Hi, Mr Coleman yo wrote: "I don't have the data, but I do remember the graph of the pitch drop after a pitch raise. The graph showed scallops between the struts. In other words the pitch dropped more between the struts than it did at the struts. This indicates that the plate web flexes, but less where there is the support of the struts." The reason could be that there is more space between unisons at the struts. Cyrillus
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