The Lexington model points toward the modern carrier

The class began as a battlecruiser replacement and evolved through war games, fleet problems, and exercises into a test bed for the modern aircraft carrier. The large treaty-conversion hulls carried inefficiencies, but they also provided aircraft capacity, protection, speed, and room to test missions that smaller conversions could not explore in the same way. Their Pacific focus pushed the US Navy toward raiding, strategic versatility, concentrated firepower, and integration with the battle fleet. British carriers often performed overseas presence missions, while Lexington and Saratoga spent much of the interwar period near the American coast, the Caribbean, and Hawaii as parts of a warfighting force. Ranger followed a less successful Bureau of Aeronautics path. Yorktown turned operating experience with the Lexingtons into a more efficient design, and Midway later extended that lineage. The Lexington model thus linked battlecruiser conversion with mature US fleet-carrier doctrine.