Jeanneau Sun Odyssey 39 I Information, Review, Specs

Jeanneau Sun Odyssey 39 I Drawing
Make
Jeanneau
Model
Sun Odyssey 39 I
Builder
Jeanneau
Designer
Marc Lombard
Number Built
Production Year(s)
2005 - 2010

The Jeanneau Sun Odyssey 39i, designed by Marc Lombard and introduced in 2006, represents a significant shift in Jeanneau’s production philosophy, specifically regarding the "i" designation which signifies an injection-molded deck. This Prism Process manufacturing technique was a departure from traditional hand-laid fiberglass, resulting in a lighter, stiffer deck with a finished surface on both sides, effectively eliminating the need for heavy, aesthetic interior liners. Built during a prolific era for the French manufacturer, the 39i was positioned as a high-performance cruiser capable of balancing the demands of charter fleets with the expectations of private owners. According to the Jeanneau official archives, the model was produced until approximately 2011, succeeded by the Sun Odyssey 409. The hull was also utilized for the Sun Odyssey 39DS (Deck Saloon), which featured a significantly taller coachroof and an entirely different interior volume while retaining the same underwater profile and performance characteristics.

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Sailing Performance & Handling

The Sun Odyssey 39i is frequently characterized by its agility and responsiveness, largely due to Marc Lombard’s focus on hull efficiency. Unlike many of its contemporaries that prioritize volume over speed, the 39i features a relatively high sail area-to-displacement ratio (approximately 19.8), which allows it to remain powered up in light to moderate air. An editorial review by Cruising World noted that the boat tracks exceptionally well and displays a "stiff" nature, resisting excessive heeling thanks to its wide beam and generous ballast.

The boat was offered in two primary configurations: the standard version and the "Performance" version. The Performance variant included a taller mast, a deeper 7'2" keel (compared to the standard 6'6" or shoal 4'11" drafts), a folding propeller, and upgraded sail cloth. On the water, the 39i is known for its twin-wheel configuration, which provides excellent visibility from the windward side and eases access to the stern. However, some owners have noted that the steering system can feel somewhat "numb" compared to a single-tiller or single-wheel setup due to the extra linkage involved in the twin-rudder-style helm layout (though it employs a single deep spade rudder).

Interior Comfort & Variations

The interior of the 39i is defined by its use of "Fine Teak" veneers and a layout that maximizes light through the numerous ports and hatches made possible by the injection-molded deck design. The model was offered in two distinct configurations: a two-cabin version and a three-cabin version. The two-cabin "Owner’s" layout is generally preferred for long-term cruising, as it features a much larger head with a separate shower stall and a massive storage "garage" accessible through the cockpit’s port locker.

In contrast, the three-cabin version sacrifices the dedicated shower stall and the large storage area to accommodate an additional double berth aft. As detailed in the original Jeanneau 39i brochure, the L-shaped galley is positioned to starboard and features a front-and-top-loading refrigerator, which was a notable upgrade for boats of this size at the time. Headroom is generous throughout, exceeding 6'3" in the main saloon, and the use of light-colored upholstery and the absence of a bulky fiberglass headliner (thanks to the "i" deck) creates a sense of volume that rivals 40-plus-foot vessels of the previous generation.

The Sun Odyssey 39i gained international recognition shortly after its launch, winning several "Boat of the Year" accolades for its balance of price and performance. It has been a staple in the YouTube sailing community, most notably featured on the channel "Sailing SV Delos" in their very early episodes before they transitioned to their larger Amel. The model is often cited in cruising literature as the quintessential "modern production cruiser," serving as a benchmark for comparing the sailing qualities of subsequent Jeanneau generations.

Known Issues & Buyer’s Checklist

Prospective buyers of a Sun Odyssey 39i should focus their survey on a few model-specific areas that have been highlighted by the owner community and technical forums.

  1. Rudder Bearing Wear: The 39i uses a large spade rudder. Over time, the self-aligning bearings can develop play, leading to a "knocking" sound when at anchor or a vibration while under power. Replacing these bearings is a standard maintenance task but requires dropping the rudder.
  2. Grid Bonding: Like many production boats of this era, the structural grid (the matrix of fiberglass ribs bonded to the hull) should be inspected for any signs of delamination or "tabbing" failure, particularly around the mast step and keel bolts, especially if the boat has a history of hard groundings.
  3. Halyard Wrap at the Furler: A common technical complaint involves the angle of the jib halyard as it exits the mast. If the halyard restrainer is not positioned correctly, a "halyard wrap" can occur when furling the genoa, which can damage the forestay.
  4. Teak Deck Maintenance: If the vessel is equipped with the optional teak side decks, check for thinning wood and failing caulk lines. Jeanneau used a vacuum-bonded process during this era, but 15+ years of UV exposure can still take a toll.

Community & Resources

The primary hub for technical data and owner support is the Jeanneau Owners Network, an independent organization that hosts a comprehensive "Jeanneau Wiki" featuring technical manuals, wiring diagrams, and DIY repair guides specifically for the 39i. Owners also frequently congregate under the Jeanneau Owners Association, which organizes rallies and provides a direct line of communication for parts sourcing that may no longer be available through the factory.

The Verdict

The Jeanneau Sun Odyssey 39i is a standout choice for sailors who want a modern, easy-to-handle cruiser that doesn't feel sluggish on the water. It successfully bridges the gap between the older, heavier designs of the 1990s and the ultra-wide, chined hulls of the current decade.

Pros:

  • Exceptional Light-Air Performance: The Marc Lombard hull is faster and more weatherly than most competitors in the "coastal cruiser" category.
  • Superior Deck Construction: The injection-molded deck reduces weight aloft and improves the interior aesthetic.
  • Ergonomic Cockpit: Twin wheels and a clear walk-through transom make it an excellent platform for both sailing and socializing.

Cons:

  • Limited Engine Access: While the front of the Yanmar engine is easy to reach, side access in the three-cabin version is quite restricted.
  • Light-Duty Hardware: Some factory-standard deck hardware, such as the plastic thru-hulls used in early models, may require upgrading to bronze or TruDesign for blue-water confidence.
  • Aft Cabin Ventilation: In the three-cabin version, the aft berths can become quite warm due to limited airflow through the small opening ports.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Bulb
Rudder
1x Spade
Ballast
5026 lbs
Displacement
16160 lbs
Water Capacity
94 gal
Fuel Capacity
34 gal

Dimensions

Length Overall (LOA)
38.91 ft
Waterline Length (LWL)
35.15 ft
Beam
12.73 ft
Draft
6.56 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
46.26 ft
E (Main Foot)
14.6 ft
I (Foretriangle Height)
48.06 ft
J (Foretriangle Base)
13.81 ft
Forestay Length (est)
50 ft
Sail Area
670 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
16.77
Ballast / Displacement Ratio
31.1
Displacement / Length Ratio (D/L) Ratio
166.12
Comfort Ratio
23.25
Capsize Screening Formula
2.01
Hull Speed
7.94 kn