Anchor force: system and controls

Numbers on each strand are its tension in lbf, and line weight follows tension. Mainline and haul strands run parallel to the load line.

Prove it: tension through every pulley

Mainline tension (load)

Pulley efficiency

Applied to every pulley, including the redirect.

Redirect the haul line through a pulley at the anchor

Haul direction after the redirect

0° pulls back toward the edge, parallel to the mainline. 180° pulls straight away from it.