Design and Construction
The Sailer 23 is a solid fiberglass monohull with a fiberglass deck, built by the British yard Seamaster Ltd. to a Laurent Giles hull form described as a heavy cruiser by its displacement-length ratio of 290. Her ballast ratio sits at 40 percent, and the builder offered her with either a bilge keel or a lifting keel — the bilge-keel twin arrangement lets the boat take to the beach, while the lifting-keel variant goes from 2 feet 6 inches board-up to 5 feet 6 inches board-down, giving a remarkable range for a 23-footer. Period databases note her length-to-beam ratio of 2.80 made her roomier than many comparable designs, and her above-average headroom was singled out in a review as a genuine accommodation strength rather than a marketing claim.
Rig and Handling
She carries a masthead sloop rig with a standard mainsail of 110 square feet and a No. 1 staysail of 120 square feet, and owners could opt for a 177-square-foot genoa, a No. 2 and No. 3 staysail, or a spinnaker. Sheet specs are modest — 10 mm diameter throughout, with a 17.5 m mainsheet and 7 m jib and genoa sheets — suited to short-handed control. Under power the reported cruise speed is 5.0 knots with a max of 6.0, against a theoretical displacement-hull maximum of 5.9 knots; the capsize screening value is 1.92 and the motion comfort ratio is 22.3, a figure that placed her as more comfortable than similar sailboats in one comparative assessment. The shaft-drive transmission paired with a choice of small engines, from a 6 hp Stuart Turner petrol to a 10 hp Bukh diesel.
Accommodations
Writing in Sailing Today, reviewers placed the Sailer 23 directly against the Pageant — another Laurent Giles design — and concluded the two shared similar accommodation at a slightly lower price for the Seamaster. The above-average headroom for the length gives the interior a less cramped feel than many rivals of this size, and the heavy-cruiser displacement and comfort ratio suggest a stable, easy motion at anchor and under way that befits a small family cruiser rather than a racer.
Refits and Ownership
Engine options were broad for the era: the original buyer could specify a Stuart Turner 6 hp petrol, an Albin 5 hp petrol, a Volvo MD1 6 hp diesel, or a Bukh 10 hp diesel, all shaft-driven. The lifting-keel version demands attention to centreboard gear, and the bilge-keel version to twin-keel bonding. The boat was still being written up decades later, featured in the July 2001 Sailing Today alongside the Pageant and other similar-sized cruisers.
The Verdict
The Seamaster Sailer 23 is a thoughtfully conceived small cruiser from the late-1960s British fiberglass wave, offering a rare keel flexibility and a comfort-oriented hull at a modest size. Her Laurent Giles pedigree and above-average headroom make her a sensible trailer- or shore-based starter, though the lifting keel adds complexity and the shallow-draft bilge version trades windward ability for beachability.
Pros
- Keel options including beachable bilge keel and deep-draft lifting centreboard
- Above-average headroom and roomy beam for the length
- High motion comfort ratio relative to peer designs
- Multiple period engine choices, all shaft drive
Cons
- Lifting-keel mechanism adds maintenance overhead
- Modest sail area limits light-air performance versus larger cruisers
- Production ended in 1975, limiting parts commonality with later Seamaster lines
