The Ericson 23-1, frequently referred to as the Ericson 23 Mark I, represents one of the earliest and most successful collaborations between Ericson Yachts and the legendary naval architect Bruce King. Introduced in the late 1960s—specifically around 1968—this model was designed to bridge the gap between a spirited day sailer and a capable weekend cruiser. At a time when the fiberglass revolution was still maturing, the 23-1 stood out for its high-aspect rig and a sophisticated underbody that featured a spade rudder, a relatively progressive choice for a production boat of that era. Built with the robust scantlings characteristic of early Southern California fiberglass construction, the vessel offered a level of structural confidence that allowed it to venture beyond protected harbors, a trait that has helped many examples survive into the 21st century.
Ericson 23-1 Information, Review, Specs
- Make
- Ericson
- Model
- 23-1
- Builder
- Ericson Yachts
- Designer
- Bruce King
- Number Built
- 140
- Production Year(s)
- 1969 - 1971
Sailing Performance & Handling
The sailing characteristics of the Ericson 23-1 are defined by Bruce King’s penchant for balance and efficiency. Unlike many of its contemporaries that relied on heavy displacement to achieve stability, the 23-1 utilized a generous ballast-to-displacement ratio (often exceeding 40%) to maintain an upright posture. This makes the boat feel notably "stiff" in a breeze, a quality often praised in owner retrospectives. The spade rudder, positioned well aft, provides exceptionally light and responsive helm feedback, allowing the boat to tack quickly in confined spaces.
According to original Ericson 23 Design Documentation, the boat was offered in both a fixed keel and a shoal-draft centerboard configuration. The fixed keel version, drawing roughly 3 feet 9 inches, is the preferred choice for those prioritizing upwind pointing ability and tracking. In light air, the 23-1 is surprisingly nimble due to its relatively low wetted surface area, while in heavier conditions, it remains predictable, though like most 23-footers, it will benefit from early reefing to manage its high-aspect mainsail.
Interior Comfort & Variations
For a vessel of its size, the Ericson 23-1 provides a functional, albeit snug, interior suitable for overnighting. The layout is a classic four-berth arrangement: a forward V-berth followed by a compact main cabin with two settee berths. Because the 23-1 features a relatively low profile and a sleek coachroof, standing headroom is non-existent for the average adult, a trade-off for its aesthetic lines and reduced windage.
The interior was typically finished with mahogany or teak trim against a white fiberglass liner, giving it a warmer feel than the "all-plastic" interiors of cheaper competitors from the same era. Variations of the 23-1 often focused on the galley and head arrangements; most units were equipped with a slide-out galley tray or a small fixed counter for a pressurized stove, and a portable or marine head tucked beneath the V-berth.
The 23-1 had a significant sibling evolution. While the 23-1 (Mark I) utilized a specific Bruce King hull form, it was eventually succeeded by the Ericson 23-2 in the mid-1970s. The 23-2 was a completely different design, featuring more interior volume and a higher trunk cabin. Later, in the 1980s, the "Ericson 23" name was reused for a much larger-feeling boat (sometimes called the 23-3 or 23 Plus) that shared design DNA with the Ericson 25+, further complicating the model's lineage for modern researchers.
Known Issues & Buyer’s Checklist
Prospective buyers of an Ericson 23-1 should focus their inspections on the common vulnerabilities of 1960s and 70s fiberglass construction.
- Deck Core Integrity: Like many boats of this vintage, the Ericson 23-1 uses a balsa-cored deck. Moisture ingress around the chainplates, stanchion bases, and the mast step is common. Soft spots in these areas indicate delamination and rot that require significant structural repair.
- Mast Step Compression: The deck-stepped mast relies on a support post (compression post) inside the cabin. Over time, the structural block beneath the mast or the base of the post can rot or compress, leading to a "sagging" deck and poor rig tension.
- Swing Keel Pivot and Cable: For versions equipped with the centerboard, the pivot pin and the lifting cable are critical failure points. If the board has not been serviced, the pin can wear through the fiberglass housing or the cable can snap, potentially leading to a "thumping" sound while underway.
- Chainplate Attachment: Inspect the points where the shrouds meet the hull. On older Ericsons, the fiberglass knees or bulkheads where the chainplates bolt can show signs of stress cracking or water damage, which compromises the rig's safety.
Community & Resources
Owners of the Ericson 23-1 are supported by a remarkably dedicated community. The primary hub for technical data is EricsonYachts.org, which hosts an extensive archive of original brochures, owner manuals, and a "Vessel Registry" specifically for tracking the history of individual hulls. This association is vital for sourcing replacement parts or finding DIY solutions for legacy issues like rudder replacement or portlight resealing.
The Verdict
The Ericson 23-1 is a classic "pocket cruiser" that offers a purer sailing experience than many modern, high-volume trailer sailors. It is a boat for the sailor who values aesthetics and helm feel over standing headroom.
Pros:
- Exceptional Aesthetics: Bruce King’s lines remain timeless and elegant.
- Responsive Handling: The spade rudder and balanced rig make it a joy to steer.
- Solid Construction: Built during an era of "heavy" fiberglass layups.
- Active Community: Strong support network for parts and advice.
Cons:
- Limited Headroom: The low profile forces a "sitting-only" interior experience.
- Age-Related Maintenance: Buyers must be prepared to address 50-year-old deck cores and rigging.
- Small Galley: Better suited for weekend camping than extended cruising.
Measurements
Construction & Hull
- Construction Material
- Fiberglass
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Spade
- Ballast
- 1300 lbs (Lead)
- Displacement
- 2700 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 22.58 ft
- Waterline Length (LWL)
- 19.17 ft
- Beam
- 7.5 ft
- Draft
- 3.67 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 21 ft
- E (Main Foot)
- 9.5 ft
- I (Foretriangle Height)
- 26.3 ft
- J (Foretriangle Base)
- 8.75 ft
- Forestay Length (est)
- 27.72 ft
- Sail Area
- 215 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 17.74
- Ballast / Displacement Ratio
- 48.15
- Displacement / Length Ratio (D/L) Ratio
- 171.1
- Comfort Ratio
- 14.11
- Capsize Screening Formula
- 2.15
- Hull Speed
- 5.87 kn