FREE-FLIGHT INVESTIGATION OF THE AERODYNAMIC CHARACTERISTICS OF A 10-DEG SEMIANGLE CONE AT MACH NUMBERS FROM 6 TO 16
Abstract
A 1000-ft hypervelocity range was used to obtain the free-flight static and dynamic stability and drag data presented for a 10-deg semiangle cone. Measurements indicate that the damping-in-pitch derivatives for the cone increase appreciably with increasing Mach number between M = 8 and 16 at a Reynolds number (based on model length and free-stream conditions) of about 400, 000. Further, the pitching-moment derivative for the cone decreases significantly as the nose-radius to base-radius ratio of the cone is increased up to 0.1 for amplitudes greater than about 5 deg. Comparisons of the range stability data with wind tunnel data (involving sting-supported models) obtained in different test facilities indicate that appreciable differences in the pitching-moment derivative and the damping-in-pitch derivatives exist in some cases.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1969
- Accession Number
- AD0686407
Entities
People
- A. N. Madagan
- C. J. Welsh
- G. L. Winchenbach
Organizations
- Arnold Engineering Development Complex