GRAMPIAN 28
Specifications
Hull
| LOA | 28 ft |
| LWL | 24.5 ft |
| Beam | 9.5 ft |
| Draft | 4.83 ft |
| Shoal Draft | 3.75 ft(1.14 m) |
| Displacement | 6,900 lb |
| Ballast | 3,060.2 lb |
| Hull speed1.34·√LWL | 6.6 kn |
Rig & Sails
| Iforetriangle height | 36.5 ft |
| Jforetriangle base | 12 ft |
| Pmainsail luff | 31.5 ft |
| Emainsail foot | 10.5 ft |
| FLforestay | 12 ft |
| Mainsail | 397.6 sq ft |
| Jib (100%) | 219 sq ft |
| Spinnaker | 372.3 sq ft |
Engine
| Commonly | Volvo Penta, Yanmar, Isuzu |
About the GRAMPIAN 28
The later INTREPID 28, by Cape Dory, was based on this same design/tooling. Photo courtesy Adam Hunt.
Designed by Rolf van der Sleen and built by Grampian Marine Ltd. (CAN), the Grampian 28 is a compact, heavy-displacement cruiser with a production run of 107 hulls completed in 1975. Its substantial displacement of 6900.0 lb and high D/L ratio of 209.46 indicate a vessel built for stability and comfort rather than speed.
- Best for:
- This boat suits coastal cruisers and weekend sailors who prioritize a solid, stable ride and low maintenance over high-performance sailing. Its manageable size and robust construction make it accessible for single-handers or couples seeking a no-nonsense cruising experience.
- Bluewater capability:
- With a low capsize ratio of 2.0 and a comfort ratio of 20.81, the Grampian 28 is well-suited for protected coastal and bay cruising but is generally considered too small and lightly equipped for extended bluewater passages without significant modifications.
- Comparables:
- Comparable boats include the Cal 2-28 and O'Day 28, which share similar dimensions and target the same market of affordable, sturdy coastal cruisers from the mid-1970s. These vessels are comparable due to their similar beam, displacement characteristics, and reputation for safe, comfortable handling.
Performance
Estimated Value
Limited DataEstimated Cost of Ownership
Based on 28ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
13 reported issues across 8 systems for the GRAMPIAN 28, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a GRAMPIAN 28? This is an in-depth report on the faults this model is known for — so you know exactly what to check when you walk the boat. For the price of a coffee.
- ✓ All 13 specific issues — severity, symptoms & fixes
- ✓ Model-specific pre-purchase inspection checklist
- ✓ Downloadable PDF to take to your surveyor — yours to keep
One-time $2.99 · secure checkout by Stripe · instant access · 30 days online, PDF yours to keep
Similar Sailboats
Which engine powers your GRAMPIAN 28?
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Brands sometimes mentioned for this model: Volvo Penta, Yanmar, Isuzu — is it one of these?
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Used sails that fit the GRAMPIAN 28
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