The Lear Fan was an innovative aircraft, distinguished by its advanced carbon fiber composite construction and state-of-the-art avionics for its time.
Its unique propulsion system featured two turboprop engines configured to drive a single pusher propeller.
Despite reliable engines, the aircraft's critical flaw and ultimate "Achille's heel" was the problematic gearbox system that linked the twin engines to the single propeller, which could never be perfected.
One of the autoclaves used to cure the Lear Fan’s carbon fiber fuselage.The Lear Fan cockpit under construction. Avionics were state of the art for the day.Composite construction and distinctive configuration set the Lear Fan apart.It was the gearbox that proved to be the Lear Fan’s Achille’s heel. They never got it right.A brace of turboprops driving a single pusher propeller was the concept.Pratt & Whitney provided the ‘reliable engines,’ all right, but the configuration never worked out successfully.
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