gaff-topsail

gaff-top·sail

(găf′tŏp′səl, -sāl′)
n. Nautical
A light triangular or quadrilateral sail set over a gaff.

gaff-topsail

n
(Nautical Terms) a sail set above a gaffsail
References in classic literature ?
In the light baffling airs the schooner had been tacking about a great deal, at which times the sails pass from one side to the other and a man is sent aloft to shift over the fore- gaff-topsail.
Let me pause for a minute to look out over the sea sparkling in the sun, or to gaze at a sailor going aloft to the gaff-topsails, or running out the bowsprit, and I am sure to hear the hateful voice, "'Ere, you, 'Ump, no sodgerin'.
The ship boasts three masts over 35 metres tall; 1000 squared metres of sail plan, with 15 sails of various types (square sails, mainsails, gaff-topsail, staysails, jibs), which span three decks.
Live bait can also work but the down side is that the pass has a healthy population of sharks and gaff-topsail catfish.
Other visitors for the festival include Bessie Ellen, one of the last West Country trading ketches, the luxurious gaff-topsail schooner JR Tolkien, plus Mercedes, Phoenix and Ruth.