MH 28 DB Name: MH 28 Family: Hepperle Max thickness: 10.1% at x = 41.73% chord Max camber: 1.3% at x = 45.80% chord Available data sources: JavaFoil+Calcfoil stall+Eppler ext transition XFOIL ncrit=9
Notes:
Coordinates from TraCFoil. Commercial use of the airfoil may be restricted by the designer's copyright. Designed for pylon racing model aircraft (FAI class F3D, Q-40 and similar).
Thickness: 10.06%.
Moment coefficient cm c/4 = -0.0329.
Numerically optimized for Reynolds numbers between 250k and 1.5M.
Well suited for a flap of 20% chord length.
Requires good construction methods to achieve laminar flow up to 80% of the chord length.
Turbulators at 80% chord on the both sides should be used for Reynolds numbers between 500k and 1M.