The Southern Cross 35 represents the pinnacle of the "heavy cruiser" ethos that dominated the American offshore sailing scene in the late 1970s and 1980s. Designed by the esteemed naval architect Thomas Gillmer—renowned for his work on the Allied Seawind and the Southern Cross 31—the 35 was a departure from its double-ended smaller siblings, featuring a traditional transom with a slight tumblehome. Built by C.E. Ryder in Bristol, Rhode Island, the vessel was marketed to sailors who prioritized structural integrity and sea-kindliness over light-air speed. Unlike many of its contemporaries that were built to a price point, the Southern Cross 35 was constructed to a standard, often utilizing high-end materials like Airex foam coring in the hull (above the waterline) and hand-laid fiberglass, a method frequently detailed in archives of the Sea Sprite Association, which serves as a technical repository for many C.E. Ryder builds.
Southern Cross 35 Information, Review, Specs

- Make
- Southern Cross
- Model
- 35
- Builder
- C. E. Ryder
- Designer
- Thomas Gillmer
- Number Built
- 95
- Production Year(s)
- 1978 - ??
Sailing Performance & Handling
The Southern Cross 35 is a quintessential "momentum" boat. With a displacement-to-length ratio that firmly places it in the heavy-displacement category, the hull is designed to punch through chop rather than bounce over it. The full keel with a protected rudder provides exceptional directional stability, allowing the boat to track straight for long periods with minimal helm correction—a trait highly prized by single-handed cruisers. While its sail area-to-displacement ratio is conservative, the cutter rig provides a versatile sail plan that can be easily reefed or adjusted for heavy weather.
In light air, the SC35 requires a large genoa or a cruising spinnaker to keep moving, but as the breeze freshens to 15 knots and above, the boat finds its stride. Owners frequently report that the vessel feels increasingly stable as conditions deteriorate, maintaining a comfortable motion when lighter performance cruisers are forced to head for port. The heavy displacement and deep-vee sections forward minimize pounding, ensuring that the crew remains rested during long offshore passages.
Interior Comfort & Variations
Designed for extended voyaging, the interior of the Southern Cross 35 is characterized by a "shipshape" aesthetic, featuring extensive use of teak, high-quality joinery, and a layout optimized for use at sea. The standard configuration typically includes a large V-berth forward, followed by a head to port and hanging lockers to starboard. The main salon utilizes a traditional arrangement of a U-shaped or L-shaped settee and a straight settee opposite, both of which serve as excellent sea berths when fitted with lee cloths.
The galley is almost always located at the base of the companionway, designed with deep sinks and high fiddles to remain functional while the boat is heeled. One of the unique aspects of the Southern Cross 35's production history is that C.E. Ryder offered the boat both as a factory-finished yacht and as a high-quality kit. This led to variations in interior finishes; while factory boats featured professional Rhode Island craftsmanship, kit-finished boats may vary significantly in wood choice and layout details. The hull's generous beam is carried well aft, providing more interior volume than the narrower Southern Cross 31 and allowing for a proper navigation station and a quarter berth or aft cabin in some variations.
Known Issues & Buyer’s Checklist
Prospective buyers of a Southern Cross 35 should focus their inspections on the specific construction methods used by C.E. Ryder during the 1980s.
- Deck Core Integrity: Like many boats of this era, the decks are balsa-cored. Hardware that was not properly re-bedded over the decades can lead to moisture intrusion and delamination. A thorough percussion test (hammering) or moisture meter reading is essential around the stanchion bases and chainplates.
- Chainplate Inspection: The chainplates are stainless steel and, given the boat’s age, should be inspected for crevice corrosion where they pass through the deck.
- Fuel and Water Tanks: The original tanks were often made of aluminum or stainless steel and may be reaching the end of their service life. Access for replacement can be difficult depending on the interior cabinetry.
- Hull Blisters: While C.E. Ryder used high-quality resins, some hulls from this period are prone to osmotic blistering. It is advisable to check if a barrier coat has been applied.
- Kit vs. Factory Finish: It is vital to determine if the boat was a factory-finished model or a owner-completed kit. Kit boats may lack the sophisticated electrical shielding or plumbing standards of the Ryder factory builds.
Community & Resources
The Southern Cross 35 benefits from a dedicated following of offshore enthusiasts. Technical data and historical context are maintained by the Sea Sprite Association, which, while primarily focused on the Carl Alberg designs, supports the broader C.E. Ryder community due to the shared builder heritage in Bristol. Thomas Gillmer’s design philosophy for the Southern Cross line is also a frequent subject of study in naval architecture literature focusing on traditional cruising yachts.
The Verdict
The Southern Cross 35 is a "sailor’s sailboat," built for those who find beauty in a stout hull and a secure cockpit. It is not a boat for the casual weekend racer, but it is an elite choice for the mariner planning a circumnavigation or a long-term life at sea.
Pros:
- Exceptional structural integrity and offshore "heft."
- Excellent tracking and heavy-weather handling characteristics.
- High-quality Rhode Island craftsmanship in factory-finished models.
- The cutter rig provides a versatile and safe sail plan for shorthanded crews.
Cons:
- Sluggish performance in light winds (under 10 knots).
- Large turning radius due to the full keel, making tight marina maneuvers challenging.
- Potential for variable interior quality in kit-finished examples.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (PVC Foam Core)
- Hull Type
- Monohull Sailboat
- Keel Type
- Fin
- Rudder
- 1x Skeg-Hung
- Ballast
- 5750 lbs (Lead)
- Displacement
- 17700 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Dimensions
- Length Overall (LOA)
- 35.25 ft
- Waterline Length (LWL)
- 28 ft
- Beam
- 11.42 ft
- Draft
- 4.92 ft
- Max Headroom
- -
- Air Draft
- -
Rig & Sails
- Rig Type
- Cutter
- P (Main Luff)
- 40 ft
- E (Main Foot)
- 12.3 ft
- I (Foretriangle Height)
- 45.3 ft
- J (Foretriangle Base)
- 16.8 ft
- Forestay Length (est)
- 48.31 ft
- Sail Area
- 627 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 14.77
- Ballast / Displacement Ratio
- 32.49
- Displacement / Length Ratio (D/L) Ratio
- 359.96
- Comfort Ratio
- 35.38
- Capsize Screening Formula
- 1.75
- Hull Speed
- 7.09 kn