throwline

A throwline, in water rescue and boating contexts, is a short-length rope attached to a buoyant throw bag designed to be thrown to a person in water who is at risk of drowning. The line allows the victim to grasp a secured lifeline and be pulled to safety without a boat or direct reach.

Construction: Typical throwlines measure about 50–75 feet (15–23 meters) of line; some models up to 100 feet (30 meters). The line is usually nylon or polypropylene; the outer bag is buoyant and brightly colored. The bag or fender is weighted to aid throwing; the line is wound within a throw bag, or on a small reel for easy deployment. The line is rated to withstand required loads.

Use: Carried by lifeguards, coast guards, boat crews, and trained responders. To deploy, the rescuer throws the weighted end toward the casualty so the line unspools and the person can grab it. The rescuer then secures the line to a fixed point or uses a secondary line to tow the casualty to safety. The throwline is intended for quick deployment and is often used in conjunction with a life ring or PFD.

Safety and maintenance: Inspect for wear, fraying, and UV damage; replace if compromised. Keep the line dry and clean; avoid entanglement; ensure the rescuers are trained in throwing technique and recovery.