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moonraker in Wiktionary, the free dictionary.
A moonraker, also known as a moonsail, [1] hope-in-heaven, or hopesail,[ citation needed] is a square sail flown immediately above a skysail (see sail-plan) on the royal masts of a square-rigged sailing ship. None of the four- and five-masted square-rigged ships carried a moonsail.[ citation needed]
The equivalent sail, if triangular, is called a skyscraper. [1]
Moonrakers are relatively unusual sails only used on ships built primarily for speed.[ citation needed]
References
- ^ a b Smyth, W. H. (1867). "sky-scraper". In Belcher, Edward (ed.). The Sailor's Word-Book: An Alphabetical Digest of Nautical Terms, Including Some More Especially Military and Scientific... London: Blackie and Son. p. 631. Retrieved June 24, 2017.