Investigation of extreme leading-edge roughness on thick low-drag airfoils to indicate those critical to separation

Author:	Davidson, Milton
Year:	1942
Document Type:	N/A
Series:	NACA Wartime Reports
Report Number:	NACA-WR-L-659, NACA-CB
Link:	https://digital.library.unt.edu/ark:/67531/metadc61332/