The Engines of Pratt & Whitney: A Technical History as Told by the Engineers Who Made the History (Library of Flight) (Hardback) - Common

A history of Pratt & Whitney company's role in the evolution of aircraft engines from 1925 onwards. It describes the evolution from piston engines to gas turbines by the engineers who created those engines. It offers young engineers insights about design, development, marketing, and product support for commercial and military customers.