Design Brief & Intent
Alfred Westmacott, then managing director of the Woodnutts Boatyard on the Isle of Wight, penned the X One Design with a highly specific mission: to provide a seaworthy, affordable, and closely matched day-racer that could tackle the short, steep Solent chop. While Westmacott designed other celebrated regional classes such as the Solent Sunbeam, the Seaview Mermaid, and the Victory, the X One Design was conceived as a slightly smaller, highly accessible keelboat.
Crucially, the class has rigorously resisted the transition to glass-reinforced plastic hulls, unlike many of its twentieth-century peers. The hull shape and dimensions have remained virtually unchanged since the Edwardian era, preserving the purity of the design. The interior layout reflects this singular racing purpose; there is no cabin, no berths, and no head. Instead, the boat features an open-cockpit configuration designed for a crew of two or three. The joinery, including teak coamings, varnished mahogany details, and cedar decks, is executed to the high standards of traditional British boatyards, demanding a level of pride and care from its custodians.
Sailing Performance & Handling
The sailing characteristics of the X One Design are defined by its substantial displacement and deeply reassuring stability. With a displacement of 2,875 pounds on a waterline of just under 21 feet, the XOD is a heavy-displacement design. This mass is reflected in a displacement-to-length ratio of 257.59, which gives the boat the momentum needed to punch through waves rather than bounce over them, a vital attribute when tackling wind-against-tide conditions in the Solent.
The boat is remarkably stiff and stable, carrying an iron ballast keel that yields a ballast-to-displacement ratio of 50.61 percent. It rarely heels beyond fifteen degrees, standing up beautifully to fresh breezes. A sail-area-to-displacement ratio of 15.03 indicates a modest but highly efficient sail plan. Initially configured with a wooden gaff rig, the class updated to a high-aspect spruce Bermudan mast and boom in 1928, subsequently adopting a symmetric spinnaker in 1969.
The comfort ratio of 22.88 is exceptionally high for a 21-foot open boat, translating to a smooth, predictable motion in a seaway. With a capsize screening ratio of 1.67, the hull is mathematically highly resistant to rolling, though as an open boat, the crew must remain attentive to swamping in heavy coastal waters. The helm is highly sensitive and balanced, providing immediate tactile feedback. Because the class rules strictly prohibit electronic navigation aids, sailing an XOD remains a pure test of seamanship, tactical intuition, and traditional wind-and-tide navigation.
Market Standing & Class Economics
The market for an X One Design operates on a plane distinct from typical fiberglass production boats. Ownership of these classic wooden dayboats is viewed primarily as a matter of custodianship rather than simple consumer choice. Because only slightly over 200 hulls have been constructed over the course of more than a century, availability is highly limited, and the boats are heavily concentrated in six regional divisions around the Solent, including Lymington, Yarmouth, Hamble, Itchenor, Parkstone, and Cowes.
On the brokerage market, ready-to-race hulls command a significant premium, reflecting the immense amount of skilled labor required to maintain their wooden structures in race-ready condition. Conversely, older, neglected wooden hulls can sometimes be acquired for a nominal entry-level price. However, prospective buyers must exercise caution, as the cost of a professional structural refit can easily dwarf the ultimate market value of the boat. The economics of owning an X One Design are therefore tied heavily to the active class association and the localized demand of fleet racing, where the enduring competitive parity of these boats ensures they do not suffer from the rapid depreciation typical of modern racing designs.
Known Issues & Maintenance Triage
As with any traditional carvel-planked vessel, the primary structural vulnerability of an older X One Design lies in its wooden backbone and fastenings. Originally constructed of larch or mahogany planking over bent oak frames with an oak or elm keel, these hulls are subject to rot, particularly in the stem, sternpost, deadwood, and around the iron keel bolts. Over decades of hard racing, the high rig tensions can cause the hull to distort or go "soggy," pulling the chainplates and straining the copper fastenings.
The pivotal breakthrough in modernizing these boats came roughly three decades ago, when the Class Association voted to permit the sheathing of the external hulls with epoxy. This decision revolutionized the maintenance profile of the fleet. Un-epoxied boats must be submerged in seawater at the start of every season to allow the planks to swell and "take up" the seams, a process requiring substantial traditional shipwright work, caulking, and painting. By contrast, a fully epoxied hull is significantly stiffer, structurally stabilized, and requires far less annual maintenance, eliminating the risk of dry wood shrinkage. A common point of triage for buyers of older hulls is evaluating whether a boat has been epoxied, the quality of that application, and inspecting the internal ribs and keel structure for concealed rot behind the sheathing.
The Verdict
The X One Design stands as a monument to classic British naval architecture. It is not a boat for those seeking modern cruising comforts or effortless fiberglass maintenance. Instead, it offers a level of tactical racing, historical prestige, and community that few modern classes can match. For the dedicated sailor, owning an XOD is an entry ticket to one of the most competitive and supportive classic fleets in existence.
Pros:
- Outstanding heavy-weather handling and stability in rough coastal chop.
- Highly active, dedicated, and prestigious class association with legendary fleet racing.
- Strict one-design rules ensure competitive longevity, meaning boats built decades apart can race on equal terms.
- High resale value and strong demand for well-maintained, race-ready examples.
- Beautiful classic aesthetics that turn heads in any harbor.
Cons:
- Traditional wooden construction demands high maintenance and specialized shipwright knowledge.
- Completely open dayboat layout with no overnight accommodations, head, or galley.
- Demands highly skilled, hands-on restoration if structural issues or rot develop in the backbone.
- Geographic market is highly localized, making the class less practical outside the south coast of England.





