Beechcraft T-34 (Turbo) Mentor
Beechcraft made a primary training aircraft based on the Bonanza private aircraft. Especially landing gear with triangular main landing gear doors is a key feature copied from the Bonanza, as is the nose of the piston powered version. The fuselage has a tandem canopy, with the student and instructor pilot sitting at the same level. The turboprop version is shown here.