Snow

The snow was the workhorse of Atlantic commerce and predation during the Golden Age of Piracy. Unlike the larger ship or the nimble sloop, the snow occupied a critical middle ground—fast enough to chase merchant vessels, capacious enough to carry substantial cargo or crew, and maneuverable enough to escape naval pursuit or navigate shallow colonial harbors. Built primarily in New England and the British Isles between 1680 and 1720, snows were favored by both legitimate traders and pirates including Captain Bartholomew Roberts, whose snow Royal Fortune (1720) became one of the most feared vessels of the era. The snow's distinctive double-mast configuration, with a trysail mast stepped immediately behind the main mast, gave it superior sail control and made it the preferred platform for raiders operating from Madagascar to the Caribbean.

The snow's defining innovation was the trysail mast—a small, independent spar positioned directly abaft the main mast, allowing a fore-and-aft sail (the trysail) to be set independently of the square sails. This configuration granted unprecedented flexibility: a snow could maintain headway in light winds using only the trysail, or deploy full canvas for pursuit. The hull design favored shallow draft and relatively narrow beam, enabling snows to operate in waters where larger ships of 200+ tons could not venture. The double-mast arrangement also distributed stress more evenly than single-mast designs, reducing the catastrophic failure risk in heavy weather. Snows typically featured a pronounced sheer (upward curve toward bow and stern) and a rounded bow, characteristics that improved seaworthiness in Atlantic swells while maintaining cargo capacity. The relatively modest size meant faster construction and lower capital investment than ships, making snows attractive to colonial shipyards and pirate syndicates alike.

The snow emerged in the 1660s as a refinement of the earlier sloop and brigantine designs, achieving widespread adoption by the 1680s. Dutch and English shipwrights, particularly those in New England, recognized that the trysail mast solved a critical problem: vessels of 60–90 tons struggled to work to windward in light air or when heavily laden. By the 1690s, snows dominated the colonial merchant fleet—employed in the triangular trade (rum, molasses, enslaved persons), the timber trade, and coastal provisioning. When piracy intensified after 1695, particularly with the emergence of Indian Ocean raiders, snows became the preferred capture for pirates. The vessel's speed, cargo capacity, and ability to navigate both open ocean and shallow colonial waters made it ideal for raiding merchant convoys and then retreating to remote anchorages. Between 1700 and 1725, snows accounted for approximately 15–20 percent of documented pirate vessels, a proportion second only to sloops. The snow's dominance in piracy declined after 1725 as naval patrols intensified and colonial authorities invested in faster, better-armed naval vessels designed specifically to counter pirate snows.

The snow was a direct response to the limitations of earlier two-masted designs in the context of expanding Atlantic commerce. Merchant vessels needed to carry cargo profitably while maintaining sufficient speed to avoid pirates and privateers; naval vessels required similar balance. The trysail mast innovation allowed shipwrights to increase cargo capacity without sacrificing windward performance—a critical advantage in an era when predictable, scheduled transatlantic passages were becoming economically essential. For pirates, the snow offered an ideal platform: it was fast enough to overtake most merchant vessels, capacious enough to carry plunder and provisions for extended cruises, and small enough to be crewed by 40–60 men (manageable for a pirate syndicate), yet large enough to mount sufficient guns (8–12) to intimidate merchant crews. The snow's prevalence in New England shipyards also meant that captured snows could be refitted quickly and cheaply, making them economically attractive to pirate captains operating on limited budgets. The vessel thus existed at the intersection of legitimate commerce and predation—equally suited to both, and therefore equally desired by both.

A merchant snow's daily routine centered on maintaining sail trim and cargo security. The watch system divided the crew into two or three shifts, each responsible for sail adjustment, steering, and lookout duties. In fair weather, the crew would spend mornings on maintenance—splicing rope, caulking seams, tarring rigging. Afternoons often involved trading or provisioning at colonial ports; the snow's shallow draft allowed it to enter rivers and harbors inaccessible to larger ships. A pirate snow operated under different pressures. The crew maintained constant vigilance for merchant vessels and naval patrols, with lookouts stationed at the masthead during daylight. Sail handling was practiced obsessively; the ability to deploy or furl canvas rapidly could mean the difference between capture and escape. Gunnery drills were frequent and mandatory. The captain (often elected or subject to articles) held authority over navigation and tactical decisions, while the quartermaster managed provisions, discipline, and the distribution of plunder. Food aboard both merchant and pirate snows consisted primarily of salt beef, salt pork, hardtack, dried peas, and beer; fresh water was rationed carefully. Disease, particularly scurvy and dysentery, was endemic; snows operating on long cruises suffered mortality rates of 10–20 percent from illness alone.

Snow construction followed established shipwright practices of the late 17th and early 18th centuries. The process began with the laying of the keel—a heavy timber typically 50–75 feet long, made from oak or similar hardwood. Frames (ribs) were then erected perpendicular to the keel, spaced approximately 18 inches apart; these provided the hull's structural skeleton. The planking—outer hull boards, typically 1.5–2 inches thick—was then attached to the frames using wooden pegs (trunnels) and iron nails. The planking was caulked (sealed) with oakum (tarred rope fibers) driven into seams using a caulking iron and mallet, then sealed with pitch or tar. The deck was laid using similar planking, with gaps left for hatches (cargo access) and the mast partners (openings for masts). The trysail mast was stepped (installed) immediately abaft the main mast, typically 12–16 feet aft. Masts were made from single trees or spliced together from multiple pieces; the main mast was typically 45–60 feet tall. Rigging—the network of ropes supporting the masts and controlling the sails—was then installed, a process requiring weeks of labor. The entire construction process, from keel-laying to launch, typically required 6–12 months for a 60–90 ton snow, depending on the availability of materials and labor. New England shipyards (Boston, Newport, Providence) were particularly efficient, completing snows in 6–8 months; British yards typically required 10–12 months. The cost of a new snow ranged from £400 to £800 in the early 1700s, making it an affordable vessel for merchant syndicates but a significant investment for pirate crews, who typically captured and refitted existing vessels rather than building new ones.