A method used by erectors for assembling a member which is beyond the reach of the boom of the derrick. It consists in placing a pulley block ahead of the member beyond the derrick and doubling back the lead line to the hoisting engine.
An outhaul is a line which is part of the running rigging of a sailboat, which is used to extend a sail, and control the shape of the curve of the foot of the sail. It runs from the clew (the back corner of the sail) to the end of the boom. The line is pulled taut to the appropriate tension (to provide the desired shape to the foot), and then secured to a cleat on the boom.