The Beechjet 400A is a light business jet aircraft that was first introduced in 1985. It was originally designed and manufactured by Mitsubishi as the MU-300 Diamond, but later marketed and produced by Beechcraft after they acquired the rights to the aircraft in 1985.

The Beechjet 400A has a typical seating configuration for 7 passengers and 2 crew members. It is powered by two Pratt & Whitney JT15D-5 turbofan engines, which provide a maximum cruise speed of approximately 460 knots and a range of around 1,800 nautical miles.

The cabin of the Beechjet 400A is relatively spacious for a light jet, with a height of 4.8 feet, a width of 4.9 feet, and a length of 15.6 feet. The cabin also features a small galley and a lavatory. The Beechjet 400A has a maximum take

off weight of 16,300 pounds and a maximum operating altitude of 41,000 feet.

Overall, the Beechjet 400A is a popular light jet option for those looking for a comfortable and efficient way to travel short to medium distances. Its reliability, speed, and range have made it a favourite among private jet owners and operators for over 30 years.