There are four
basic types of lug rig..
This prevents the mast spoiling the shape of the sail if it where to be left on the leeward side.
The problem with using this sail is the coordination needed to quickly dip the sail when tacking.
For this reason it is generally used on boats which are likely to travel long distances on one tack.
It is also why most recreational craft use standing or balance lugs.
In the west, lug rigs traditionally mount the sail on the starboard side, which probably accounts for the rule for giving way to boats on starboard tack.
However, it can be fitted with a tripping line from the throat which allows the gaff to be dipped.
The tack of this rig is set close to the mast.
Like the dipping lug it is usually loose footed.
And the boom extends beyond the mast, the tack being affixed back from its leading edge.
This allows more of the sail’s leading edge to extend in front of the mast.
This means that the sail is more balanced, hence the name.
This is an ideal rig for small boats with short masts as the sail can be peaked up high and needs a minimum of rigging.
The Junk has been in use in a myriad of styles and on boats of all sizes for centuries in East Asia.
The Chinese navy
circumnavigated the globe, in their Junks in the fifteenth century
while European sailors were still coming to terms with the idea that
the world was spherical.