Check the listing for details. 1946 Curtiss-Wright Propeller Aerodynamics Report Book Graphs Aviation Engineer. Listed at 25.00 USD. "Curtiss-Wright Corporation, Propellor Division, Caldwell, New Jersey. Two-Dimensional Aerodynamic Characteristic Data of the Clark-Y Airfoil Sections, Report No. C-169, Engineering Department, Aerodynamics Section, No. of Pages: 103, Date: 4-1-46. Compiled by Leonard Meyerhoff, 4/18/46." Report has several graphs (blue prints?), including some that fold out. The 103 page report is in a folder; the cover has wear/tears. It measures 8.75" x 11". Object: "The object of this report is to present the aerodynamic characteristic data for Clark-Y airfoils of infinite aspect ratio, in a manner most suitable for application to propellor vortex theory performance and design calculations, at varying Reynolds and Mach number conditions." Be sure to visit my shop for more and add me to your favorite sellers to see new listings! I'm always listing new treasures. I will combine shipping and I ship 6 days a week!