STOLEN SECRETS: From WWII Jet Engines to Supersonic With Eric “Winkle” Brown. The transition from piston-engine aircraft to the jet age was one of the most volatile and rapid periods in aviation history. From the desperate secret projects of Nazi Germany to the innovative sheds of British inventors, the race to break the sound barrier was fought with slide rules, courage, and political intrigue. This documentary explores the pivotal aircraft that defined this era, narrated by the legendary test