The top on a traditional

square rigged Square rig is a generic type of sail and rigging arrangement in which the primary driving sails are carried on horizontal spar SPAR, originally DESPAR, styled as DE SPAR, is a Dutch multinational that provides branding, supplies and suppo ...

ship, is the platform at the upper end of each (lower) mast. This is not the masthead "

crow's nest A crow's nest is a structure in the upper part of the main mast of a ship or a structure that is used as a lookout point. On ships, this position ensured the widest field of view for lookouts to spot approaching hazards, other ships, or land b ...

" of the popular imagination – above the mainmast (for example) is the main-topmast, main-topgallant-mast and main-royal-mast, so that the top is actually about 1/4 to 1/3 of the way up the mast as a whole. The main purpose of the top is to anchor the shrouds of the topmast that extends above it. Shrouds down to the side of the hull would be at too acute an angle from the mast, so crosstrees running sideways out from the mast to spread the topmasts shrouds. These crosstrees rests on two

trestle tree ATLAS-I (Air Force Weapons Lab Transmission-Line Aircraft Simulator), better known as Trestle, was a unique electromagnetic pulse (EMP) generation and testing apparatus built between 1972 and 1980 during the Cold War at Sandia National Laborato ...

s running fore and aft, which themself are placed on top of the cheeks of hounds, bolted to the sides of the mast. Placing a few timbers onto the crosstrees produces a useful platform, the top. The

futtock shrouds {{for, 1970 British television comedy, Futtocks End Futtock shrouds are rope, wire or chain links in the rigging of a traditional square rigged ship. They run from the outer edges of a top downwards and inwards to a point on the mast or lowe ...

carry the load of the upper shrouds into the mast below. At the upper end of the topmast and topgallant, there is a similar situation regarding the next mast up (topgallant and royal respectively). At these points a smaller top might be constructed, but it is more usual simply to leave the shroud-bearing struts open, in which case they are known as crosstrees. Access for sailors to the top may be by a

Jacob's ladder Jacob's Ladder ( he, סֻלָּם יַעֲקֹב ) is a ladder leading to heaven that was featured in a dream the biblical Patriarch Jacob had during his flight from his brother Esau in the Book of Genesis (chapter 28). The significance of th ...

, lubber's hole, or the

. A foremast might be stepped into a similar fore-top platform on the foremast. A mizzen-top would be a platform on the mizzenmast. Similar main-top and fore-top platforms have been retained on steam ships and motor vessels as preferred locations for installing rotating

radar Radar is a detection system that uses radio waves to determine the distance ('' ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, we ...

antennae.

Fighting top

A fighting top was an enlarged top with swivel guns, designed to fire down at the deck of enemy ships. They could also hold sailors or marines armed with muskets or rifles; Horatio Nelson was mortally wounded at the

Battle of Trafalgar The Battle of Trafalgar (21 October 1805) was a naval engagement between the British Royal Navy and the combined fleets of the French and Spanish Navies during the War of the Third Coalition (August–December 1805) of the Napoleonic Wars (180 ...

by a sniper firing from a fighting top of the ''Redoutable''.

External links

Sources

{{DEFAULTSORT:Top (Sailing Ship) Sailing rigs and rigging