In order to compare the precision of model test results with other experimental tank, and raise the level of towing tank model test, 6 measure tests of seaplane pitch moment of inertia were conducted, and uncertainty of test results were analyzed. The result show that, increasing the measurement accuracy of swing time, length of hanging rope, half of distance of plane pole hanging point and stability of swing time measure result, can reduce the uncertainty of seaplane moment of inertia.%为了与在其他试验水池进行模型试验的结果精度进行比较，提高拖曳水池的模型试验水平，对水上飞机模型俯仰转动惯量进行了6次测量试验，并对测量不确定度进行了分析。结果表明，延长摆动时间、增长悬挂钢索、提高水平杆两悬挂点间距的一半的测量精度，及增加摆动时间测量结果的稳定性，可降低水上飞机俯仰转动惯量的不确定度。
展开▼
