taking it down...
,,,If you don't have one, rig the tackline through a block on the stemhead, bowsprit or pole back to the cockpit. If not, you can send someone forward to release the tack when the takedown is called. Anyway, the idea is to dump the air from the sail by releasing the tack (or guy on a symetrical) and a controlled drop of the halyard. Once the air is dumped the foredeck crew can control the sail, gathering it in to the turtle or down the hatch. An alternative is to simply pull the sail back to the cockpit with the sheet.It's important to flake the halyard before the drop. The line needs to run free, so it won't jam and allow the sail to refill, but it also needs to be under control so the sail doesn't owerwhelm the crew and get wet. Many racing boats that use asyms have a takedown line attached to the center of the sail. This gives the crew more control during the sail's collapse and probably helps the repacking effort also.