Modern large diameter Sea Anchors help resolve these problems and assist by giving you control over a marginal situation. Sea Anchor streamed off the bow will stop the boat in the water. Hooking you to the tide and therefore only a limited amount of sea room is required. It is the offshore corollary to a ground anchor. This device must have the resistance to overcome the wetted surface drag and the windage of the boat.
Resistance is the key.
Insufficient and the boat will fall off and lay ahull, in fact back to where we started, a drag device not working. Disp Sea Anchor Dia. The rode is the second vital part of the deployment. Tie up and ride out the storm. If your boat is under 150 tonnes and 40 metres use an Offshore Sea Anchor it could save your life.