CROWN 31
Specifications
Hull
| LOA | 31 ft |
| LWL | 25.6 ft |
| Beam | 9.84 ft |
| Draft | 5.25 ft |
| Displacement | 9,479 lb |
| Ballast | 2,203.9 lb |
| Hull speed1.34·√LWL | 6.8 kn |
About the CROWN 31
Similar to the INFERNO 31 and FINNFULF 31. See FINNGULF 31 for more details.
Designed by Håkan Södergren and built by Crown Marine (FIN) from 1983–1987, the Crown 31 is a fractional sloop with a displacement of 9479.0 lb and a comfort ratio of 25.6. While the exact hulls built count is unknown, owner reports highlight a robust build quality that requires vigilant maintenance of structural components.
- Best for:
- This boat suits coastal cruisers and those seeking a comfortable, stable platform with a 25.6 comfort ratio, though its 5.25 ft max draft may limit access to very shallow anchorages.
- Bluewater capability:
- With a low capsize ratio of 1.86 and a displacement of 9479.0 lb, the Crown 31 is structurally capable of offshore passages, provided critical structural integrity issues like deck core moisture and keel bonding are resolved.
- Comparables:
- Comparable to other 1980s European fractional sloops like the Beneteau First 303 or Oyster 31, the Crown 31 offers similar dimensions (31.0 ft LOA, 9.84 ft beam) but distinguishes itself with a heavier displacement (9479.0 lb) and higher ballast ratio for improved stability.
Performance
ORC Performance Data(1 certificate)
Measured performance data from ORC (Offshore Racing Congress) certificates.
Polar Diagram
Boat speed (kn) vs. true wind angle. Source: ORC
Racing Ratings
Triple Number
ORC Measured
Sail Areas (ORC)
Speed Table (kn)
| TWA \ TWS | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 20 | 24 |
|---|---|---|---|---|---|---|---|---|---|
| 52° | 3.6 | 4.8 | 5.6 | 6.0 | 6.3 | 6.4 | 6.4 | 6.5 | 6.5 |
| 60° | 3.8 | 5.0 | 5.8 | 6.2 | 6.4 | 6.5 | 6.6 | 6.7 | 6.7 |
| 75° | 4.0 | 5.2 | 6.0 | 6.4 | 6.6 | 6.8 | 6.9 | 7.0 | 7.0 |
| 90° | 4.0 | 5.3 | 6.1 | 6.5 | 6.7 | 6.9 | 7.0 | 7.3 | 7.4 |
| 110° | 4.0 | 5.3 | 6.2 | 6.7 | 6.9 | 7.2 | 7.3 | 7.6 | 7.7 |
| 120° | 3.8 | 5.2 | 6.1 | 6.6 | 6.9 | 7.2 | 7.5 | 8.0 | 8.3 |
| 135° | 3.4 | 4.7 | 5.7 | 6.3 | 6.8 | 7.1 | 7.4 | 8.1 | 9.1 |
| 150° | 2.8 | 4.0 | 5.0 | 5.8 | 6.4 | 6.8 | 7.1 | 7.8 | 8.6 |
| Beat VMG | 2.3 | 3.1 | 3.7 | 4.1 | 4.3 | 4.4 | 4.5 | 4.5 | 4.4 |
| Run VMG | 2.4 | 3.4 | 4.3 | 5.1 | 5.8 | 6.3 | 6.7 | 7.3 | 7.9 |
Pricing
We don't have market pricing data for the CROWN 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 31ft LOA. Actual costs vary by condition, usage, and local rates.
Articles & Reviews
Known Issues & Pre-Purchase Inspection
10 reported issues across 7 systems for the CROWN 31, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a CROWN 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 10 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
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