When the ship pitches as well as rolls, frapping lines should have leads in which direction?

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When a ship both pitches and rolls, securing lines need to pull along the boat’s length to counter motion in multiple directions. Frapping lines should lead fore and aft at about a 45-degree angle so they pull diagonally along the ship’s axis. This diagonal orientation provides tension components that resist both pitch (up and down) and roll (side to side) and helps keep the liferaft close to the hull and aligned with the vessel. A purely side-to-side lead would only resist horizontal drift and could let the raft slide along the side or slip out of place; a vertical lead would mainly pull up and down with little effect on sideways drift; a circular lead isn’t practical for stabilizing the raft. The fore-and-aft diagonal setup offers the best balance to maintain control and stability in rough seas.