33 research outputs found
SCAR arrow-wing active flutter suppression system
The potential performance and direct operating cost benefits of an active flutter suppression system (FSS) for the NASA arrow-wing supersonic cruise configuration were determined. A FSS designed to increase the flutter speed of the baseline airplane 20 percent. A comparison was made of the performance and direct operating cost between the FSS equipped aircraft and a previously defined configuration with structural modifications to provide the same flutter speed. Control system synthesis and evaluation indicated that a FSS could provide the increase in flutter speed without degrading airplane reliability, safety, handling qualities, or ride quality, and without increasing repeated loads or hydraulic and electrical power capacity requirements
Interview with John Jefferson Visor, 1996
Office of the Tarrant County Black History and Genealogical Society, Fort Worth, TX. Living and working on his own after his mother's death when he was nine years old, John Visor decided that he preferred working with horses over picking cotton to support himself. Self-educated, he worked at a variety of jobs on ranches, learning to ride and break horses. Visor also describes his techniques for catching and training wild horses, experience as rodeo cowboy, and working on various ranches