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ISOLA 34

ISOLA 34

Politi Costruzioni Nautiche🇮🇹· Design: Fontana Maletto Navone
1981–2010
$1.4K – $3.7K est. annual maintenance
Performance RacermonoFractional (9/10) SloopFin

Specifications

Hull

LOA32.78 ft
LWL27.23 ft
Beam11.65 ft
Draft6.23 ft
Displacement8,378 lb
Ballast3,197 lb
Hull speed1.34·√LWL7.0 kn

About the ISOLA 34

Sailpages Buyer's Take

Designed by Fontana Maletto Navone and built by Politi Costruzioni Nautiche (IT) from 1981–2010, the Isola 34 is a robust fractional sloop with a displacement of 8378.0 lb and a comfort ratio of 17.03. While the exact hulls built count is unknown, the fleet is characterized by a heavy, stable platform with a capsize ratio of 2.3, favored for its traditional Italian build quality and spacious interior.

Best for:
This boat suits coastal cruisers and those seeking a comfortable, stable platform for shorthanded cruising, given its moderate sail area/displacement ratio of 24.71 and substantial ballast of 3197.0 lb. It is well-suited for owners who prioritize interior volume and ease of handling over high-performance racing metrics.
Bluewater capability:
With a displacement of 8378.0 lb and a low capsize ratio of 2.3, the Isola 34 is well-suited for offshore passages, provided critical structural integrity is verified. Its heavy displacement and fin keel design offer stability in heavy weather, though potential keel smile issues require careful inspection.
Comparables:
Comparable boats include the Nauticat 343 and the Beneteau 343, which share similar fractional sloop rigs and displacement ranges from the same era. These vessels offer similar interior layouts and cruising-oriented performance profiles, making them direct competitors in the 30-35 foot cruising market.

Performance

Comfort17.0
Capsize2.30
SA/Disp24.7
Disp/Len185
Bal/Disp38.2

ORC Performance Data(2 certificates)

Measured performance data from ORC (Offshore Racing Congress) certificates.

Polar Diagram

2468100°30°60°90°120°150°180°WIND
4kn6kn8kn10kn12kn14kn16kn20kn24knbeat VMGrun VMG

Boat speed (kn) vs. true wind angle. Source: ORC

Racing Ratings

GPH654.0 s/miOSN629.3

Triple Number

LowMedHighOffshore0.83971.03761.1330Inshore0.65760.85420.9422

ORC Measured

Displacement3859 kg (8509 lb)Wetted surface21.3 m² (229 ft²)Stability index-1.0

Sail Areas (ORC)

Main28.7 m² (309 ft²)Genoa37.7 m² (406 ft²)Spinnaker29.3 m² (315 ft²)Asymmetric41.0 m² (442 ft²)

Speed Table (kn)

TWA \ TWS468101214162024
52°4.15.46.26.56.76.86.86.96.8
60°4.45.66.36.76.87.07.07.17.1
75°4.65.86.46.87.07.27.37.47.5
90°4.45.76.46.87.17.37.57.88.0
110°4.35.76.57.07.37.78.08.48.8
120°4.15.56.46.97.37.78.18.99.6
135°3.54.96.06.67.07.47.88.810.6
150°2.94.25.36.16.67.07.37.99.0
Beat VMG2.63.54.34.74.84.95.04.94.8
Run VMG2.53.64.55.35.86.26.57.17.8

Pricing

We don't have market pricing data for the ISOLA 34 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 32.78ft LOA. Actual costs vary by condition, usage, and local rates.

$/ft/mo
Annual Maintenance
$1.4K – $3.7K
Hull, rigging, sails, engine service
Annual Docking
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Annual Insurance
N/A
No price data available

Known Issues & Pre-Purchase Inspection

10 reported issues across 7 systems for the ISOLA 34, compiled from owner reports in sailing forums and owner-association material.

4 critical2 major4 minor
Rigging2Deck2Rudder2Engine1Hull1Keel1Structural1

Unlock the full inspection report

Thinking of buying a ISOLA 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 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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