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 side than the center of buoyancy can go. At this point, the righting force will disappear, replaced by a turning moment in the opposite direction. This can capsize the vessel at the point at which one pontoon is completely submerged. When using twin lateral pontoons, each pontoon should have enough buoyancy to bear the load of the entire vessel on its own. If the vessel is so heavy that either pontoon is mostly submerged when no lateral force is applied, it will be vulnerable to the pontoon effect. If sufficient lateral force arises (such as wind or shifting load), the