The Don Englebreston Collection

Close-Up Detail of Four-Bladed Propeller Hub Assembly on Radial Engine Aircraft

Close-Up Detail of Four-Bladed Propeller Hub Assembly on Radial Engine Aircraft

A close-up view reveals the intricate engineering of a WWII-era constant-speed propeller hub. Precision components like these allowed pilots to adjust propeller pitch in flight for optimal performance during takeoff, cruise, and combat maneuvers. Project: 219309