Grampian 23 Information, Review, Specs

Grampian 23 Drawing
Make
Grampian
Model
23
Builder
Grampian Marine
Designer
Alex McGruer
Number Built
450
Production Year(s)
1971 - 1976

The Grampian 23, designed by Alex McGruer and introduced in the early 1970s, serves as a testament to the era of "pocket cruisers" that prioritized interior volume and stability over raw racing speed. Built by Ontario’s Grampian Marine during the company’s peak years, this model was developed to offer a more manageable and trailorable alternative to the legendary Grampian 26, while retaining the "big boat" feel that defined the brand. With a beam of 8 feet 2 inches, the 23-footer was notably wide for its time, a design choice intended to maximize cabin space and provide a stiff, upright sailing experience for families and novice sailors.

Sailing Performance & Handling

Under sail, the Grampian 23 is characterized by its stability and predictable manners. Because it possesses a relatively high displacement for its length—approximately 3,800 to 4,000 pounds depending on the configuration—it does not possess the "flighty" or tender nature common in many modern 23-footers. Instead, it handles like a much larger yacht, absorbing chop with a dampened motion that instills confidence in heavy weather.

The boat was offered in two primary underwater configurations: a fixed-keel version with a draft of 3 feet and a swing-keel (centerboard) version designed for easier trailering and shallow-water exploration. The fixed-keel model is generally preferred for its tracking ability and reduced maintenance, while the swing-keel version allows access to gunkholes inaccessible to deeper drafts. According to technical discussions found via the Grampian Owners Marina, the boat’s moderate sail area-to-displacement ratio means it requires a decent breeze to come alive; in light air, the hull's significant wetted surface can make it feel sluggish compared to dedicated club racers. However, once the wind reaches 10 to 12 knots, the McGruer hull finds its groove, offering a balanced helm and forgiving lee-cloth-friendly angles.

Interior Comfort & Variations

For a vessel of its vintage and size, the interior of the Grampian 23 is remarkably commodious. The designer utilized the generous beam to create a layout that typically includes a V-berth forward, a small enclosed or curtained head area, and two settee berths in the main cabin. One of the standout features of the Grampian 23 is its headroom; while many boats in this class require a permanent "hunch," the Grampian offers approximately 5 feet 4 inches of vertical space, which was often augmented in certain "pop-top" variations that allowed for standing headroom at anchor.

The interior finish is utilitarian but functional, featuring molded fiberglass liners and teak accents. The galley is usually minimal, consisting of a small sink and space for a portable stove, reflecting its intended use as a weekend cruiser rather than a long-distance voyager. In terms of sibling models, the Grampian 23 shares much of its DNA with the Grampian 26, which was essentially a scaled-up version of the same philosophy. Additionally, the Discovery 7.9, a later design produced after Grampian’s closure using similar molds, is often considered a spiritual successor to the 23-foot platform.

Known Issues & Buyer’s Checklist

Prospective buyers of a Grampian 23 should prioritize a thorough inspection of the deck and structural components, as these boats are now over fifty years old.

  • Deck Delamination: Like many balsa-cored decks of the 1970s, the Grampian 23 is susceptible to soft spots, particularly around the mast step and chainplates. Any "sponginess" underfoot indicates water intrusion into the core.
  • Swing Keel Mechanism: On centerboard models, the pivot bolt and the lifting cable are critical failure points. Inspect for rust, cable fraying, and "keel clunk," which suggests the pivot hole has become ovalized over time.
  • Chainplate Bulkheads: The chainplates are bolted through wooden bulkheads. It is common to find rot in these areas if the deck seals have not been maintained, which can compromise the structural integrity of the rig.
  • Window Seals: The original aluminum-framed windows are notorious for leaking, which can lead to interior woodwork damage and mold behind the cabin liners.

Community & Resources

The primary hub for technical data, original brochures, and owner support is the Grampian Owners Marina, an exhaustive repository of information for the entire Grampian line. This group maintains a registry of hulls and provides scanned manuals that are essential for restoration projects. In Canada, particularly around the Great Lakes, owners often gather through local yacht clubs where Grampians remain a staple of the "affordable cruising" fleet.

The Verdict

The Grampian 23 remains one of the most practical entry-level keelboats on the used market, offering a blend of rugged construction and surprising livability. While it won't win many windward-leeward races, its "overbuilt" nature makes it an excellent choice for a first-time owner looking to explore coastal waters or large lakes with peace of mind.

Pros

  • Exceptional interior volume and headroom for its length.
  • Sturdy, heavy-displacement feel that handles heavy air well.
  • Active owner community providing ample technical support.
  • Low purchase price makes it a highly accessible entry point into sailing.

Cons

  • Sluggish performance in light wind conditions.
  • Propensity for deck delamination and bulkhead rot if neglected.
  • The swing-keel version requires frequent maintenance of the lifting assembly.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Wing
Rudder
1x —
Ballast
1033 lbs (Lead)
Displacement
3200 lbs
Water Capacity
20 gal
Fuel Capacity
-

Dimensions

Length Overall (LOA)
23.25 ft
Waterline Length (LWL)
20.93 ft
Beam
8 ft
Draft
5.33 ft
Max Headroom
-
Air Draft
31 ft
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
23.7 ft
E (Main Foot)
9.3 ft
I (Foretriangle Height)
26.4 ft
J (Foretriangle Base)
9.9 ft
Forestay Length (est)
28.2 ft
Sail Area
241 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
17.75
Ballast / Displacement Ratio
32.28
Displacement / Length Ratio (D/L) Ratio
155.81
Comfort Ratio
14.33
Capsize Screening Formula
2.17
Hull Speed
6.13 kn