The Boeing 777-8X is a long-range, wide-body, twin-engine jetliner that was developed by Boeing Commercial Airplanes. It is the largest twin-engine jetliner in the world and was designed to replace the Boeing 747-400 as the flagship of Boeing's wide-body fleet. The 777-8X is the first aircraft in the 777X series and was designed to be a more efficient, comfortable, and advanced aircraft than its predecessor.

Boeing designed the 777-8X to have a maximum range of 9,395 nautical miles and a maximum capacity of more than 400 passengers. It has a wingspan of almost 235 feet and is powered by two General Electric GE90-115B turbofan engines. It also features an advanced flight control system, which enables the aircraft to fly more efficiently than other wide-body aircraft.

The 777-8X was designed to compete with the Airbus A350-1000 and to offer airlines a more efficient and cost-effective long-haul option. The aircraft has become increasingly popular with airlines, with several major carriers like Qatar Airways, Emirates, American Airlines, and Lufthansa having purchased the aircraft. The aircraft has also seen success with charter carriers and cargo airlines, with many airlines using it for both passenger and cargo services.

Despite its popularity, the 777-8X has faced several issues over the years. In 2019, a Boeing 777-8X experienced an engine failure shortly after takeoff which resulted in the aircraft making an emergency landing. In 2020, two Boeing 777-8X aircraft operated by Cathay Pacific Airways experienced engine problems during takeoff, although both aircraft were able to make a safe landing without any further incident.

In terms of innovations, the 777-8X has a number of features that differentiate it from other aircraft. It is the first commercial aircraft to feature a composite wing, which is lighter and more fuel efficient than traditional aluminum wings. The 777-8X also features an advanced flight control system which allows the aircraft to fly more efficiently than other wide-body aircraft. Additionally, the aircraft has a number of advanced safety features such as winglets and an enhanced vision system.

Overall, the Boeing 777-8X is a revolutionary aircraft that has become increasingly popular with airlines around the world. It offers a more efficient and cost-effective long-haul option for airlines, as well as a number of advanced safety features. Despite facing several issues with safety over the years, the 777-8X is still a highly reliable and capable aircraft that is well suited for long-range travel.