The Lexington class supports an interpretation of the technological capital-ship race as a contest involving Britain, the United States, and Japan more than Germany. Turbo-electric drive separated turbine speed from propeller-shaft speed, allowing turbines to operate efficiently while electrical transmission delivered power to the shafts. That flexibility supported both high output and economical operation, with a planned 180,000 shaft horsepower available for speed. The evolving design also raised the aftermost main turret above the wet stern, improving its working conditions and simplifying the main battery's vertical arrangement. Numerous single secondary and anti-aircraft positions offered space that could later be converted to dual-purpose weapons. Together these choices make Lexington valuable as a study in propulsion, seakeeping, gunnery layout, and modernization rather than simply a list of large specifications.
Chapter · 45:24-48:58
Lexington's turbo-electric drive pushes capital-ship technology
Turbo-electric transmission, a raised after turret, and a flexible secondary battery show the Lexington design combining high power with practical attention to operations and future refits.