Latterly a clincher-built boat with covered fore-sheets, and one mast with a trysail.
"The Sailor's Word-Book" by William Henry Smyth
Clincher built A clin.
"English-French and French-English dictionary of the motor car, cycle, and boat" by Frederick Lucas
But even with the power-meter hub, the 45mm wheelset weighs 1,540 grams in the clincher version, right in line with other high-end 45mm wheels built on standard hubs.