occurs in isolated facilities, this partnership focuses on how these distinct engines will interact with a busy airport environment. The signatories, including CAAS Director-General Han Kok Juan, Safran Singapore CEO David Dufrenois (representing CFM), and Airbus Executive Vice-President Engineering Rémi Maillard, outlined a plan to conduct operational trials at Singapore Changi Airport or Seletar Airport.
These trials will inform the co-development of a “readiness framework.” This guide is intended to serve as a blueprint for airports worldwide, covering critical operational areas such as:
- Ground Safety: Protocols for protecting ground crew working near exposed rotating blades.
- Infrastructure Compatibility: Ensuring jet bridges, refueling trucks, and ground support equipment can accommodate the unique geometry of Open Fan engines.
- Debris Management: Mitigating Foreign Object Debris (FOD) risks on runways and taxiways.
In a statement regarding the partnership, Gaël Méheust, President and CEO of CFM International, emphasized the importance of real-world testing:
“This first-of-its-kind agreement is a huge boon for the CFM RISE development program… Now, having the ability to perform a real-world demonstration ‒ from ground handling to maintenance actions, to airport operations ‒ will give airlines and, hopefully, the flying public, confidence in the safety, durability, and efficiency of Open Fan.”
The RISE Program and Open Fan Technology
Launched in 2021 by CFM International, a 50/50 joint venture between GE Aerospace and Safran Aircraft Engines, the RISE program targets the mid-2030s for the entry of a new generation of single-aisle aircraft. The program’s centerpiece is the Open Fan architecture, which removes the traditional engine nacelle (casing) to allow for a significantly larger fan size.
According to technical data released by CFM, this design increases the bypass ratio and propulsive efficiency, targeting a 20% reduction in fuel consumption and CO2 emissions compared to today’s most efficient engines, such as the LEAP. The system is also designed to be fully compatible with 100% Sustainable Aviation Fuel (SAF) and future hydrogen propulsion systems.
Rémi Maillard of Airbus highlighted the necessity of this partnership for maturing the technology:
“We are excited to be partnering with CAAS and CFM to take new propulsion system technologies to the next level of maturity by testing them against future operational requirements. And what better place to do it than in Singapore where we can rely on a state-of-the-art aerospace ecosystem.”
AirPro News Analysis: Bridging the Operational Gap
While the aerodynamic and thermodynamic benefits of Open Fan architectures have been studied for decades, the operational logistics have remained a significant hurdle. Historically, open rotor designs raised concerns regarding noise and blade containment. The RISE program addresses the noise issues through advanced blade geometry and acoustics, aiming to meet Chapter 14 noise regulations.
However, the operational shift is equally profound. Current airport infrastructure is designed around tube-and-wing aircraft with enclosed engines. Introducing exposed rotors requires a complete rethink of ground handling procedures, from how catering trucks approach the fuselage to how passengers board via stairs. By securing Singapore as a testbed, CFM and Airbus are acknowledging that the success of the RISE program depends as much on airport logistics as it does on engine performance.
Strategic Alignment with Singapore’s Sustainability Goals
The agreement aligns with the Singapore Sustainable Air Hub Blueprint, launched in February 2024, which sets a national target for net-zero aviation emissions by 2050. Han Kok Juan, Director-General of CAAS, noted that the partnership validates Singapore’s role as an integrated air hub with the regulatory expertise necessary to develop protocols for global deployment.
The timeline for the project suggests that the “readiness framework” will be developed between 2026 and 2030, followed by physical trials involving ground runs and potential flight visits by demonstrators. This preparation is critical for meeting the mid-2030s target for commercial service.
Frequently Asked Questions
What is an Open Fan engine?
An Open Fan engine is a propulsion system where the fan blades are not enclosed by a traditional nacelle (casing). This allows for a much larger fan diameter, which improves propulsive efficiency and significantly reduces fuel burn and emissions.
When will passengers fly on planes with these engines?
The RISE program targets the mid-2030s for the entry-into-service of aircraft powered by these technologies. The current phase involves technology maturation and ground/flight testing.
Why is Singapore the testbed?
Singapore was selected due to its status as a major global air hub, its strong regulatory framework under CAAS, and its commitment to sustainable aviation through the Singapore Sustainable Air Hub Blueprint.
Sources:
CFM International Press Release
Airbus Press Release
Photo Credit: GE Aerospace
Technology & Innovation
Heart Aerospace ES-36 Unveiled With JSX Order for 100 Aircraft
Heart Aerospace unveiled the ES-36 hybrid-electric airliner with a deposit-backed JSX order for up to 100 aircraft and a 2031 service target.

Swedish manufacturer Heart Aerospace unveiled the ES-36 hybrid-electric regional airliner on September 23, 2026, securing a deposit-backed orders from United States public charter carrier JSX for up to 100 Commercial-Aircraft. The commitment includes 50 firm orders and 50 purchase rights, providing a major financial endorsement for the newly redesigned twin-engine production model.
In a press release issued on September 23, 2026, Heart Aerospace detailed the transition from its previously announced ES-30 to the larger ES-36. The updated design offers a 20 percent increase in payload capacity and shifts to a simplified two-nacelle configuration, driven by data gathered from the mid-August 2026 first flight of the company’s X1 demonstrator aircraft.
Design Evolution and Performance Specifications
The ES-36 represents a significant structural and Propulsion pivot for Heart Aerospace. The aircraft features a 95-foot wingspan, which is approximately 11 feet shorter than the preceding ES-30 design. The propulsion system has been streamlined from four propellers to two, utilizing twin series-hybrid powertrains. Each Electric-Aviation motor generates 1.65 megawatts of power.
According to reporting by FLYING Magazine, the ES-36 marks a return to a series-hybrid configuration after the manufacturer temporarily explored an independent hybrid system starting in May 2024. The finalized architecture targets an all-electric range of 125 miles (200 kilometers) and a maximum hybrid range of 745 miles (1,200 kilometers), inclusive of standard reserves.
Heart Aerospace Chief Technology Officer Ben Stabler stated that the design changes stem directly from the X1 demonstrator testing program.
“The ES-36 design is a direct result of what Heart learned designing, building, testing and flying our X1 demonstrator aircraft. Those learnings have helped us make the production aircraft more capable in the air and more productive for operators.”
JSX Fleet Strategy and Route Network
The JSX order advances the carrier’s strategy to deploy zero-emission-capable aircraft on short regional segments. While the ES-36 is designed for 36 passengers, JSX operates under Federal Aviation Administration (FAA) Part 135 Regulations. This regulatory framework legally limits passenger capacity to 30 seats, dictating how the carrier will configure its incoming fleet.
Aviation Week reported that JSX intends to utilize the ES-36 for high-frequency, short-distance routes that are economically unviable for conventional turboprops or regional jets. JSX Chief Executive Officer Alex Wilcox highlighted historical routes along the California coast, such as flights between Santa Monica and Santa Barbara, as prime candidates for the hybrid-electric aircraft.
A key operational advantage for JSX is the reduced maintenance burden of electric propulsion. Wilcox noted to Aviation Week that electric motors lack the cycle sensitivity inherent to traditional turbofan and turboprop engines, allowing for point-to-point flying without prohibitive wear-and-tear costs. Heart Aerospace projects the ES-36 will deliver operating costs at least 40 percent lower than legacy regional aircraft.
Certification Timeline and Market Outlook
The JSX agreement builds upon an initial letter of intent signed in 2023 for the earlier ES-30 model. Heart Aerospace Founder and Chief Executive Officer Anders Forslund credited the charter carrier for championing electric aviation early in the development cycle.
Heart Aerospace is targeting the second half of 2028 for the first flight of the ES-36. The manufacturer anticipates achieving FAA Part 25 certification and subsequent entry into service by 2031.
AirPro News analysis
The transition from the ES-30 to the ES-36 demonstrates a maturation in Heart Aerospace’s design philosophy, prioritizing aerodynamic efficiency and payload over the complexity of a four-engine distributed propulsion system. By securing a firm, deposit-backed commitment from an established operator like JSX, we view Heart Aerospace as having successfully validated its redesign in the commercial market. The 1,415-pound payload increase directly addresses a common vulnerability in early electric aircraft designs, where heavy battery systems often severely restrict practical passenger and cargo capacity. If the 2031 entry-into-service target holds, the ES-36 could become a foundational asset for operators looking to revive dormant short-haul regional networks.
Sources: Heart Aerospace
Photo Credit: Heart Aerospace
Technology & Innovation
Electra.aero EL2 Completes Heliport Flights at Virginia Airports
Electra.aero flew its EL2 demonstrator from commercial heliports in Virginia under the FAA’s AAM Integration Pilot Program.

On September 22, 2026, Electra.aero, Inc. announced the successful completion of test flights operating its hybrid-electric EL2 Ultra Short technology demonstrator from a commercial airport heliport in Virginia. The flights demonstrated the ability of fixed-wing aircraft to utilize vertical flight infrastructure and helicopter-specific instrument procedures, establishing a framework for expanding airport capacity without increasing runway congestion.
In a press release issued on September 22, 2026, the company detailed operations conducted in coordination with the Federal Aviation Administration (FAA) electric Vertical Takeoff and Landing (eVTOL) and Advanced Air Mobility (AAM) Integration Pilot Program. The testing validates the operational model for Electra’s upcoming nine-passenger EL9 aircraft.
Validating Ultra Short operations at commercial Airports
The flight test campaign focused on executing point-in-space procedures and dedicated instrument routings. Electra’s EL2 demonstrator successfully took off and landed on small heliports, vertiports, and taxiways that have historically been restricted to rotorcraft. Operations were conducted at Roanoke–Blacksburg Regional Airport (KROA), Virginia Tech/Montgomery Regional Airport (KBCB), and Allan C Perkinson/Blackstone AAF Airport (KBKT), alongside additional sites in Newport News and Richmond.
Electra Chief Executive Officer Marc Allen stated the Virginia flights provide a preview of future airspace integration.
“We showed that fixed-wing, Ultra Short aircraft can use vertical flight landing areas and a new generation of instrument procedures to reach places conventional airplanes were never designed to access. This will both bring air service closer to the passenger and also expand capacity at commercial airports in completely non-congestive ways,” Allen said.
Regulatory coordination and future integration
The testing represents the culmination of a year-long effort between Electra, the FAA, the Virginia Smart Airspace Program, the Virginia Department of Aviation, and the Pennsylvania Department of Transportation (PennDOT) to develop flexible approach procedures for Ultra Short aircraft. By utilizing airspace and airport surfaces currently underutilized by conventional fixed-wing traffic, the operations aim to establish guidelines for integrating new aircraft classes into the National Airspace System.
Dr. Parker Vascik, Director of Product Strategy at Electra, described the flights as a foundational step for AAM operations.
“All in all, we demonstrated the core enabling principle of Ultra Short aircraft feeding into major airports in a manner that complements rather than burdens the air traffic system,” Vascik said.
Tombo Jones, Director of the Virginia Tech Mid-Atlantic Aviation Partnership, emphasized the necessity of practical flight testing to generate the operational data required to integrate new aircraft types safely and efficiently into the airspace system.
The EL9 production aircraft
The operational data gathered from the EL2 demonstrator flights will directly support the development and certification of Electra’s flagship EL9 Ultra Short aircraft. According to the company, the EL9 is designed to offer a 2.5x payload multiplier and a 10x range multiplier compared to standard helicopters and eVTOLs.
Operating costs for the EL9 are projected to be 70 percent lower than comparable rotorcraft. Electra reports holding more than 2,200 letters of intent from over 60 commercial customers for the production aircraft.
AirPro News analysis
The successful demonstration of fixed-wing operations on helicopter infrastructure addresses a primary bottleneck in the Advanced Air Mobility sector: ground infrastructure. By proving that the EL2 can utilize existing heliports and point-in-space instrument procedures, Electra bypasses the need for bespoke vertiport construction that many eVTOL manufacturers require. We view this as a significant regulatory and operational de-risking milestone for the EL9 program. If the FAA formally adopts these flexible approach procedures, Electra’s operators will gain immediate access to a vast network of underutilized urban and airport-adjacent landing sites.
Sources: Electra.aero, Inc.
Photo Credit: Electra aero
Technology & Innovation
Rolls-Royce to Lead ELEVATED Hybrid-Electric EU Project
Rolls-Royce leads the ELEVATED consortium under EU Clean Aviation, targeting 20% CO2 cuts with 2028 ground testing.

Rolls-Royce will lead a European consortium to develop and test a hybrid-electric gas-turbine propulsion system, targeting a minimum 20 percent reduction in aircraft-level carbon dioxide emissions for future short- to medium-range aircraft.
In a press release issued on September 18, 2026, the manufacturers announced its selection to head the ELEVATED project under the European Union’s Clean Aviation Joint Undertaking (CAJU). The initiative will embed a hybrid-electric subsystem into a donor engine for realistic ground testing, which is scheduled for 2028 using the Rolls-Royce UltraFan 30 narrowbody technology demonstrator.
Clean Aviation funding and consortium details
The ELEVATED project is one of 19 initiatives selected during the CAJU Call 4 funding round. The European Union allocated up to €290 million across these projects, generating a total public and private investments of €664 million. The broader Clean Aviation programme operates with a €4.1 billion budget, comprising €1.7 billion in EU funding and €2.4 billion from private sources.
Rolls-Royce Deutschland Ltd & Co KG will lead the ELEVATED consortium. The group includes academic, research, and industry partners distributed across France, Germany, the Netherlands, Norway, Spain, and the United Kingdom.
The overarching goal of the Clean Aviation programme for short- to medium-range and regional aircraft is a 30 percent reduction in emission footprint compared to 2020 state-of-the-art aircraft. The ELEVATED project specifically aims to advance hybrid-electric technology toward Technology Readiness Level 6 (TRL6).
Integration with the UltraFan 30 demonstrator
The project will utilize the UltraFan 30, a technology demonstrator designed by Rolls-Royce for narrowbody applications and engineered for compatibility with 100 percent sustainable aviation fuel (SAF). By integrating hybrid-electric elements into this architecture, the consortium intends to evaluate the performance impacts on thrust, fuel burn, noise, and durability.
Alan Newby, Director – Research & Technology at Rolls-Royce, stated that the project will generate data to validate modeling and inform future technology selection, product development, and certification planning.
“Together with the turbomachinery work being advanced through the ongoing UNIFIED project, it will help bring together the key technology paths needed to validate future UltraFan capability and support best-in-class performance in thrust, fuel burn, noise, emissions and durability,” Newby said in the company statement.
Additional hydrogen research initiatives
Alongside the ELEVATED project, Rolls-Royce confirmed its participation in two other newly announced Clean Aviation projects. The FARMAN project will focus on the development of hydrogen distribution systems for commercial aviation applications.
The company will also participate in the H-ELENA project, which is dedicated to advancing hydrogen engines for low-emission nitrogen oxide (NOx) architectures. Both projects align with the manufacturer’s broader research into alternative propulsion and fuel systems.
AirPro News analysis
The selection of Rolls-Royce to lead the ELEVATED project underscores the European aerospace sector’s reliance on established engine manufacturers to drive the transition toward hybrid-electric architectures. By anchoring the hybrid-electric subsystem testing to the UltraFan 30 demonstrator, we see a clear strategy to mature multiple technologies simultaneously. The 2028 ground testing target is ambitious but necessary if these propulsion systems are to reach TRL6 in time to influence the next generation of narrowbody aircraft designs expected in the 2030s.
Sources: Rolls-Royce
Photo Credit: Rolls-Royce
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