Assertion: windward leech | /r/Synonym | the luff
Facets:
value: on a reach
type: LOCATION
Source sentences:
text: When on a reach, the windward leech of a spinnaker (symmetrical or not) is called the luff  
text: However, once a symmetrical sail has wind blowing along its surface, whether on a reach or close-hauled, the windward leech may be called a luff (see below).
text: When on a reach, the windward leech of a spinnaker (symmetrical or not) is called the luff and, when on a reach or close-hauled, the windward leech of a square sail may be called the luff or the .