Devices used to redirect and multiply force for lifting or hauling on a fishing boat are commonly referred to as blocks. A block consists of a wheel (sheave) grooved to accommodate a rope or cable, housed within a frame, and often incorporating a hook or shackle for attachment. For example, a block and tackle system can significantly ease the effort required to haul in heavy fishing nets.
These mechanisms are vital for efficient operation and crew safety. They enable tasks such as lifting catches, deploying equipment, and managing mooring lines, all with reduced physical strain on the crew. Historically, these systems have been indispensable in maritime activities, predating motorized winches and remaining valuable even with modern technology due to their reliability and mechanical advantage.
