FLIGHT TEST EVALUATION OF THE A/A24U-6 STRUCTURAL LOADS DATA RECORDING SYSTEM.
Abstract
A flight test evaluation of the Whittaker A/A24U-6 Structural Loads Data Recording System was conducted to determine the capability of the recorder to acquire flight loads data for use in the Air Fore Structural Integrity Program. The system consists of a small, eight-channel, airborne, digital tape recorder; a magnetic tape magazine; and a ground playback converter. A 24-flight evaluation program was conducted using an F-102 aircraft to acquire a nominal sample of VGH flight loads data. Measurements of identical acceleration peaks were successfully correlated on both systems by signals from a precise, master, timereference source recorded by both systems. The Whittaker system was found to be a reliable means of recording both 6 cps and 12 cps vertical acceleration data. Comparisons of acceleration frequency distributions indicated that those data obtained from the Whittaker recorder had essentially the same distribution function as data obtained simultaneously by the oscillograph recorder. Pressure transducers used to measure airspeed and altitude were judged to be less accurate and less reliable than the rest of the Whittaker system. It is concluded that overall system accuracy can be increased by increasing the digital count of the acceleration, airspeed, and altitude measurements to seven digital bits. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1965
- Accession Number
- AD0622282
Entities
People
- Robert J. Dominic
Organizations
- University of Dayton Research Institute