How Will CFM RISE Open-Fan Engines Change Airport Operations in Singapore?
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The Civil Aviation Authority of Singapore (CAAS), Airbus, and CFM International signed an MoU to establish the world's first airport testbed for RISE open-fan engines.
Key Takeaways
- •Singapore, CAAS, Airbus, and CFM International launched the world's first airport testbed for CFM RISE open-fan engines on February 2, 2026.
- •The RISE program targets over 20% better fuel efficiency and is compatible with 100% Sustainable Aviation Fuel (SAF).
- •The multi-year project will develop a global readiness framework covering infrastructure, ground operations, and regulatory standards.
- •The trials at Changi or Seletar Airport will address challenges posed by the open-fan's larger, unducted design.
The Civil Aviation Authority of Singapore (CAAS) has established a landmark partnership. The regulator, along with Airbus and CFM International, signed a Memorandum of Understanding (MoU). This agreement names Singapore as the world’s first airport testbed for next-generation aircraft propulsion.
The collaboration focuses on CFM’s Revolutionary Innovation for Sustainable Engines (RISE) program. Specifically, the trial will evaluate the CFM RISE open-fan engines architecture. The MoU was signed on February 2, 2026, at the 3rd Changi Aviation Summit.
This multi-year effort aims to develop a global readiness framework. This blueprint will guide airframers, airports, and airlines worldwide. It will cover the integration of open-fan technology into existing airport operations.
The RISE Open-Fan Technology
The RISE program centers on an innovative open-fan design. This architecture removes the traditional engine casing or duct. This allows for a much larger fan diameter. The goal is to significantly improve propulsive efficiency.
CFM targets more than 20 percent better fuel efficiency. This is compared to current in-service jet engines. The design also reduces carbon emissions and lowers noise levels.
Furthermore, the next-generation aircraft propulsion system is designed for sustainability. It is compatible with 100% Sustainable Aviation Fuel (SAF). It also supports future hydrogen-based propulsion systems.
Airbus has stated that its future single-aisle aircraft, expected in the mid-2030s, could feature an open-fan engine.
Developing a Global Readiness Framework
The Singapore airport testbed will use either Changi Airport (SIN) or Seletar Airport (XSP). The trials will study the practical impact of the new technology.
Key Operational Challenges
The open-fan design presents unique operational challenges. The engine is physically longer than current models. The fan blades are exposed, unlike traditional turbofans.
The collaboration will address several critical areas:
- Aircraft System and Design: Assessing how the engine integrates with the airframe.
- Airport Infrastructure Modifications: Evaluating jet blast, taxiway clearances, and gate compatibility.
- Operational Procedures: Developing new protocols for ground handling and maintenance activities.
- Safety Standards and Regulations: Establishing enhanced safety and regulatory processes for the new architecture.
Impact on Aviation Stakeholders
This partnership is a major step toward aviation decarbonisation. The global industry, represented by groups like IATA, is committed to net-zero carbon emissions by 2050.
For Airlines: The 20 percent fuel efficiency gain offers significant cost savings. This helps offset the high cost of Sustainable Aviation Fuel.
For Airports: The trials provide essential data for planning airport infrastructure modifications. This proactive work in Singapore will inform development globally. It ensures airports are ready for the open rotor engine architecture when it enters service in the 2030s.
For Regulators: CAAS will leverage its expertise to co-develop the regulatory blueprint. This will provide a trusted, real-world basis for global safety and operational standards.
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Written by Ujjwal Sukhwani
Aviation News Editor & Industry Analyst delivering clear coverage for a worldwide audience. Covers flight operations, safety regulations, and market trends with expert analysis.
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