This event is in the "Adults" group Bettis Field and the ABCs of Pittsburgh Aviation 6:00pm–7:30pm Adults Registration Required This event is in the "Adults" group Sep 29 2025 Mon Bettis Field and the ABCs of Pittsburgh Aviation 6:00pm–7:30pm Northland Public Library Library Branch: Northland Public Library Room: Room 148-1&2 Age Group: Adults Program Type: Special Program Registration Required Event Details: American aviation took wing in the 1920s in fabric-covered biplanes from local airports that were little more than reclaimed cow pastures — like Bettis Airfield in West Mifflin.