Dive Angle Sensitivity Analysis for Flight Test Safety and Efficiency

<p>Flutter envelope expansion is one of the most critical types of developmental flight tests particularly for high-speed military aircraft. The regions that present the most dangerous flight profiles are those test points in the negative PS realm of the flight envelope. These points develop into high-speed dives and require an accurate predictive model to prevent possible testing accidents. As a flight test is conducted several conditions such as aircraft weight and ambient air temperature can change causing a drastic shift in the excess power profiles resulting in significant alteration in the test conditions. Using a dive planning model a number of parameters were analyzed to determine the sensitivity to variations in data. This sensitivity analysis provided detailed information regarding the parameters that are most effected by minor variations in test conditions. The goal of this study was to improve the safety of flight test programs and increase test efficiency by improved test planning and execution.</p><p>This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact and remains as true to the original work as possible. Therefore you will see the original copyright references library stamps (as most of these works have been housed in our most important libraries around the world) and other notations in the work.</p><p>This work is in the public domain in the United States of America and possibly other nations. Within the United States you may freely copy and distribute this work as no entity (individual or corporate) has a copyright on the body of the work.</p><p>As a reproduction of a historical artifact this work may contain missing or blurred pages poor pictures errant marks etc. Scholars believe and we concur that this work is important enough to be preserved reproduced and made generally available to the public. We appreciate your support of the preservation process and thank you for being an important part of keeping this knowledge alive and relevant.</p>