This paper considers the stopping distance of an aircraft involved in a runway overrun incident when the runway has been provided with an extension comprised of a material engineered to induce high levels of rolling friction and drag. A formula for stopping distance is derived that is shown to be the product of a known formula for the case of friction without drag, and a dimensionless constant between 0 and 1 that quantifies the further reduction in stopping distance when drag is introduced. This additional quantity, identified as the Drag Reduction Factor, D, is shown to depend on the ratio of drag force to friction force experienced by the aircraft as it enters the overrun area. The specific functional form of D is shown to depend on how drag varies with speed. A detailed uncertainty analysis is presented which reveals how the uncertainty in estimates of stopping distance are influenced by experimental error in the force measurements that are acquired in a typical evaluation experiment conducted to assess candidate overrun materials.


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    Title :

    Uncertainty Analysis for the Evaluation of a Passive Runway Arresting System


    Contributors:

    Conference:

    47th AIAA Aerospace Sciences Meeting and Exhibit ; 2009 ; Orlando, FL, United States


    Publication date :

    2009-01-05


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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