Design and Construction
The defining feature of the 35 DS is its split-level interior. The builder credits this arrangement with creating the space of a 40-foot yacht in a 35-foot hull.
The hull and deck are built in hand-laid fiberglass. Above the waterline, vacuum-adhered sandwich construction adds stiffness and insulation, and parts of the deck also use sandwich construction. The hull-to-deck joint and bulkheads are laminated on all sides.
The keel weighs about 2.6 tonnes and is made from cast iron, with a hardened lead bulb available as an option. It is glued and screwed to the hull using as many as ten 20 mm stainless steel bolts through flat-rolled steel. Massively laminated bottom floor sections redistribute the keel loads.
Writing in New Boat Preview, the reviewer said the hand-laid fiberglass, reinforced with vacuum-adhered sandwich construction for stiffness and insulation, marks the boat as built for offshore work. Inside, the 35 DS features Sirius’s hallmark mahogany joinery. The boat carries CE Category A (Ocean) certification for worldwide travel.
Rig, Sail Plan, and Keel Options
The Sirius 35 DS has a fractional sloop rig with two sets of spreaders. Standing rigging comprises a forestay, a shared backstay with a cascade system, and two upper, two middle, and two lower shrouds. The mast and boom are aluminium.
The standard mainsail measures 33.5 m², paired with a 23.2 m² self-tacking jib. The listed alternatives include:
- Genoa I: 42 m²
- Genoa II: 28 m²
- Spinnaker: 110 m²
- Furling gennaker: 86 m²
- Furling drifter: 55 m²
A performance rig with 23 percent more sail area is offered. The main boom carries two in-boom single-line reefing systems and a kicking strap. Together, the self-tacking jib and manageable standard sail plan make short-handed sailing plausible.
The boat is described as having keel choices ranging from deep fin to lifting; the pros list also identifies deep fin, shoal, twin, and lifting keels. The deep fin keel draws as much as 6 feet 10 inches, while the lifting keel retracts to 2 feet 9 inches.
Accommodation
The raised saloon provides true 360-degree views and plenty of natural light. By omitting a conventional aft cabin in favor of a sideways companionway and U-shaped seating, Sirius made the entire lower-level area more spacious than on the Sirius 38 DS. Headroom is 1.95 m or more.
Buyers could choose two, four, or six berths and one or two heads. In the two-berth version, the forecabin occupies all the space ahead of the main bulkhead. It includes a bed that is notably large for a boat of this size, along with a cosy double sofa with an extendable pull-out. A television and bookshelf sit opposite.
In the four-berth layout, the owner’s cabin is positioned amidships, half beneath the seating area. Its full-width double berth measures 2.04 m long and 1.60 m wide. The saloon table can also be specified to convert into a 1.40 m by 2.20 m double berth.
One unusual feature for a 35-footer is the dedicated workshop and storage area. Moving the saloon seat forward provides access, giving tools and spares an organized home.
Engine and Systems
Standard power is listed as a Volvo Penta D2-40, although the equipment list also specifies a Volvo-Diesel D2 50 rated at 37.5 kW (51 hp). That installation includes a double cooling system, seawater filter, and saildrive with a folding propeller.
Diesel capacity starts at 150 liters, with a tank display and oil filter. Water capacity begins at 220 liters, also with a display. The waste-water tank starts at 138 liters and includes both overboard discharge and dockside emptying.
A side-access walkway to the engine, reached through the saloon seat, makes routine servicing unusually convenient for a boat of this length.
Verdict
The Sirius 35 DS is a thoughtfully engineered deck saloon yacht that provides unusually generous accommodation and genuine ocean credentials within a 35-foot footprint. Its split-level arrangement, all-round visibility, and dedicated workshop are rare at this size. Multiple keel options also allow an owner to match the boat’s draft to the intended cruising grounds.
Hand-laid fiberglass and sandwich construction, a fully laminated structure, and CE Category A certification all underline the boat’s serious intent.
Pros
- Split-level interior provides 40-foot-class space in a 35-foot hull
- Raised saloon offers 360-degree views and abundant natural light
- Choice of deep fin, shoal, twin, or lifting keel
- Dedicated workshop and engine access through the saloon seat
- CE Category A (Ocean) certification
Cons
- The equipment list gives both D2-40 and D2-50 engine specifications
- Lifting-keel and shallow-draft versions trade some upwind performance for access
