Sustainable Aviation
Bell 505 Achieves Over 700 Flight Hours with Sustainable Aviation Fuel
Bell 505 surpasses 700 hours on blended Sustainable Aviation Fuel demonstrating reliable, daily use in training operations.
We are witnessing a pivotal shift in the rotorcraft industry as manufacturers move from theoretical demonstrations to practical, sustained applications of green technology. On November 24, 2025, during the European Rotors 2025 trade show in Cologne, Germany, Bell Textron Inc. announced a significant achievement in this domain. A dedicated Bell 505 helicopter has successfully surpassed 700 flight hours using blended Sustainable Aviation Fuel (SAF). This milestone marks a transition from short-term testing to long-term operational validation.
The flight hours were accumulated at the Bell Training Academy in Fort Worth, Texas. By utilizing a training aircraft for this initiative, Bell has demonstrated the viability of SAF in high-volume, daily operations. This is not merely a proof of concept, it is a stress test of the fuel’s reliability under the rigorous demands of pilot training. The initiative highlights the seamless integration of alternative fuels into existing platforms without disrupting standard operating procedures.
This achievement is the result of a strategic collaboration between Bell and Safran Helicopter Engines. It underscores a shared commitment to reducing the carbon footprint of vertical lift operations. As the aviation sector faces increasing pressure to meet global sustainability targets, data-driven milestones like this provide the necessary evidence to encourage broader adoption of SAF among operators and regulatory bodies.
The aircraft at the center of this milestone is the Bell 505 Jet Ranger X, a short light single-engine helicopter known for its versatility in corporate, public safety, and training missions. Powered by the Safran Arrius 2R engine, the aircraft utilized a specific type of fuel known as “blended SAF.” This mixture typically combines 30 to 50 percent pure sustainable fuel with conventional Jet A fuel. The accumulation of over 700 flight hours confirms that the engine and airframe can operate consistently on this blend without requiring mechanical modifications.
One of the most critical aspects of this program is the demonstration of “drop-in” capability. In the context of aviation, a drop-in fuel is one that can be substituted for conventional jet fuel within existing infrastructure and engines. The Safran Arrius 2R is currently certified to operate on up to a 50 percent SAF blend. By logging substantial hours at the Bell Training Academy, we see proof that operators can integrate these fuels into their current logistics chains without the need for expensive retrofits or specialized handling equipment.
The fuel for this initiative was supplied through partnerships with key industry providers, including Neste and Avfuel. These collaborations are essential for establishing a reliable supply chain, which remains one of the primary hurdles for widespread SAF adoption. The successful completion of these flight hours serves as a signal to the market that the hardware is ready, provided the fuel supply continues to scale to meet demand.
“Bell is proud to celebrate this next step in industry carbon reduction objectives. Working alongside Safran Helicopter Engines has given us the cutting-edge advantage of exploring opportunities in greener aviation practices.”, Robin Wendling, Managing Director of Europe, Bell. This 700-hour milestone is part of a broader timeline of sustainability efforts by Bell and its parent company, Textron. It supports Textron’s “Achieve 2025” Sustainable Footprint goal, which targets a 20 percent reduction in greenhouse gas (GHG) emissions across the enterprise. Furthermore, it aligns with the general aviation industry’s commitment to achieving net-zero carbon emissions by 2050. We recognize that incremental steps, such as validating blended fuels, are necessary precursors to achieving these ambitious long-term targets.
While the current operations utilize a blend, the technology is rapidly advancing toward higher concentrations of sustainable components. In February 2023, Bell and Safran achieved the world’s first single-engine helicopter flight using 100 percent SAF with the Bell 505. The current 700-hour achievement complements that breakthrough by focusing on endurance and daily utility rather than maximum capability. Safran has indicated that its engines will soon be capable of operating on 100 percent drop-in SAF, which would significantly maximize emission reductions. Commercial interest in the Bell 505 remains strong alongside these sustainability developments. At the same European Rotors 2025 event, German operator Heli Transair signed a purchase agreement for three additional Bell 505 aircraft. This suggests that the market is responding positively to the platform, viewing its compatibility with sustainable practices as a value-add rather than a compromise on performance or cost-efficiency.
“We are particularly pleased with these SAF flights in partnership with Bell. SAF is key towards more sustainable helicopter use… Very soon, our engines will be capable of 100% drop-in SAF, paving the way for wider use of this type of fuel.”, Jean-François Sauer, EVP Programs, Safran Helicopter Engines. The accumulation of over 700 flight hours on blended SAF by the Bell 505 represents a tangible step forward for sustainable rotorcraft operations. It moves the industry discussion from theoretical possibilities to proven realities, demonstrating that eco-friendly fuels can support the rigorous demands of pilot training and daily flight operations. By validating the performance of the Safran Arrius 2R engine with drop-in fuels, Bell has reduced the perceived risk for operators looking to transition to greener alternatives.
Looking ahead, the focus will likely shift toward increasing the availability of SAF and certifying engines for 100 percent sustainable fuel use. As manufacturers like Bell and Safran continue to refine the technology, and as supply chains mature, we anticipate that SAF will become a standard component of aviation logistics, driving the sector closer to its net-zero aspirations.
What is the significance of the 700-hour milestone? Does using SAF require changes to the helicopter engine? What is the difference between this milestone and the 2023 SAF flight?
Bell 505 Surpasses 700 Flight Hours on Sustainable Aviation Fuel
Operational Reliability and Technical Specifications
Strategic Implications and Future Roadmap
Conclusion
FAQ
This milestone proves that the Bell 505 can operate reliably on blended Sustainable Aviation Fuel (SAF) over a long period in a high-volume training environment, validating the fuel for daily use.
No. The blended SAF used is considered a “drop-in” fuel, meaning it requires no modifications to the Safran Arrius 2R engine or the airframe.
The February 2023 flight demonstrated the capability to fly on 100% SAF. The current milestone focuses on the endurance and operational reliability of using blended SAF over 700 accumulated flight hours.
Sources
Photo Credit: Textron
Sustainable Aviation
Honeywell and Verso Energy to Expand eSAF Production Globally
Honeywell and Verso Energy partner to deploy eSAF technology at seven sites in France, Finland, and the US, producing low-carbon aviation fuel.
This article is based on an official press release from Honeywell and additional project documentation.
CHARLOTTE, N.C., In a significant move to scale the production of SAF, Honeywell announced on February 24, 2026, that Verso Energy has selected its UOP eFining™ technology for seven planned production facilities. The agreement covers projects in France, Finland, and the United States, aiming to produce low-carbon electro-sustainable aviation fuel (eSAF) to meet growing regulatory demands.
According to the announcement, Verso Energy, an integrated energy company specializing in low-carbon molecules, will utilize Honeywell’s methanol-to-jet (MTJ) processing solution. Once fully operational, these facilities are projected to produce approximately 200 million gallons of eSAF annually. The partnership leverages Honeywell’s standardized design to reduce capital expenditures and accelerate the timeline for bringing these fuels to market.
The core of this Partnerships is Honeywell’s UOP eFining™ technology, which converts eMethanol, produced from carbon dioxide captured from biological sources and green Hydrogen, into sustainable aviation fuel. This process allows for the creation of “drop-in” fuels that require no modifications to aircraft engines or existing airport infrastructure.
Honeywell reports that eSAF produced through this method can reduce greenhouse gas (GHG) emissions by 88% compared to conventional jet fuel. Barry Glickman, Vice President of Honeywell Low Carbon Energy, emphasized the strategic importance of feedstock flexibility in a company statement:
“Honeywell’s innovative SAF technology portfolio is designed to address two of the biggest challenges in renewable fuel production, cost and feedstock availability. With our eFining technology, companies like Verso Energy can use abundant carbon dioxide as feedstock, making eSAF production scalable and less carbon intensive.”
By utilizing biogenic CO2 rather than lipid-based feedstocks (such as waste oils) used in other SAF production methods, the partnership aims to bypass supply constraints that often limit the scalability of renewable fuels.
The seven planned facilities are strategically located to leverage local industrial infrastructure and renewable energy sources. According to project details released alongside the announcement, the portfolio includes four sites in France, two in Finland, and one in the United States.
In France, Verso Energy is advancing four projects, including the flagship “DEZiR” project in Petit-Couronne (Normandie) and “ReSTart” in Tartas. Both projects have received support from the EU Innovation Fund. The DEZiR facility is expected to be among the first large-scale eSAF plants in Europe, with operations targeted to begin in 2030. In Finland, facilities are planned for the Port of Oulu and Tornio. These sites were selected for their access to biogenic CO2 from the forestry industry and the availability of renewable electricity required for green hydrogen production.
The partnership also marks Verso Energy’s expansion into the U.S. market, with a facility planned for Jesup, Georgia. Similar to the Finnish sites, this location offers access to forestry byproducts and renewable power potential.
The acceleration of these projects is heavily influenced by the European Union’s ReFuelEU Aviation initiative. This regulation mandates that aviation fuel suppliers blend increasing amounts of SAF into their supply, with a specific sub-mandate requiring synthetic fuels (like eSAF) to comprise at least 35% of the fuel mix by 2050.
Antoine Huard, CEO of Verso Energy, highlighted the necessity of cost efficiency in meeting these mandates:
“Efficient and cost-effective eSAF production will be crucial for helping airlines comply with regional adoption requirements. Honeywell’s proven SAF technology paired with our standardized design approach will enable us to quickly scale production capabilities and bring additional eSAF to the market sooner, helping to meet growing global demand.”
The collaboration between Honeywell and Verso Energy highlights a critical pivot in the sustainable aviation sector: the shift from HEFA (Hydroprocessed Esters and Fatty Acids) to Power-to-Liquid (PtL) solutions. While HEFA currently dominates the SAF market, it is constrained by the finite supply of waste oils and fats. eSAF, derived from CO2 and hydrogen, offers theoretically unlimited scalability, provided that renewable electricity is abundant and affordable.
However, the economic viability of eSAF remains a hurdle due to high energy costs. Honeywell’s emphasis on a “standardized design” suggests a strategy focused on modularity to drive down CAPEX, a necessary step if eSAF is to compete with conventional jet fuel without relying entirely on heavy subsidies. The geographic spread of these plants, particularly the entry into Georgia, USA, indicates that Verso is hedging its bets across different regulatory environments, anticipating that the U.S. may eventually adopt synthetic fuel incentives similar to Europe’s ReFuelEU.
What is eSAF? When will these facilities be operational? Does eSAF require new airplanes? Sources:
Honeywell and Verso Energy Partner to Deploy eSAF Technology Across Seven Global Sites
Scaling Methanol-to-Jet Technology
Strategic Locations and Project Details
European Expansion
United States Market Entry
Regulatory Drivers and Market Demand
AirPro News Analysis
Frequently Asked Questions
eSAF (electro-sustainable aviation fuel) is a synthetic fuel made by combining green hydrogen (produced via electrolysis using renewable energy) and captured carbon dioxide. It is chemically similar to fossil-based jet fuel but has a significantly lower carbon footprint.
The first major facility, Project DEZiR in France, is scheduled to enter operation in 2030. Timelines for the other six facilities will follow based on permitting and construction schedules.
No. eSAF is a “drop-in” fuel, meaning it can be blended with conventional jet fuel and used in existing aircraft engines and fuel infrastructure.
Honeywell Press Release,
Verso Energy Corporate Data
Photo Credit: Honeywell
Sustainable Aviation
SkyNRG Closes Financing for Europe’s First Standalone SAF Plant
SkyNRG reaches financial close for DSL-01, Europe’s first standalone SAF plant in the Netherlands, targeting full operations by mid-2028.
This article is based on an official press release from SkyNRG and accompanying project documentation.
SkyNRG has officially reached financial close for DSL-01, its first dedicated commercial-scale Sustainable Aviation Fuel (SAF) production facility. Located in Delfzijl, Netherlands, the project marks a significant milestone in the European aviation sector’s transition to renewable energy. According to the company’s announcement, construction on the facility has already commenced, with full operations targeted for mid-2028.
The DSL-01 project is distinguished as Europe’s first standalone greenfield SAF plant, meaning it is being built from the ground up rather than as an expansion of an existing fossil fuel refinery. Once operational, the facility is projected to produce 100,000 tonnes of SAF annually, alongside 35,000 tonnes of by-products including bio-propane and naphtha.
Maarten van Dijk, CEO and Co-Founder of SkyNRG, emphasized the strategic importance of this development in a statement regarding the launch:
“Reaching this important milestone… marks an important step in our transition to becoming an owner and operator of SAF production capacity. This milestone demonstrates growing market confidence in scalable SAF production and provides a model for future sustainable fuel projects globally.” The facility will utilize Topsoe’s HydroFlex™ technology, operating on the Hydroprocessed Esters and Fatty Acids (HEFA) pathway. SkyNRG has stated that the plant will process waste oils and fats,predominantly sourced from regional industries,and will explicitly exclude virgin vegetable oils such as palm or soy to avoid competition with food supplies. The project aims to deliver a lifecycle CO2 emissions reduction of more than 85% compared to fossil jet fuel.
Technip Energies has been awarded the Engineering, Procurement, and Construction (EPC) contract for the site. While specific contract values are often confidential, industry reports estimate the value between €500 million and €1 billion. The construction phase is expected to generate hundreds of jobs in the Groningen Seaports region, contributing to the area’s developing green industrial cluster.
A critical aspect of the DSL-01 project is its financial structure. It is the first commercial-scale SAF plant to secure non-recourse project financing, a move that signals increasing maturity in the SAF market. Under this structure, lenders are repaid based on the project’s future cash flow rather than the general assets of the parent company.
The investment consortium includes: Arjan Reinders, Head of Infrastructure Europe at APG, noted the alignment of this investment with broader sustainability goals:
“SkyNRG represents the first investment in the SAF sector on behalf of our client [ABP], which is closely aligned with our ambition to create impact by investing at the forefront in energy transition assets.” To ensure the commercial viability of the plant, SkyNRG has secured long-term offtake agreements. KLM Royal Dutch Airlines has committed to purchasing 75,000 tonnes of SAF annually for a period of 10 years. This volume represents three-quarters of the plant’s total SAF output and is essential for KLM to meet upcoming EU mandates under the ReFuelEU Aviation Regulation.
Additionally, SHV Energy has agreed to purchase the bioLPG (bio-propane) by-products produced by the facility. Shell, a strategic partner of SkyNRG since 2019, retains an option to purchase SAF from the plant and continues to provide technical and commercial expertise.
The successful financial close of DSL-01 represents a pivotal moment for the SAF industry, specifically regarding “bankability.” Historically, SAF projects have struggled to attract traditional project finance due to perceived technology and market risks. The willingness of a major banking syndicate to provide non-recourse debt suggests that financial institutions now view HEFA-based SAF production as a stable asset class.
Furthermore, the timing of this project aligns directly with the European Union’s “Fit for 55” regulatory package. With the ReFuelEU Aviation Regulation mandating a 2% SAF blend by 2025 and rising to 6% by 2030, the DSL-01 facility will come online just as demand pressures intensify. Unlike competitors expanding existing refineries, SkyNRG’s success with a standalone greenfield site provides a “proof of concept” that could accelerate the development of similar independent facilities globally, such as their planned projects in the United States and Sweden.
Sources:
SkyNRG Reaches Financial Close on Europe’s First Standalone Greenfield SAF Plant
Project Specifications and Technology
Financial Structure and Investment Partners
Strategic Partnerships and Offtake Agreements
AirPro News Analysis
Photo Credit: SkyNRG
Sustainable Aviation
Asia-Pacific Aviation Growth and Sustainable Aviation Fuel Initiatives 2026
Asia-Pacific aviation growth faces decarbonization challenges with new SAF mandates and Airbus’s just transition strategy at Singapore Airshow 2026.
This article is based on an official press release from Airbus and additional industry reporting regarding the Singapore Airshow 2026.
As the aviation industry gathers for the Singapore Airshow 2026, the Asia-Pacific (APAC) region stands as the focal point of global aerospace growth. According to recent industry forecasts, APAC is projected to account for over 50% of global aviation growth between 2025 and 2026. However, this rapid expansion presents a critical challenge: reconciling a forecast 7.3% increase in passenger traffic with urgent decarbonization goals.
In a press release issued on February 2, 2026, Airbus outlined a strategy focused on a “just transition.” The European manufacturer argues that the adoption of Sustainable Aviation Fuel (SAF) in Asia-Pacific offers more than just environmental compliance; it presents a pathway for regional socioeconomic development and energy sovereignty.
While the primary driver for SAF adoption globally has been carbon reduction, Airbus emphasizes that for the APAC region, the benefits are deeply tied to local economic resilience. The region possesses abundant feedstock potential, including agricultural residues, used cooking oil, and palm oil waste.
According to the Airbus announcement, utilizing agricultural waste for fuel production addresses multiple local issues simultaneously. In many parts of Asia, the burning of agricultural fields contributes significantly to seasonal air pollution. By converting this biomass into SAF, the region can reduce local smog while creating new revenue streams for rural communities.
Airbus describes this approach as a “just transition,” ensuring that the shift to green energy supports developing economies rather than hindering them. The manufacturer notes that developing local production capabilities also boosts “regional energy sovereignty,” reducing the reliance on imported fossil fuels.
“Given the broad socioeconomic diversity… Asia-Pacific is a prime place to demonstrate the possibilities for a just transition. Leveraging co-benefits could open opportunities to build community resilience.”
, Airbus Press Release, February 2, 2026
Beyond manufacturer initiatives, government policy in the region is hardening. Data released in conjunction with the Singapore Airshow highlights a wave of new mandates and targets aimed at accelerating SAF uptake. Most notably, Singapore has confirmed the introduction of a SAF levy for all flights departing from Changi Airport starting October 1, 2026. This levy is designed to fund a national 1% SAF target by the end of the year, with plans to scale to 3-5% by 2030.
Other regional developments include:
The push for decarbonization is also visible on the tarmac. During the Singapore Airshow, an Airbus A350-1000 is performing flying displays powered by a 35% SAF blend. The fuel, supplied by Shell Aviation, was produced via the HEFA-SPK pathway using used cooking oil and tallow.
In a significant move for propulsion technology, Airbus, CFM International, and the Civil Aviation Authority of Singapore (CAAS) signed a Memorandum of Understanding (MOU) on February 2. This agreement establishes Singapore as the world’s first airport testbed for the “RISE” (Revolutionary Innovation for Sustainable Engines) program. The initiative aims to test “Open Fan” engine architecture, which targets a 20% improvement in fuel efficiency.
Additionally, Airbus and Cathay Group have reiterated their commitment to a US$70 million joint investment, originally announced in late 2025, to accelerate SAF production projects with commercial viability in the region.
While the regulatory and technological momentum is palpable, a stark reality remains. Industry data indicates that global SAF output reached only 1.9 million tonnes in 2025, representing a mere 0.6% of total jet fuel demand. With APAC passenger traffic expected to grow by 7.3% in 2026, the gap between demand for travel and the supply of green fuel is widening.
The “green premium”, where SAF costs 2x to 4x more than conventional jet fuel, remains the primary hurdle. While the “just transition” narrative provided by Airbus offers a compelling long-term vision for feedstock utilization, the immediate success of these initiatives will depend heavily on whether the new levies and investments can bridge the price gap quickly enough to meet the 2027-2030 mandates.
What is the “Just Transition” in aviation? When does the Singapore SAF levy begin? What is the current global supply of SAF? Sources:
Asia-Pacific Aviation at a Crossroads: Balancing Growth with a “Just Transition”
The Socioeconomic Case for SAF
Turning Waste into Wealth
Regulatory Momentum and National Mandates
Technological Milestones at Singapore Airshow 2026
New Partnerships
AirPro News Analysis
Frequently Asked Questions
In this context, it refers to decarbonizing aviation in a way that provides economic benefits to developing nations, such as creating jobs in rural areas by using agricultural waste for fuel production.
The levy applies to all flights departing Singapore starting October 1, 2026.
As of 2025, SAF production accounted for approximately 0.6% of total global jet fuel usage.
Airbus,
IATA,
Civil Aviation Authority of Singapore
Photo Credit: Airbus
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