1/25/2020: Boeing 777X Completes Maiden Flight

DALLAS — Today, in 2020, Boeing achieved a significant milestone in the field of aviation by successfully conducting the inaugural flight of the 777X, an impressive twin-engined commercial aircraft.

With its remarkable length of 252 feet (77 meters), the 777X holds the title of the longest commercial jet in the world. The aircraft also features an expansive wingspan of 235 feet (72 meters), which is almost equivalent to its length, thanks to the innovation of the world's largest folding wingtips.

At 10:08 am, the Boeing 777X, an enhanced version of the 777 mini-jumbo and the latest addition to the highly successful Triple Seven family of aircraft, accelerated down the runway and took off.

A multitude of Boeing employees and members of the press gathered alongside the main runway of Paine Field Airport (PAE), the location of Boeing's Everett assembly plant, crucial for producing wide-body aircraft like the 777X, to bear witness to this momentous occasion.

Later in the day, at approximately 2:00 p.m. local time, the aircraft gracefully descended for landing at the historic Boeing Field Airport (BFI) near central Seattle. Before its arrival, the plane conducted a traditional overflight near Mount Rainier, a renowned landmark in Washington State, where it likely participated in Boeing's customary air-to-air photography.

The Boeing 777X

Boeing announced the 777X in November 2013, unveiling a remarkable aircraft that incorporated several notable features. This included the utilization of General Electric GE9X high-bypass turbofan engines, folding wingtips, a wider cabin, and improved fuel efficiency.

In July 2014, Emirates (EK) finalized an order for 150 777X aircraft, but with some modifications later on. Out of the order, more than 100 are still awaiting delivery, as the airline made changes by reducing the number of certain aircraft and swapping others for the 787 Dreamliner.

Interestingly, Boeing took inspiration from the design of the Dreamliner for the wings of the 777X, aiming to enhance the aircraft's efficiency even further.

Once it is put into service, the new Boeing 777X will claim the title of the world's largest and most efficient twin-engine jet, surpassing its competition in every performance aspect, according to Boeing.

The aircraft incorporates groundbreaking advancements in aerodynamics and engines, resulting in 105% lower fuel consumption and emissions. It also boasts 10% lower operating costs compared to its rivals, according to the US manufacturer.

Boeing also emphasizes that the 777X offers a "low-risk, profitable growth" opportunity, industry-leading reliability, and seamless integration with the existing 777 and 787 Dreamliner families. Inside the cabin, passengers will enjoy a spacious and wide interior, featuring new custom architecture and innovative elements inspired by the Boeing 787 Dreamliner.

As a result, Boeing promises that the 777X will deliver an unparalleled flight experience, representing the future of air travel.

Production, Testing Delays

The initial testing phase of the Boeing 777X encountered several significant setbacks. In September 2019, the structural testing had to be halted when one of the fuselage doors on the testing frame unexpectedly blew off during a maximum pressurization test. This incident was particularly detrimental for Boeing, as officials from the Federal Aviation Administration (FAA) were present and prepared to certify the aircraft's structural safety.

In addition to the structural safety issue, the Boeing 777X was already experiencing delays due to a manufacturing flaw in its newly designed General Electric GE9X engines. The engines had to be recalled for a redesign due to increased wear and exhaust gas temperatures that exceeded the optimal limits for the GE9X engine. This issue was attributed to malfunctioning stator vanes in the second stage of the high-pressure compressor.

As a result of these development challenges and the subsequent impact of the COVID-19 pandemic, the 777X was expected to enter service later than originally planned. The aircraft will face direct competition from the Airbus A350-1000, which has a seating capacity of approximately 360 passengers. As seen in the aviation industry in 2020–2021, larger twin-engine jets have gradually replaced the aging four-engine Boeing 747 and Airbus A380 aircraft.

The Boeing 777X Variants

The Boeing 777X aircraft will be available in two distinct versions: the 777-8X and the 777-9X. While the 777-8X is the smaller of the two, it boasts an impressive range of 8,730 nautical miles. On the other hand, the 777-9X will have a slightly shorter range of 7,285 nautical miles.

Additionally, the 777-9X is poised to claim the title of the longest commercial passenger plane ever manufactured, measuring 252 feet (77 meters) in length. With the assistance of the world's largest folding wingtips, the aircraft's wingspan will span 235 feet (72 meters), nearly matching the length of the plane itself.

During ground operations, the 777X's wingtips will be folded upward as a safety and operational measure, reducing the wingspan of the aircraft. However, when in flight, the wingtips will be extended, enhancing the aircraft's efficiency and increasing the wingspan to 235 feet, 5 inches (71.75 meters).

Both variants of the 777X will be equipped with General Electric's massive GE9X engine. According to Boeing, the list price for the 777-8X is set at US$410.2 million, while the 777-9X is listed at US$442.2 million.

Wide-Body Demand, Delivery Pushbacks, DAS2023

Even before the devastating impact of the pandemic on the aviation industry, concerns about wide-body demand were already surfacing due to overcapacity and economic weaknesses. Experts have been raising these concerns, and the pandemic further exacerbated the situation. In 2020, airlines canceled more than double the number of large jets they had ordered the previous year, according to Rob Morris, the head of consultancy at UK-based Ascend by Cirium.

That year, Boeing announced that it had secured 309 orders for the 777X. However, there are apprehensions within the industry regarding the company's reliance on Middle Eastern carriers, which have scaled back their orders for these aircraft.

Emirates (EK) revealed in a press release in late December that it did not anticipate adding the new Boeing 777X to its fleet until 2023. Although the reasons for this delay were not provided, it can be speculated that the ongoing COVID-19 pandemic and the program delays on the 777X were significant contributing factors.

Emirates had previously adjusted its delivery expectations, with Chief Operating Officer Adel Ahmed Al Redha stating that the aircraft would likely not be delivered in 2021. Instead, he believed that 2022 would be a more realistic timeframe. However, with the aviation industry grappling with the global pandemic, the delays have pushed the certification date for Boeing's flagship aircraft, priced at US$442.2 million, to 2023.

Despite generating considerable excitement in the aviation world, the 777X was being held back from reaching its full potential due to these delays. However, Boeing recommenced flight testing of its 777X airframe after a two-month break due to unspecified technical issues with its General Electric GE9X engines.

The manufacturer confirmed that flight testing with airframe N779XW restarted on December 17, 2022, with four 777-9 prototypes carrying out the rigorous testing program.

Fast forward to the 2023 Dubai Airshow, and EK opened the week with an order for an additional 90 Boeing 777Xs, increasing the backlog of its Boeing 777X aircraft to 205. Additionally, the Boeing 777-9 performed in the airshow's flying display. Airways had the chance to see the aircraft inside and out. check out the video below.

2025 Functional Test Flight

On January 23, 2025, the Boeing 777-9, identified by registration N779XW, performed a functional check flight from Everett, part of the certification process for new aircraft models.

Functional check flights are essential in ensuring that all aircraft systems operate correctly before being certified for commercial service.

Paine Field was again the departure airport for this flight.

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