Lear Jet 23
The first Lear Jets, the Model 23s, were the first products of the original Lear Jet Corporation for the new field of business and personal jet aviation. So significant was the design that for years "Lear Jet" was synonymous with "bizjet." William P. Lear Sr. initiated the Lear Jet's development in 1959. The aircraft drew upon the structural quality of the Swiss AFA P-16 strike-fighter and featured a fuselage that narrowed at each side where the wing and engine nacelles extended outward — a design concept known as area rule — to provide smooth airflow around the engines.
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