The Aermacchi MB-339 is an Italian military trainer and light attack aircraft. It is a development of the company's earlier MB-326 that it was designed to replace. The MB-339 is of conventional configuration, and shares much of the 326's airframe. It has a low, un-swept wing with tip tanks and jet intakes in the roots, tricycle undercarriage, and accommodation for the student and instructor in tandem. The most significant revision was a redesign of the forward fuselage to raise the instructor's seat to allow visibility over and past the student pilot's head.