Don't do what I did - failed to put cotter pins at both ends of the rudder pins. Read about it here -
viewtopic.php?f=14&t=130931. Don't panic.
2. Loosen all sails.
3. I use the turtle opportunity to raise the mast so it points into the wind. So, stand on the leeward hull, grab your righting line and lean back like righting from a capsize. You may not need to route the righting line around the outside of the windward hull, and you probably won't need assistance from your crew.
4. If the mast is not full of water, it will slowly come to the surface using it's buoyancy.
5. This is where it can get tricky depending on the wind speed. With the mast now pointed into the wind, the wind pressure on the tramp will reduce the effort needed to right the boat, and the stronger the winds the less effort needed. In fact, in 30-ish winds on my 18 the tramp alone, without leaning from me at all, righted the boat. The reason it's tricky is because the boat will right much more quickly than from righting it into the wind that the momentum combined with the wind pressure may blow it back over again; which leads to #6. . .
6. When you feel the righting moment do what you can to grab the other hull near the front cross bar and hang on! In my younger and lighter days my crew and I both were once pulled out of the water up to our waists as the boat wanted to flip again.
You should know what to do after that.