Predicted XV-15 exterior surface acoustic pressures are compared with previously published experimental data. Surface acoustic pressure transducers were concentrated near the tip-path-plane of the rotor in airplane mode. The comparison emphasized cruise conditions which are of interest for tiltrotor interior noise-level flight for speeds ranging from 72 m/s to 113 m/s. The predictions were produced by component of the NASA Langley Tiltrotor Aeroacoustic Code(TRAC)system of computer codes.
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机译：将预测的XV-15外表面声压与先前发布的实验数据进行比较。在飞机模式下，表面声压传感器集中在转子的叶尖路径平面附近。对比强调了巡航条件，这对于转速范围从72 m / s到113 m / s的倾转旋翼内部噪声级飞行很重要。这些预测是由计算机代码的NASA Langley Tiltrotor航空声学代码（TRAC）系统的组件产生的。
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