CONTRA-ROTATING OPTIMUM PROPELLERS OPERATING IN A RADIALLY NON-UNIFORM WAKE Open PDF Document Details Document Type Technical Report Publication Date May 01, 1955 Accession Number AD0076231 Entities People H. W. Lerbs Tags Communities of Interest Air Platforms Energy and Power Technologies DTIC Thesaurus Topics Coefficients Computational Science Differential Equations Engineering Engineers Equations Fluid Mechanics Government Procurement Governments Law Linear Differential Equations Model Basins Naval Architecture Navy United States Universities Viscous Flow