1. furling - Noun
2. furling - Verb
of Furl
Source: Webster's dictionaryOn a small boat with only jib and mainsail this is done by furling the jib and by partially lowering the mainsail, a process called 'reefing the main'. Source: Internet
However, as the size of the boat increases, the benefits of mainsail roller furling increase dramatically. Source: Internet
Mainsail furling has an additional disadvantage in that its complicated gear may somewhat increase weight aloft. Source: Internet
Mainsail furling is almost never used while racing because it results in a less efficient sail profile. Source: Internet