Every October, when the summer fog has finally cleared and San Francisco Bay settles into the clean northwest winds of autumn, a small fleet of unusually beautiful sailboats gathers off the City Front. Their mainsails are four-sided. Their booms extend well past their transoms. Their masts are heavy and their rigging — a web of hemp-like lines running to deadeyes, belaying pins, and wooden blocks — is complex in a way that modern sailors find both beautiful and slightly alarming. These are gaff-rigged yachts, sailing vessels built in the tradition of the 19th century, and they are gathering to race the Jessica Cup.
In a sailing world that has largely standardized around the efficient bermudian rig — the triangular mainsail that dominates everything from racing dinghies to offshore passage-makers — the Jessica Cup occupies a rare and deliberate corner. It is a race for boats that chose a different path, or more accurately, boats whose builders and owners chose to preserve a path that the mainstream left behind.
What Is a Gaff Rig?
The gaff rig takes its name from the gaff spar — a horizontal or angled pole that supports the upper edge of the mainsail, extending the sail area above the mast. The result is a four-sided mainsail, the characteristic shape of the working sail for much of recorded maritime history. Through the 19th century and into the early 20th, the gaff rig was the universal configuration for working and cruising vessels: fishing schooners, coastal traders, oyster dredgers, pilot cutters, and the great lumber schooners of the Pacific Coast all sailed under gaff rig. The wharves of San Francisco, in the city's commercial prime, would have shown nothing but gaff-rigged vessels from one end to the other.
The gaff rig's practical advantages were real. It kept the center of effort lower than a very tall bermudian rig, reducing the tendency to heel hard in a blow. It allowed enormous sail area to be spread across multiple smaller panels — gaff mainsail, foresail, jib, topsail, staysail — making the total canvas manageable for shorthanded crews through conditions that would overwhelm a single large sail. And it produced a vessel that looked, under sail, like nothing else in the modern world.
The bermudian rig's advantages were aerodynamic. A triangular sail with a tall, narrow aspect ratio generates more lift per square foot of canvas and points closer to the wind. By the 1930s the bermudian rig had largely replaced the gaff on racing yachts; by the 1960s it had come to dominate the cruising fleet as well. What survived was the enthusiasm of a small, committed community of owners who found the older form more interesting — and the Jessica Cup to give them a reason to keep the boats race-ready.
The Race and Its Rules
The Jessica Cup is hosted by the St. Francis Yacht Club at the Marina Green, the same club that serves as start and finish for the broader Master Mariners Memorial Weekend Regatta. Race day begins with a warning signal from the Race Deck, with courses laid out on the Central Bay — the broad, deep water between San Francisco and Marin County, where the ebb tide runs hard and the afternoon breeze builds into something that separates the careful crews from the careless ones.
Eligibility is deliberately specific. Gaff-rigged vessels must measure at least 30 feet on deck. Marconi-rigged (bermudian) vessels are also eligible if they are of traditional design and construction and meet the minimum length — a provision that allows well-preserved wooden yawls and ketches to compete alongside the gaff fleet. The Farallon Clipper class, a San Francisco Bay design with a long local history, maintains its own division. Handicapping is assigned by the Jessica Cup Committee based on measurement data, allowing boats of very different sizes and types to race competitively against one another on corrected time.
The atmosphere on race day is unlike anything on the modern circuit. Starting lines for one-design regattas tend toward the tactical and tightly crewed; the Jessica Cup start is more deliberate, as owners manage the complex task of getting a gaff rig precisely on the line at precisely the right moment while juggling a mainsail that does not respond quickly to last-second adjustments. The racecourse becomes a gallery of working maritime history under sail.
Who Sails the Jessica Cup?
The gaff-rigged fleet on San Francisco Bay is small but committed. The vessels range from 30-foot cutters to full-sized schooners of 60 feet and beyond, from restored 1920s-era wooden classics to modern cold-molded or steel hulls built in the traditional style. What they share is a commitment to a way of sailing that demands considerably more skill and attention than a modern production boat — more lines to manage, more sail combinations to choose from, more to go wrong, and correspondingly more satisfaction when everything goes right in a good breeze.
The owners and crews tend to be people who arrived at sailing through an interest in maritime history, traditional craft, or wooden boatbuilding. They are disproportionately likely to have built or substantially restored their own boats, to have worked with traditional riggers and wooden boat yards, and to hold strong opinions about the correct species of wood for a particular application. They are, in the experience of anyone who has spent time around them, skilled sailors — because sailing a gaff rig well in the variable conditions of San Francisco Bay requires a level of attentiveness that the modern rig simply does not demand.
After racing, competitors and guests gather at the St. Francis for a trophy banquet — an occasion that tends, appropriately, toward the convivial and lengthy. These are boats that require constant and expensive maintenance; the regatta provides the motivation to have everything looking its best, and the banquet provides the opportunity to argue at length about whose vessel came through the season in better condition.
Classic Racing on the West Coast
The Jessica Cup is part of a larger ecosystem of classic and traditional yacht racing that exists alongside — and in quiet conversation with — the modern racing circuit. Events like the Eggemoggin Reach Regatta in Maine, the Gloucester Schooner Race in Massachusetts, and the Antigua Classic Yacht Regatta draw similar communities of traditional boat owners. The wooden boat show circuit — from Port Townsend, Washington to Mystic, Connecticut — provides the shore-side counterpart, where the same boats are appreciated at rest rather than at speed.
On the West Coast, the culture of wooden boat sailing runs deep through both the working history of Pacific Coast lumber and fish trades and the racing history of San Francisco Bay clubs that date to the 1860s. The Jessica Cup preserves something specific within that broader culture: the experience of racing under a rig that was the universal standard for ocean-going vessels for most of the last four centuries, handled by people who have chosen to keep that knowledge alive.
A gaff rig under full sail — topsail set, boomed foresail drawing, wake straight — is one of the most complete visual expressions of what sailing looked like for the majority of its history. The Jessica Cup fleet offers that spectacle on open water, in a race.
For sailors used to the clean simplicity of the modern rig, watching a gaff-rigged vessel tack is a revelation. The gaff must be eased as the bow comes through the wind, the foresail backed if necessary, the gaff peaked up again on the new tack — a sequence of operations that requires a practiced crew and produces, when done well, a kind of seamanship that looks more like choreography than racing. The Jessica Cup is, among other things, a competition in how well that choreography can be performed under pressure.