LONGITUDINAL FORCE AND MOMENT DATA AT MACH NUMBERS FROM 0.60 TO 1.40 FOR A FAMILY OF ELLIPTIC CONES WITH VARIOUS SEMIAPEX ANGLES
Abstract
An investigation was made to determine the aerodynamic characteristics of 4 elliptic cones having plan-form semipex angles ranging from about 9 to 31 degrees, and also for 1 of the cones modified on the upper surface to reduce the base area by about 1/2. Tests were made for ANGLES OF ATTACK FROM ABOUT -2 TO +21 degrees, at Mach numbers from 0.60 to 1.40, and for a constant Reynolds number of 1.4 million, based on the length of the models. For each model, lift, pitching-moment, and drag coefficients, and lift-drag ratios are presented for the forebody, and axial-force coefficients are presented for the base. Calculated lift and pitching-moment curves for the elliptic cones, and lift-curve slopes for each model at supersonic Mach numbers are shown for comparison with the corresponding experimental values. Lift-drag ratios are also given for the forebody and base combined. These data are presented without discussion.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1961
- Accession Number
- AD0268142
Entities
People
- Lionel L. Jr. Levy
- Louis S. Jr. Stivers
Organizations
- National Aeronautics and Space Administration