The Mitsubishi M2051 was the most technologically sophisticated commercial aircraft ever conceived. Developed and produced by Mitsubishi Heavy Industries in Japan, the first units were sold to Neo-Pacific Airways in 2052. The aircraft featured antimatter power, the first instance of such an energy source in commercial transportation. Additionally, extremely intelligent onboard computer systems, connected to a central digital hub, allowed the M2051 to fly autonomously, with different aircraft coordinating in establishing efficient flight routes. Advanced aerodynamics and engine systems greatly increased the efficiency of the plane as well. By its unveiling in the mid-twenty-first century, the M2051 was considered the crown jewel of commercial aircraft.