Development of a pneumatic high-angle-of-attack flush airdata sensing system

A nonintrusive high-angle-of-attack flush airdata sensing system was installed and flight tested in the F-18 High Alpha Research Vehicle. This system consists of a matrix of 25 pressure orifices arranged in concentric circles on the nose of the vehicle to determine angles of attack and sideslip, Mach number, and pressure altitude. During the course of the flight tests, it was determined that satisfactory results could be achieved using a subset of just nine ports.

[1]  William Gracey.  Wind-tunnel investigation of a number of total-pressure tubes at high angles of attack subsonic, transonic, and supersonic speeds , 1956 .

[2]  David M. Richwine,et al.  In-Flight Flow Visualization Characteristics of the NASA F-18 High Alpha Research Vehicle at High Angles of Attack , 1989 .

[3]  W. Gracey.  Measurement of aircraft speed and altitude , 1981 .

[4]  Edward A. Haering,et al.  A system for testing airdata probes at high angles of attack using a ground vehicle , 1991 .

[5]  J. Anderson,et al.  Hypersonic and High-Temperature Gas Dynamics , 2019 .

[6]  William Gracey,et al.  Wind-Tunnel Investigation of a Number of Total Pressure Tubes at High Angles of Attack , 1951 .

[7]  Stephen A. Whitmore,et al.  The effects of pressure sensor acoustics on airdata derived from a high-angle-of-attack flush airdata sensing (HI-FADS) system , 1991 .

[8]  Stephen A. Whitmore,et al.  A preliminary look at techniques used to obtain airdata from flight at high angles of attack , 1990 .

[9]  Stephen A. Whitmore,et al.  Qualitative evaluation of a flush air data system at transonic speeds and high angles of attack , 1987 .

[10]  Stephen A. Whitmore,et al.  Preliminary results from a subsonic high angle-of-attack flush airdata sensing (HI-FADS) system: Design, calibration, and flight test evaluation , 1990 .

[11]  Paul M. Siemers,et al.  Shuttle Entry Air Data System (SEADS) - Optimization of preflight algorithms based on flight results , 1988 .

[12]  S. A. Whitmore.  Formulation and implementation of nonstationary adaptive estimation algorithm with applications to air-data reconstruction , 1985 .

[13]  Stephen A. Whitmore,et al.  Air data position-error calibration using state reconstruction techniques , 1984 .

[14]  Stephen A. Whitmore,et al.  Preliminary results from an airdata enhancement algorithm with application to high-angle-of-attack flight , 1991 .

[15]  I. G. Currie.  Fundamental mechanics of fluids , 1974 .

[16]  S. A. Whitmore.  Reconstruction of the shuttle reentry air data parameters using a linearized Kalman filter , 1983 .