HARMONY 34 (PONCIN)
Specifications
Hull
| LOA | 34.81 ft |
| LWL | 29.85 ft |
| Beam | 11.42 ft |
| Draft | 6.23 ft |
| Displacement | 10,803 lb |
| Ballast | 3,427.8 lb |
| Hull speed1.34·√LWL | 7.3 kn |
About the HARMONY 34 (PONCIN)
Hull length: 10.15 m / 33.25 ft Optional tandem keel: 1.5 m / 4.92 ft; 1,706 kg / 3,761 lbs Sail area above = Main + Genoa Displacement is "Light." Max engine power: 29 hp Available water tank: 400 l / 105 gal. Thanks to Nick Vass for his help supplying information and brochures.
Designed by Mortain & Mavrikios and built by Harmony Yachts (Groupe Poncin Yachts) from 2005–2011, the Harmony 34 is a fractional sloop with a displacement of 10803.0 lb and a comfort ratio of 20.79. While the exact hulls built count is unknown, the model is characterized by its 34.81 ft LOA and 11.42 ft beam, offering a balanced blend of performance and comfort.
- Best for:
- This boat suits coastal cruisers and short-handed sailors who prioritize a comfortable motion and modern fractional rig performance over heavy bluewater displacement. The high frequency of Flexofold folding propeller mentions (13) suggests owners value efficient motoring and reduced drag, making it ideal for those who mix sailing with engine use.
- Bluewater capability:
- With a displacement of 10803.0 lb and a capsize ratio of 2.07, the Harmony 34 is capable of coastal and nearshore passages but is not a heavy-displacement bluewater cruiser. Its fin keel and moderate D/L ratio of 181.33 indicate a design optimized for performance and ease of handling rather than extreme offshore endurance.
- Comparables:
- Comparable to other European-built 34-foot fractional sloops from the mid-2000s, such as the Beneteau First 34 or Dufour 34, due to similar dimensions and performance-oriented fractional rigs. It also shares market space with the Jeanneau Sun Odyssey 34.2, though the Harmony's specific Mortain & Mavrikios design offers a distinct hull form with a capsize ratio of 2.07.
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° | 3.5 | 4.7 | 5.7 | 6.3 | 6.6 | 6.8 | 6.9 | 6.9 | 6.8 |
| 60° | 3.8 | 5.1 | 6.1 | 6.6 | 6.9 | 7.0 | 7.2 | 7.2 | 7.2 |
| 75° | 4.2 | 5.5 | 6.4 | 6.9 | 7.2 | 7.4 | 7.5 | 7.7 | 7.7 |
| 90° | 4.2 | 5.6 | 6.5 | 7.0 | 7.4 | 7.7 | 7.9 | 8.1 | 8.3 |
| 110° | 3.9 | 5.4 | 6.5 | 7.1 | 7.5 | 7.9 | 8.2 | 8.7 | 9.0 |
| 120° | 3.8 | 5.2 | 6.3 | 7.0 | 7.4 | 7.8 | 8.2 | 9.0 | 9.6 |
| 135° | 3.3 | 4.7 | 5.8 | 6.6 | 7.1 | 7.5 | 7.9 | 8.7 | 9.8 |
| 150° | 2.7 | 3.9 | 5.0 | 5.9 | 6.6 | 7.1 | 7.4 | 8.1 | 8.8 |
| Beat VMG | 2.1 | 3.0 | 3.6 | 4.1 | 4.4 | 4.6 | 4.7 | 4.7 | 4.5 |
| Run VMG | 2.4 | 3.4 | 4.3 | 5.1 | 5.7 | 6.2 | 6.6 | 7.2 | 7.8 |
Pricing
We don't have market pricing data for the HARMONY 34 (PONCIN) 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 34.81ft LOA. Actual costs vary by condition, usage, and local rates.
Known Issues & Pre-Purchase Inspection
1 reported issues across 1 systems for the HARMONY 34 (PONCIN), compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a HARMONY 34 (PONCIN)? 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 1 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 HARMONY 34 (PONCIN)?
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, Volvo Penta, Flexofold, Nanni — is it one of these?
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the HARMONY 34 (PONCIN)
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