NACA65(421)-420 DB Name: NACA65(421)-420 Family: NACA 65-series Max thickness: 20.0% at x = 39.72% chord Max camber: 2.2% at x = 49.90% chord Available data sources: JavaFoil+Calcfoil stall+Eppler ext transition Wind Tunnel (NACA-TR-824) XFOIL ncrit=9