What is the most common type of natural fiber line used in the Navy?

The most common type of natural fiber line used in the Navy is Manila. This fiber is derived from the abaca plant, which is a species of banana native to the Philippines. Manila rope is favored in maritime settings due to its strength, durability, and resistance to saltwater and mildew, making it suitable for various applications on ships.

Manila's properties allow it to maintain its integrity under wet conditions and high tension, which is critical for the safety and effectiveness of operations at sea. Additionally, its ease of handling and relative lightness compared to other natural fibers further contribute to its preference by naval personnel.

While hemp, jute, and sisal are also natural fibers with their own unique characteristics, Manila's specific attributes make it more aligned with the demands of naval operations.