Research Note


Origin of Term - "Cro'jack Yard"

John Harland

The traditional three mast ship of the 16th C was square rigged on fore and main, while the mizzen yard and mizzen course lay fore and aft. The Dutch introduced a square topsail above this, which they quite logically called the 'cross-sail' (Kruis-Zeil) set on the 'Cross-sail Yard' (Kruis-Ra). The yard below it , which spread its clews, was called amongst other things, the 'Bagien-Ra'. The reference being to an order of nuns, and signifying that it was bereft of a sail. The Romance languages use expressions with the literal meaning 'Dry yard' ...Verga Seca, etc. The lateen mizzen-course was more effective when sailing by the wind, while the mizzen topsail or "Cross-sail" was set when off the wind. The English seamen picked up the 'cross' idea but applied it to the yard below the mizzen topsail, rather than to the mizzentopsail yard itself.

As has been pointed out there was a short period in the late 19th C when a sail was set on the cro'jack yard. It is to been in many contemporary paintings but almost always brailed up, because on most points of sail it blanketted the main course.

The word 'cross' extends to the way masts were named in Dutch and German vessels. The aftermost mast of a German barque was the 'Besahn-mast' (Mizzenmast) while the corresponding mast in a ship was the 'Kreuzmast' (Literally Crossmast).
{John H Harland}


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