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The Effect of Surface Irregularities on Wing Drag 1 - Rivets and Spot Welds
The Effect of Surface Irregularities on Wing Drag 2 - Lap Joints
The Effect of Surface Irregularities on Wing Drag 3 - Roughness
Effects of Propellers and of Vibration on the Extent of Laminar Flow on the NACA 27-212 Airfoil
The Effects of Surface Waviness and of Rib Stitching on Wing Drag