Fourth Boeing 777X prototype prepares for maiden flight?

On September 3, 2020, the fourth test Boeing 777-9 appeared on Flightradar24 for the first time.

The latest Boeing 777-9 (registered as N779XZ) prototype is live in the air traffic feed displayed as BOE789/BOE777. The aircraft in-making is currently in Boeing Everett Factory, the United States.

The 777-9 stretches three extra seat rows and can fly the same weight 250 nmi (460km) farther than 777-300ER. Its first assembly started in 2017, and after three years, the aircraft soared for the first time on January 25, 2020.

The second and third prototypes commenced testing on April 30 and August 4 of the same year.

Due to the COVID-19 pandemic, Boeing had to postpone the 777X introduction to 2022 after tanking considerable losses in Q2 2020.


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