GE Aviation’s GEnx-1B Turbofan: A Decade of Excellence, Innovation, and Sustainability

Release date: 2023 December 5

The GEnx-1B turbofan engine, a creation by General Electric Aviation, has firmly established itself as a high point of modern engineering since its introduction in 2011. Powering different Boeing 787 variants, the GEnx-1B is renowned for its high fuel efficiency, minimal emissions, and whisper-quiet operation, revolutionizing the aviation industry.

In the latest developments within the industry, GE Aerospace has recently unveiled significant orders from prominent African carriers, TAAG Angola Airlines and Royal Air Maroc (RAM), signaling a new chapter in the history of the GEnx engine variant. These orders, amounting to at least 12 GEnx engines, are destined to power the cutting-edge Boeing 787 Dreamliners for both airlines. The decisions were unveiled amid the vibrant atmosphere of the 2023 Dubai Airshow, where these African carriers made their engine selections, showcasing a growing trend in the region’s aviation landscape.

TAAG Angola Airlines, based in Luanda, made headlines on November 15 at the Dubai Airshow with the announcement of its procurement of eight GEnx-1B engines and a spare unit for its upcoming fleet of Boeing 787 aircraft. This order follows TAAG’s strategic decision a month prior to acquire four new Dreamliners, setting the stage for the carrier’s fleet modernization. The agreement includes a mix of 787-9s and 787-10s, with the initial delivery anticipated as early as August 2024. For TAAG, this marks the initiation of its association with the GEnx-1B engine, reinforcing the carrier’s commitment to operational efficiency and an enhanced passenger experience.

Royal Air Maroc’s Visionary Move

Simultaneously, Royal Air Maroc, headquartered in Casablanca, made a parallel move by confirming an order for four GEnx-1B engines for its expanding Dreamliner fleet. This announcement closely followed the carrier’s decision to add two more B787-9s to its portfolio, underscoring RAM’s enduring alliance with Boeing and General Electric. As a carrier already operating nine Dreamliners, all powered by GEnx engines, this new order positions the larger -9 variant as a significant addition to RAM’s fleet.

These strategic moves align with the carriers’ broader objectives for growth and modernization. TAAG Angola Airlines, in particular, views the introduction of the GEnx-1B engines as a pivotal step toward achieving its international expansion goals and delivering an upgraded flight experience to its passengers. For RAM, this agreement aligns with its ambitious plans to quadruple its fleet over the next 15 years, reflecting a collaborative effort with the Moroccan government to introduce more than 150 new aircraft and bolster its presence across intra-Africa routes as well as long-haul destinations in the Middle East, Europe, Asia, and the Americas.

Other Recent News and Developments

In 2021, GE Aviation and Boeing announced the launch of the GEnx-1B Performance Improvement Package (PIP). The PIP is designed to further enhance the engine’s fuel efficiency and reduce maintenance costs.

In 2022, China Eastern Airlines placed an order for 25 GEnx-1B engines to power its Boeing 787 fleet. This order reflects the airline’s confidence in the engine’s performance and reliability.

In 2023, GE Aviation announced that it had successfully tested the GEnx-1B engine with a blend of 100% sustainable aviation fuel (SAF). This milestone marks a significant step towards reducing the environmental impact of aviation.

A Testament to Innovation

In essence, these recent orders mark a significant milestone in the historical trajectory of the GEnx engine variant, solidifying its role as a preferred choice for airlines seeking operational efficiency and advanced technology in their fleets. With its successful operations continuing into the next decade, we present you with some interesting fact about this technological marvel.

Counting over 50 million flight hours under its belt, this engine stands as one of the most reliable and high performing in the industry. GE Aviation’s drive to innovate through its continuous research and development efforts, ensures that the GEnx-1B turbofan engine remains at the forefront of aviation propulsion technology.

The GEnx-1B turbofan engine, a product of General Electric Aviation, continues to be a marvel of modern engineering. Introduced in 2011, it powers the Boeing 787 Dreamliner and the Boeing 747-8, two of the most technologically advanced aircraft in the world. The GEnx-1B is renowned for its exceptional fuel efficiency, low emissions, and quiet operation, making it a game-changer in the aviation industry.

Since its entry into service, the GEnx-1B has accumulated over 50 million flight hours, solidifying its position as one of the most reliable and high-performing engines in the industry. GE Aviation has consistently invested in research and development to further enhance the engine’s performance and sustainability.

Further Adjustments and Upgrades

Naturally, these adjustments followed the resolution of various technological and operational issues. Real-world scenarios demonstrated that even a highly developed and rigorously tested engine required some retrofits and structural corrections once it entered service on operational aircraft.

The initial challenge, as is customary with any new aircraft engine of this caliber, involved what is commonly known as a teething problem. In 2012, an airworthiness directive addressing the fan midshaft was issued, as reported by the manufacturer. Subsequently, on November 27, 2013, another airworthiness directive mandated the revision of flight manuals for aircraft equipped with GEnx engines. This revision aimed to alert flight crews to potential ice crystal icing (ICI) conditions at high altitudes and prohibited operation in moderate and severe ICI conditions. The directive also emphasized the necessity of inspecting the engine after any ICI event detected by the flight crew.

The issuance of this airworthiness directive was prompted by reports of engine damage and thrust loss events resulting from flying in high-altitude ICI. Its primary objective is to ensure that flight crews possess operating instructions to prevent entering ICI conditions, thereby averting engine damage and thrust loss.

Fast forward to 2018, and the engine underwent what the manufacturer termed a ‘durability upgrade.’ This enhancement, encompassing modifications to the GEnx-1B’s high-pressure turbine (HPT) first-stage nozzles and blades, along with adjustments to its combustor lining and fuel nozzles, provided operators of GEnx-1B-powered 787s with approximately 30 percent more operational time beneath the wings.

A Continuous Pursuit of Excellence

Yet, the GEnx-1B turbofan engine is a powerful and fuel-efficient powerplant that has been a popular choice for airlines worldwide. Over 3,000 GEnx-1B engines have been delivered to airlines, and it powers two out of every three Boeing 787 aircraft in service.

The GEnx-1B is also a very environmentally friendly engine, providing a 15% fuel burn savings compared to its predecessor, the CF6 engine, and producing up to 20% less carbon dioxide (CO2) emissions. In addition, the GEnx-1B is certified to operate on approved Sustainable Aviation Fuel (SAF) blends today.

The GEnx-1B is a very reliable engine, with a dispatch rate of over 99.9%. It is also a very maintainable engine, with a time on wing of over 10,000 hours.

The GEnx-1B is a testament to GE Aviation’s commitment to innovation and its dedication to sustainable aviation solutions. The engine’s continuous improvements in performance and environmental responsibility have made it a benchmark in the industry. As GE Aviation continues to invest in research and development, the GEnx-1B is poised to remain a leader in aviation propulsion for years to come.

As a leading provider of engine stands, is equipped to handle the GEnx-1B with utmost care and precision. Our stands are designed to meet the specific requirements of this powerful engine, ensuring optimal support and protection during maintenance and storage. Whether you’re an airline operator or an independent maintenance provider, offers the expertise and equipment you need to keep your GEnx-1B engines running at peak performance.



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