A Method of Calibrating Airspeed Installations on Airplanes at Transonic and Supersonic Speeds by Use of Accelerometer and Attitude-angle Measurements


Book Description

A method is described for calibrating airspeed installations on airplanes at transonic and supersonic speeds in vertical-plane maneuvers in which use is made of measurements of normal and longitudinal accelerations and attitude angle. The required instrumentation is carried within the airplane. The various sources of error are also discussed.













Index of NACA Technical Publications


Book Description




Wind-tunnel Investigation to Determine the Horizontal- and Vertical-tail Contributions to the Static Lateral Stability Characteristics of a Complete-model Swept-wing Configuration at High Subsonic Speeds


Book Description

An investigation was conducted in the Langley high-speed 7- by 10-foot tunnel to determine the horizontal- and vertical-tail contributions to the static lateral stability of a complete-model swept-wing configuration at high subsonic speeds. The results indicate that, in a general, Mach number effects within the range studied and wing effects on the tail contribution were small and the overall trends of the data of the present investigation agreed with those which have been established at low speeds.




Report


Book Description




Analytical Investigation of Acceleration Restrictiion in a Fighter Airplane with an Automatic Control System


Book Description

A theoretical analysis was made to investigate the performance and acceleration-restriction capabilities of a normal-acceleration command control system in a fighter airplane. Several combinations of pitching velocity and pitching acceleration were investigated as feedback quantities in combination with normal acceleration.




Instrumentation Systems


Book Description

Flight Testing, Volume IV: Instrumentation Systems serves as a guide to flight test instrumentation systems for establishing flight test programs. This book provides aircraft flight testers with the information required to appreciate the capabilities and limitations of the instrumentation techniques, indicating some of the many alternatives possible in flight instrumentation. It considers the systems concept in planning flight test instrumentation and functional organization of the component parts of an instrumentation system, followed by a discussion of the components of a flight data acquisition and reduction system that are organized into functional categories. Within these categories, a comparison is made between the various data collection systems and data reducing systems. The similarities, advantages, and limitations of each type of system component and significance of the fundamental properties of each device are also noted in this volume. This compilation is written primarily for persons not well-trained in electronics with special emphasis toward promoting the systems point of view in considering the problems of measurement in flight.