A Study to Determine the Feasibility of Simulating the AV-8A Harrier with the X-22A Variable Stability Aircraft.
Abstract
A study program was undertaken to investigate the feasibility of conducting ground- and in-flight simulations of a jet-lift VTOL aircraft performing terminal area operations using the U. S. Navy X-22A V/STOL Research Facility. The objectives of the program were: To develop a generic mathematical model of the AV-8A aircraft during a decelerating approach to hover; To develop the methodology for computing the variable stability gains required to simulate the AV-8A model with the X-22A, and To develop the procedures for implementing the simulation in the X-22A ground simulator. The general conclusion for this study is that it is feasible to simulate in the X-22A aircraft an AV-8A class VTOL aircraft during terminal area operations. The methodology for performing such a simulation is developed and the techniques for mechanization on the X-22A ground simulator for further experimental investigation are described. Excellent simulation fidelity is possible during low-speed flight equal to or less than 60 kts. Areas which require further investigation include the discrepancies in response to throttle inputs at higher speeds and the necessity for matching lateral acceleration responses at the pilot's station to control inputs.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1976
- Accession Number
- ADA033618
Entities
People
- Edwin W. Aiken
- J. Victor Lebacqz
Organizations
- Calspan