Junk rig to" in the junk rigged yacht is simple. Simply luff the boat into the wind with the sails close hauled and then put the helm down when the forward speed is spent. The battens will tame the luffing sails. Heaving to in severe weather is done by dropping the forward junk sails into their cradle and reefing the aft junk rigged sails—both tasks that are simplified by the junk rig. Heaving to in light winds can be difficult due to the lack of sail drive up wind. Annie Hill sailed a junk rigged dory and wrote of its virtues in
Pontoon effect a trimaran with narrow-beam floats will simply submerge the lee float, exposing only the weather wing and that with a lesser moment. In practical sea situations the windage effect is greater than the buoyancy effect and so cruising trimarans with highly buoyant floats are more, not less, likely to capsize than those with less buoyant floats. A trimaran is best stabilised not by adding buoyancy on the lee float but adding weight to the weather float. This is the basis of the "cool-tubes" stability system invented by Tristan Jones and L. Surtees. A large-diameter pipe closed at the aft end