What type of rope is known to have a tendency to stretch when wet, thereby making it less favorable for tiedown?

Manila rope is made from the fibers of the abaca plant and is known for its natural properties, including its ability to stretch when wet. This characteristic can be problematic for tiedown applications because the stretching can compromise the security and effectiveness of the tie-downs. When the rope becomes wet, it may lose its snug hold, which is critical for safely securing aircraft or other heavy objects. The other options, such as nylon and polyester, are synthetic materials known for their minimal stretch and strength retention even when exposed to moisture, making them more suitable for applications requiring firmness and durability. Dacron, a type of polyester, also exhibits similar characteristics as other synthetics and is less likely to stretch significantly when wet, enhancing their reliability for tiedown purposes.