Serial/Series Title

Summary of Results Obtained by Transonic-Bump Method on Effects of Plan Form and Thickness on Lift and Drag Characteristics of Wings at Transonic Speeds (open access)

Summary of Results Obtained by Transonic-Bump Method on Effects of Plan Form and Thickness on Lift and Drag Characteristics of Wings at Transonic Speeds

Note presenting a summary of the effects of plan form and thickness on the lift and drag characteristics of wings at transonic speeds. The data were obtained in the high-speed 7- by 10-foot tunnel by the transonic-bump method over a range of Mach numbers. Results regarding lift, drag at zero lift, and drag due to lift are provided.
Date: November 1955
Creator: Polhamus, Edward C.
System: The UNT Digital Library
Cooperative Investigation of Relationship Between Static and Fatigue Properties of Wrought N-155 Alloy at Elevated Temperatures (open access)

Cooperative Investigation of Relationship Between Static and Fatigue Properties of Wrought N-155 Alloy at Elevated Temperatures

Note presenting extensive data relating properties of wrought N-155 alloy under static, combined static and dynamic, and completed reversed dynamic stress conditions. Time periods for fracture ranged from 50 to 500 hours at room temperatrue, 1000, 1200, 1350, and 1500 degrees Fahrenheit. Results regarding the rupture and fatigue strengths, fatigue strengths based on cycles to failure, influence of superimposed fatigue loads on creep, influence on superimposed fatigue stress on elongation in the rupture test, stress-strain characteristics under fatigue loading, damping effects, influence of cyclic speed on fatigue properties, influence of notches on fatigue, surface finish, and limitations of findings are provided.
Date: April 1955
Creator: NACA Subcommittee on Heat-Resisting Materials
System: The UNT Digital Library