The success of the Beech King Air 200 design prompted Beech to explore a jet-powered version. This was the PD.290 Fan Jet 400. The first prototype King Air 200 was re-engined with Pratt & Whitney Canada JT15D-4 turbofans in similar nacelles to the PT6A turboprops.
The aircraft was flown in this configuration for the first time on March 12, 1975. The jet-powered aircraft did not warrant production, and Beech later purchased the Mitsubishi Diamond design.
The last flight was made on September 30, 1977.
All Aero 