We use the PBO fiber and Kevlar fiber to be the main core materials with different cover wraps, which underwent recursive stretch tests, to analyze the elongation rate and lowering rate of the rope strength is in this experiment.

• 摘要本研究以聚苯并恶唑纤维及克维拉纤维为芯材，搭配不同之外层包覆材，经由反覆拉伸测试下，分析其应用于飞行伞飞行时之飞行伞伞绳延伸率及其强力下降率。