J. A. Axelson

Bio: J. A. Axelson is an academic researcher from Ames Research Center. The author has contributed to research in topics: Flight dynamics (fixed-wing aircraft) & Longitudinal static stability. The author has an hindex of 1, co-authored 1 publications receiving 1 citations.

Longitudinal aerodynamic characteristics of three representative hypersonic cruise configurations at Mach numbers from 0.65 to 10.70

Abstract: Longitudinal aerodynamic stability of three hypersonic aircraft at Mach numbers from 0065 to 1070

Aerodynamic characteristics of an all-body hypersonic aircraft configuration at Mach numbers from 0.65 to 10.6

Abstract: Aerodynamic characteristics of a model designed to represent an all body, hypersonic cruise aircraft are presented for Mach numbers from 0.65 to 10.6. The configuration had a delta planform with an elliptic cone forebody and an afterbody of elliptic cross section. Detailed effects of varying angle of attack (-2 to +15 deg), angle of sideslip (-2 to +8 deg), Mach number, and configuration buildup were considered. In addition, the effectiveness of horizontal tail, vertical tail, and canard stabilizing and control surfaces was investigated. The results indicate that all configurations were longitudinally stable near maximum lift drag ratio. The configurations with vertical tails were directionally stable at all angles of attack. Trim penalties were small at hypersonic speeds for a center of gravity location representative of the airplane, but because of the large rearward travel of the aerodynamic center, trim penalties were severe at transonic Mach numbers.