Design and Construction
The hull is an infused sandwich with a balsa core and a protective barrier coat to stave off blistering, while the deck is injection molded using Jeanneau's proprietary Prisma process and also includes a balsa core to produce an exceptionally light structure while maintaining necessary strength. The topsides show full-length chines roughly 40 centimeters above the waterline, near-vertical surfaces above that, and a broad chamfer where they meet the deck; the bow section is visibly wide and the maximum beam of 4.5 meters is carried all the way aft to the transom. Inside, interior weight has been kept low and within 1.5 meters of the keel, with storage placed close to the centerline and fabric panels on bulkheads and counter tops used to deaden noise. The forward cabin benefits from sound insulation, and removable inspection hatches in the floorboards carry stainless steel pins to wedge tightly and prevent rattling.
Rig and Handling
The walk-around deck concept permits a crew member to exit the cockpit and reach the foredeck without stepping over coamings, achieved by sloping the side decks from midships down to a transom level with the cockpit sole. This sloping arrangement provides the security of a bulwark when leaving the cockpit and lowers deck level to reduce boom-strike risk, though large deck drains manage water collecting in the enclosed aft quarters when sailing to windward. The rig itself uses a double-spreader aluminum mast with stainless steel 1x19 wire and a double backstay; lower D1 and cap shrouds terminate at separate chainplates to open an unobstructed path forward on the wide side decks. A Code 0 flies from a composite sprit that also moves the anchor forward of the plumb bow. In testing, the boat pointed up to 35 degrees and settled at 8.1 knots in 15 knots of breeze at 60 degrees with the in-mast furling main, while the Code 0 rolled out produced 9.1 knots with a finger on the helm. Twin rudders with self-aligning bearings and a 57-horsepower Yanmar standard (80 available) give responsive, easy handling despite the size.
Accommodations
The 490 feels remarkably spacious throughout, with clever layouts offered in two to five cabins and two or three heads; the saloon, galley, and nav desk stay constant while only staterooms change. The standard owner's forward cabin is a true parental suite with a 2.0 by 1.6 meter island berth, copious storage, hanging lockers, private access to a separate shower and heads, and centrally located bookshelves with an integrated television, all bathed in light and well-ventilated. Aft, two double cabins are roomy with plenty of light. The spacious saloon seats six at its table, with a pull-out bench securely stowed below while sailing, and the fully equipped galley wraps around the user with a huge fridge accessed from top and side. The cockpit is well-protected and secure under way, yet transforms into a lounge when the collapsible coamings lift out to form sun pads and a filler cushion bridges to the offset drop-leaf table.
Known Issues
A test sailor noted the fixed wooden brace on the cockpit sole would be better as a retractable unit to avoid tripping when not in use. On another trial the boat could not sheet the boom onto the centerline because of a small rigging issue, a reminder that rig tuning deserves attention.
Refits and Ownership
Owners choosing the 490 can specify in-mast furling, electric winches, a performance package with tri-radial Mylar sails and adjustable high-modulus backstay, and 360-Degree Joystick Docking kept available by the sub-100-horsepower engine choice. The forward sail locker housed in the bow can stow an inflatable dinghy and extra sails, while a swim platform with built-in liferaft stowage aft and SEANAPPS technology round out the modern cruising package.
The Verdict
The Sun Odyssey 490 is a thoughtfully engineered flagship that reworks the cruising deck around safe, coaming-free movement and a convertible cockpit without sacrificing a roomy, light-filled interior. Its handling under sail and power is forgiving for the size, and the build uses modern infusion and molding to stay light yet stiff.
Pros
- Walk-around side decks with no coaming steps improve foredeck access and safety
- Spacious flagship interior with true owner's suite and constant saloon/galley across layouts
- Infused balsa sandwich hull with barrier coat and Prisma deck for light, strong structure
- Twin rudders and retractable bow thruster make a 49-footer easy to handle
Cons
- Fixed cockpit sole brace is a tripping hazard when lounging
- Small rigging issues can prevent centerline boom sheeting until corrected
