MARINER 31 (SPISAK)
Specifications
Hull
| LOA | 31.33 ft |
| LWL | 29.04 ft |
| Beam | 9.71 ft |
| Draft | 5.58 ft/ 1.51 ft min |
| Displacement | 9,413.74 lb |
| Ballast | 2,778 lb |
| Hull speed1.34·√LWL | 7.2 kn |
Rig & Sails
| SA total | 478.99 sq ft |
About the MARINER 31 (SPISAK)
Sail area: -Spinnaker (optional): 50 m² / 538.2 ft² Available with an 18 hp diesel engine Available in a Fin keel version: Max Draft: 1.45 m / 4.75 ft Ballast: 1,100 kg / 2,425 lbs Sail area: 44.5 m² / 479 ft² Mast height above DWL: 13.85 m / 45.5 ft -Spinnaker (optional): 60 m² / 645.83 ft² EC Certificate: C (Standard centerboard) EC Certificate: B (Fin keel)
The Mariner 31 is a fractional sloop designed by Wojciech Spisak and built by Mariner yachts (PL) in 2012. With a displacement of 9413.74 lb and a ballast of 2778.0 lb, this Polish-built cruiser offers a comfortable ratio of 23.7, balancing stability with moderate performance.
- Best for:
- This boat suits coastal cruisers and those seeking a stable, comfortable passage maker, as indicated by its high comfort ratio and fractional rig configuration. It is well-suited for owners who prioritize ease of handling and liveaboard comfort over high-speed racing.
- Bluewater capability:
- With a capsize ratio of 1.84 and a displacement of 9413.74 lb, the Mariner 31 demonstrates good offshore stability, though potential keel smile issues require careful inspection for serious bluewater use.
- Comparables:
- Comparable boats include other European fractional sloop cruisers from the early 2010s with similar displacement and beam, such as the Beneteau First 31 or Hanse 311. These models share similar fractional rigging and target the same market of active coastal cruisers.
Performance
Pricing
We don't have market pricing data for the MARINER 31 (SPISAK) 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 31.33ft LOA. Actual costs vary by condition, usage, and local rates.
Articles & Reviews
Known Issues & Pre-Purchase Inspection
7 reported issues across 4 systems for the MARINER 31 (SPISAK), compiled from owner reports in sailing forums and owner-association material.
Unlock the full inspection report
Thinking of buying a MARINER 31 (SPISAK)? 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 7 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 MARINER 31 (SPISAK)?
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, Perkins, Westerbeke, Atomic 4 — is it one of these?
Already know your engine? Search all engines → to find its exact parts.
Used sails that fit the MARINER 31 (SPISAK)
Checking eBay for sails sized to this boat's rig…