DUFOUR 34
Specifications
Hull
| LOA | 33.63 ft |
| LWL | 25.42 ft |
| Beam | 10.75 ft |
| Draft | 5.84 ft |
| Displacement | 11,023 lb |
| Ballast | 4,409.2 lb |
| Hull speed1.34·√LWL | 6.8 kn |
Rig & Sails
| Iforetriangle height | 43.6 ft |
| Jforetriangle base | 13.6 ft |
| Pmainsail luff | 38.2 ft |
| Emainsail foot | 11.5 ft |
| FLforestay | 13.6 ft |
| Mainsail | 533.7 sq ft |
| Jib (100%) | 296.5 sq ft |
| Spinnaker | 504 sq ft |
About the DUFOUR 34
Designed by Michael Dufour and built by Dufour (FRA), the Dufour 34 is a single-year production model from 1974 with an unknown total hull count. This classic masthead sloop offers a displacement of 11023.0 lb and a beam of 10.75 ft, representing an early entry in the builder's history.
- Best for:
- This boat suits coastal cruisers and weekend sailors seeking a manageable 33.63 ft LOA vessel with a comfortable 25.84 comfort ratio. Its moderate 16.73 SA/D ratio and fin keel configuration make it well-suited for protected waters and light offshore passages rather than heavy-weather racing.
- Bluewater capability:
- With a capsize ratio of 1.94 and a displacement/length ratio of 299.59, the Dufour 34 is primarily a coastal cruiser with limited bluewater capability. Its fin keel and relatively light displacement for its era suggest it is best kept to protected waters and short offshore passages.
- Comparables:
- Comparable boats from the same era include the O'Day 34 and Catalina 34, which share similar dimensions and roles as popular 1970s family cruisers. These vessels offer similar interior volumes and performance characteristics, making them direct competitors in the used market.
Performance
ORC Performance Data(91 certificates)
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° | 3.8 | 5.1 | 6.0 | 6.6 | 6.9 | 7.0 | 7.1 | 7.2 | 7.2 |
| 60° | 4.0 | 5.4 | 6.3 | 6.8 | 7.1 | 7.3 | 7.3 | 7.4 | 7.4 |
| 75° | 4.2 | 5.6 | 6.5 | 7.0 | 7.3 | 7.5 | 7.6 | 7.8 | 7.9 |
| 90° | 4.0 | 5.5 | 6.5 | 7.1 | 7.4 | 7.7 | 7.8 | 8.1 | 8.3 |
| 110° | 3.8 | 5.3 | 6.4 | 7.1 | 7.5 | 7.9 | 8.2 | 8.8 | 9.2 |
| 120° | 3.7 | 5.1 | 6.2 | 7.0 | 7.4 | 7.8 | 8.2 | 8.9 | 9.8 |
| 135° | 3.2 | 4.5 | 5.7 | 6.5 | 7.1 | 7.5 | 7.9 | 8.7 | 9.7 |
| 150° | 2.6 | 3.9 | 5.0 | 5.9 | 6.7 | 7.2 | 7.5 | 8.2 | 9.1 |
| Beat VMG | 2.4 | 3.3 | 4.0 | 4.6 | 4.9 | 5.0 | 5.0 | 5.1 | 5.0 |
| Run VMG | 2.3 | 3.3 | 4.3 | 5.1 | 5.9 | 6.5 | 7.0 | 7.7 | 8.3 |
Estimated Value
Low ConfidenceAsking price by model year
26 listings · boat years 1974–2007 · median $80,001
Each dot is one listing · hover for details · dashed red line marks the median · obvious data-entry outliers (top & bottom 2.5%) excluded.
Estimated Cost of Ownership
Based on 33.63ft LOA. Actual costs vary by condition, usage, and local rates.
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Articles & Reviews
Known Issues & Pre-Purchase Inspection
19 reported issues across 9 systems for the DUFOUR 34, compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a DUFOUR 34? 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 19 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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Which engine powers your DUFOUR 34?
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Used sails that fit the DUFOUR 34
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