- In early 1988, Beech announces it will relocate assembly and subassembly work on the Beechjet from Mitsubishi facilities in Japan to Kansas, creating hundreds of new jobs for American workers.
- In October 1988, Beech introduces the Beechjet 400A, which features a larger interior and the most advanced flight deck available.
- In October 1988, Beech introduces the Beechjet 400A, which features a larger interior and the most advanced flight deck available.
- In October 1989, Beech introduces the Beech King Air 350. With a wider wing span, double-club seating and two-foot-high winglets, the 350 is the most comfortable and capable King Air ever built.
- In December 1989, the Beech Starship is certified.
- In February 1990, U.S. Air Force officials announce the selection of the Beechjet for its T-1A Jayhawk program to train tanker and transport pilots. With all contract options exercised, Beech Aircraft is to provide 180 Beechjets to the Air Force for specialized undergraduate pilot training.
- In September 1990, Beech Aircraft commits to compete for the U.S. Air Force and Navy Joint Primary Aircraft Training System. The Beech team offers a missionized version of the Pilatus PC-9 to be called the Beech MkII, an advanced, high-performance primary trainer.
- In March 1991, Beech is awarded a type certificate for the 1900D Airliner, a state-of-the-art 19-passenger, pressurized aircraft featuring a 71-inch stand-up cabin, more baggage capacity, and improved passenger comfort features.
- At the National Business Aircraft Association convention in October 1991, Beech introduces the new King Air C90B, which features a redesigned passenger cabin, new sound absorbent and moisture resistant interior panels, four-blade propellers, new propeller spinners and a new paint scheme.
- On January 17, 1992, Beech delivers the first T-1A Jayhawk to the U.S. Air Force in ceremonies near the company's jet assembly line.
- On July 6, 1993, Mrs. O.A. Beech, co-founder of Beech Aircraft, dies in Wichita at age 89.
- In August 1993, Raytheon Company acquires Raytheon Corporate Jets, producers of the mid-sized Hawker jet line, from British Aerospace.
