Design Brief & Intent
The Imperial 23 was conceived as an accessible, family-oriented pocket cruiser designed to maximize interior volume and safety on a modest footprint. L. Wakefield’s design brief was heavily influenced by the typical sailing conditions of the UK's East Coast: shallow waters, strong tides, and the necessity of utilizing inexpensive drying moorings. While its smaller siblings, the Alacrity 19 and Vivacity 20, proved highly successful, the Imperial 23 offered a more mature cruising platform with accommodations that made multi-day coastal hops genuinely feasible.
Cruising capability is reflected in the interior layout, which squeezed sleeping space for four into a 22.5-foot hull. The layout features a dual quarter-berth arrangement in the forward cabin, separated from the main salon by a bulkhead, with two straight settees flanking the companionway. A compact galley is situated on the port side, equipped from the factory with a two-burner stove and a small sink. The marine head is tucked between the bow berths. While the cabin lacks standing headroom, Wakefield utilized a highly efficient fiberglass structural liner accented with mahogany or teak joinery to create a warm, nautical aesthetic that resisted the dampness of tidal sailing. Compared to American competitors of the late 1960s, which often prioritized sleek lines and planing potential, the Imperial 23 focused on structural solidity, dry hulls, and interior utility.
Variations & Configurations
The defining characteristic of the Imperial 23 is its twin-keel (or bilge-keel) configuration. Engineered specifically for tidal versatility, the dual low-aspect iron keels draw only 2.75 feet, allowing the boat to remain perfectly upright on a drying mudflat or sandy beach when the tide recedes. Although single-fin keel versions of many bilge-keelers were built to satisfy deep-water markets, the Imperial 23 was built almost exclusively as a twin-keeler, with the hull’s laminate schedules designed from the outset to bear the localized loads of sitting on its own appendages.
Spars and rigging also saw minor variations, particularly between European and North American deliveries. The standard rig is a simple masthead sloop utilizing a deck-stepped mast. In Europe, early models frequently shipped with wood or gold-anodized alloy spars and Barton roller reefing, which rolled the mainsail around the boom. North American imports handled by Wells Yachts often featured US-built alloy spars, upgraded stainless steel deck hardware, and slightly modified single-stay backstay arrangements in contrast to the split-stay configurations seen on some early British models.
Auxiliary power was highly adaptable. The stern deck features a deeply molded, self-draining enclosed outboard well. Early factory models were offered with a manual worm-gear lifting mechanism that raised the outboard motor vertically out of the water, sealing the bottom of the hull with a custom fairing plug to eliminate drag. While a few boats were fitted with tiny inboard gasoline engines—such as the single-cylinder Vire—or small single-pot diesels, the overwhelming majority of surviving examples utilize an outboard in the 6 to 9.9 horsepower range.
Sailing Performance & Handling
Evaluating the Imperial 23 under sail requires an understanding of its vintage hull form and twin-keel dynamics. With a displacement of 2,700 pounds and a ballast weight of 1,120 pounds, the boat possesses an extraordinarily high ballast-to-displacement ratio of 41.48 percent. This substantial ballast, carried low in the twin iron keels, makes the boat incredibly stiff and stable. It resists initial heel and provides a safe, upright riding characteristic that reassures novice sailors and families.
The physical implications of its other design ratios are equally distinct. The sail area-to-displacement ratio of 17.33 indicates a moderate sail plan that can easily propel the boat to its theoretical hull speed of 6.0 knots in a steady breeze. However, with a displacement-to-length ratio of 150.67, the hull is relatively light for a full-keeled design of its generation, meaning it does not carry momentum through a heavy chop as well as a heavier displacement vessel. The motion comfort ratio of 13.73 reflects this limitation; while predictable and stable in sheltered coastal waters and lakes, the boat will feel lively and wet when confronting significant open-ocean swells.
At the helm, the skeg-mounted rudder and tiller provide positive steering control. When sailing off the wind, on a reach, or downwind, the twin keels act as effective stabilizers, and the boat tracks remarkably straight. Sailing close-hauled, however, reveals the inherent compromise of the bilge-keel design. The low-aspect, asymmetric foils generate more hydrodynamic drag and allow more leeway than a modern deep fin. The tacking angle is typically wider—often exceeding 95 to 100 degrees—and the helmsman must keep the boat moving fast through a turn, as the lack of a deep central pivot point can cause the vessel to lose steerageway if tacked sluggishly.
Known Issues & Triage
For a vessel entering its sixth decade, a rigorous structural assessment is critical before embarking on any cruising plans. Hull osmosis is a common issue for Russell Marine builds of this era. The hand-laid fiberglass laminates are exceptionally thick and structurally sound, but the early polyester resins are highly susceptible to moisture absorption, resulting in localized blistering. Triage requires hauling the boat, stripping the bottom paint to assess the extent of the blisters, and applying an epoxy barrier coat.
The keel-to-hull joints on any twin-keel boat must be inspected with extreme care. Decades of grounding the boat on drying moorings can cause immense stress on the internal floor timbers and the fiberglass hull laminate surrounding the keel plates. Owners should check the bilge internally for stress cracks or weeping around the iron keel bolts. Externally, the joint should be inspected for rust bleeding or hairline cracking—often referred to as a "smile"—which requires grinding back the joint, cleaning the backing plates, and potentially dropping the keels to re-bed them with modern polyurethane sealants.
On deck, the primary failure point is the mast step and its corresponding internal support. The deck-stepped mast is supported by an internal compression beam. Over time, water intrusion through the mast step wiring holes or deck organizer bolts can rot the core in this area, causing the deck to sag slightly and throwing the standing rigging out of tension. Under-deck chainplates should also be inspected for leaks that can rot the structural bulkheads they are through-bolted to. Additionally, the original large Plexiglas cabin side windows were sealed with H-profile rubber gaskets that dry-rot over time, resulting in prominent cabin leaks.
Finally, the enclosed outboard well presents a modern compatibility issue. The well was originally designed around the slim profiles of 1960s and 1970s two-stroke outboard motors. Modern four-stroke outboards, with their wider powerheads and bulkier shifting linkages, often will not fit inside the well or will restrict the motor's steering arc.
Modernization & Upgrades
Modernizing an Imperial 23 can dramatically improve its ease of use and safety. The primary rigging upgrade involves replacing the obsolete boom-roller reefing system with a modern slab-reefing configuration. Installing a lazy-jack system and running the halyards and reefing lines back to the cockpit via deck organizers and clutches allows for single-handed sail management from the safety of the companionway.
Electrical systems on these boats are typically primitive or entirely degraded. Because the boat lacks the heavy draw of refrigeration or power winches, a highly efficient modernization path is the installation of a small lithium iron phosphate (LiFePO4) battery bank coupled with a flexible marine solar panel mounted on the cabin top or stern rail. This setup easily satisfies modern LED lighting, VHF radio, depth sounders, and USB charging ports without the need for complex charging circuits.
The enclosed outboard well also makes the Imperial 23 an ideal candidate for electric propulsion conversion. Replacing a noisy, heavy gasoline outboard with a lightweight electric outboard—such as an ePropulsion or Torqeedo unit—eliminates the vibration, exhaust fumes, and gasoline storage hazards associated with tight stern compartments. Since the motor can be controlled via a remote throttle mounted near the tiller, the physical space constraints of the vintage outboard well become far less of an obstacle.
The Verdict
The Imperial 23 is a rugged, character-filled classic that offers a rare combination of pocket-cruiser charm and practical tidal capability. For sailors seeking a low-cost, trailerable boat capable of exploring shallow bays, rivers, and drying estuaries, its heavy layup and twin-keel stability make it an appealing choice. However, those prioritizing modern windward performance or blue-water passage-making should look elsewhere. It remains a beloved design for DIY traditionalists who value the ability to beach their vessel upright and step off onto dry land.
Pros
- Twin-keel design allows the boat to stand upright on drying moorings and navigate exceptionally shallow waters.
- Solid, hand-laid fiberglass construction provides a robust and forgiving hull.
- High ballast ratio makes the vessel stiff, stable, and highly resistant to initial heel.
- Enclosed outboard well keeps the motor protected and retains the clean aesthetic of the transom.
- Cozier but highly functional interior layout with dedicated space for a galley and marine head.
Cons
- Poor windward performance with significant leeway and a wider tacking angle compared to fin-keeled designs.
- Lack of standing headroom limits comfort during extended stays onboard.
- Tight tolerances in the outboard well make fitting modern four-stroke outboards difficult.
- Age-related vulnerability to hull osmosis and deck rot near the mast step compression beam.
- Capsize screening ratio limits its safe operation to coastal and protected inland waters.
