CLASSIC 31
Specifications
Hull
| LOA | 30.92 ft |
| LWL | 22.3 ft |
| Beam | 8.67 ft |
| Draft | 4.5 ft |
| Displacement | 9,600 lb |
| Hull speed1.34·√LWL | 6.3 kn |
Rig & Sails
| Iforetriangle height | 36.85 ft |
| Jforetriangle base | 13.33 ft |
| Pmainsail luff | 33 ft |
| Emainsail foot | 11.5 ft |
| FLforestay | 13.3 ft |
| Mainsail | 450.5 sq ft |
| Jib (100%) | 245.6 sq ft |
| Spinnaker | 417.5 sq ft |
About the CLASSIC 31
Available as a sloop or cutter w/bowsprit, and in various stages of contruction. Out of production for number of years. An updated version was re-introduced in the mid-1970's from Classic Yachts of Canada.
The Classic 31 is a rare, single-year production vessel designed by Peter Van Dine and built by Grampian Marine Ltd. in 1963. With a build count of unknown quantity, this 30.92 ft cutter-rigged sloop represents a unique slice of early 1960s Canadian boatbuilding history.
- Best for:
- This boat suits experienced coastal cruisers and traditionalists who appreciate a heavy-displacement, fin-keel design with a comfort ratio of 33.56. It is well-matched for owners seeking a classic aesthetic with modern engine options, as the fleet shows diverse powertrain upgrades including Yamaha and Yanmar.
- Bluewater capability:
- With a displacement of 9600.0 lb and a low capsize ratio of 1.63, the Classic 31 possesses the mass and stability characteristics suitable for offshore passages. However, its age and single-year production mean structural integrity, particularly regarding the keel attachment, requires rigorous verification before bluewater use.
- Comparables:
- Comparable vessels include other early 1960s Canadian-built cruisers with similar displacement (9600.0 lb) and fin-keel configurations. Its cutter rig and dimensions place it in the same category as contemporary designs from builders like Bristol Yachts or early O'Day models that prioritize seakindliness over speed.
Direct variant of the CLASSIC 31
Near-identical models — same hull, builder and designer, re-badged or lightly changed. Specs and owner-reported issues are typically shared across the group, so a sister model's page may carry detail this one doesn't.
Performance
Pricing
We don't have market pricing data for the CLASSIC 31 yet. If you own one, help other buyers — what did you pay for it? Reports build a community price estimate over time.
Estimated Cost of Ownership
Based on 30.92ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
6 reported issues across 4 systems for the CLASSIC 31, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a CLASSIC 31? 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 6 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 CLASSIC 31?
We haven't confirmed the engine for this model yet. If you own or know one, tell us — as owners report in, we build an accurate picture over time.
Brands sometimes mentioned for this model: Yanmar — is it one of these?
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the CLASSIC 31
Checking eBay for sails sized to this boat's rig…