Historical Materials

In general, brigs were small to medium size merchant vessels, generally ranging between 80 and 120 feet in hull length. Their hull forms ranged from sharp-ended (for greater speed; see Brig "Antelope" in Boston Harbor, 1863 (inv. 43)) to “kettle-bottom” (a contemporary term for full-ended with wide hull bottom for maximum cargo capacity; see Ships in Ice off Ten Pound Island, Gloucester, 1850s (inv. 44) and Boston Harbor, c.1850 (inv. 48)). The former were widely used in the packet trade (coastwise or transoceanic); the latter were bulk-carriers designed for long passages on regular routes. (1) This rig was favored by Gloucester merchants in the Surinam Trade, which led to vessels so-rigged being referred to by recent historians as Surinam brigs (see Brig "Cadet" in Gloucester Harbor, late 1840s (inv. 13) and Gloucester Harbor at Dusk, c.1852 (inv. 563)). (2)

Brigs are two-masted square-rigged vessels which fall into three categories:

Full-rigged brigs—simply called brigs—were fully square-rigged on both masts. A sub-type—called a snow—had a trysail mast on the aft side of the lower main mast, on which the spanker, with its gaff and boom, was set. (3)

Brigantines were square-rigged on the fore mast, but set only square topsails on the main mast. This type was rarely seen in America in Lane’s time, but was still used for some naval vessels and European merchant vessels. The term is commonly misapplied to hermaphrodite brigs. (4)

Hermaphrodite brigs—more commonly called half-brigs by American seamen and merchants—were square-rigged only on the fore mast, the main mast being rigged with a spanker and a gaff-topsail. Staysails were often set between the fore and main masts, there being no gaff-rigged sail on the fore mast.

– Erik Ronnberg

References:

1. Howard I. Chapelle, The National Watercraft Collection (Washington, DC: Smithsonian Institution, 1960), 64–68.

2. Alfred Mansfield Brooks, Gloucester Recollected: A Familiar History (Gloucester, MA: Peter Smith, 1974), 62–74. A candid and witty view of Gloucester’s Surinam Trade, which employed brigs and barks.

3. R[ichard] H[enry] Dana, Jr., The Seaman's Friend (Boston: Thomas Groom & Co., 1841. 13th ed., 1873), 100 and Plate 4 and captions; and M.H. Parry, et al., Aak to Zumbra: A Dictionary of the World's Watercraft (Newport News, VA: The Mariners’ Museum, 2000), 95.

4. Parry, 95, see Definition 1.