Which aircraft was the first "pure" jet commercial airliner?

The DeHavilland Comet is recognized as the first "pure" jet commercial airliner, marking a significant milestone in aviation history. Introduced into service in 1952, the Comet was the first aircraft to be designed from the ground up as a jet, utilizing turbojet engines for propulsion. This innovation offered a higher cruising altitude and speed compared to propeller-driven aircraft, revolutionizing air travel by drastically reducing flight times and providing a smoother flying experience.

The design of the Comet included several advanced features for its time, such as a pressurized cabin and more ergonomic passenger seating, which enhanced comfort for long-haul flights. Even though it experienced some early incidents, which prompted safety redesigns and improvements in the aviation industry, the DeHavilland Comet paved the way for future jet airliners by demonstrating the potential of jet technology in commercial aviation.

In contrast, while the Boeing 707 and Douglas DC-8 were significant developments in the jet age and helped popularize jet travel, they were introduced later and followed the Comet in the timeline of jet airliner development. The Airbus A300, the first wide-body twin-engine jet airliner, came even later and was also not the first to represent the