US Patent 11912392 Flywheel actuated backstay tensioner

A flywheel actuated device for tensioning a backstay cable of a sailboat has a flywheel that is connected to a turnbuckle. The turnbuckle is connected to a cable backstay of a sailboat. Rotation of the flywheel rotates the turnbuckle to increase or relax tension on the cable backstay. The diameter of the flywheel and the weight of the flywheel near an outer circumference of the flywheel allow the flywheel to store rotational energy and cause the flywheel to temporarily freewheel while the sailboat is under sail when a sufficient manual force is applied to the flywheel, which turns the frame of the turnbuckle and provides an initial tension to the cable backstay.