The Southern Cross 31, designed by the venerable Thomas Gillmer and produced by C. E. Ryder in Bristol, Rhode Island, stands as a quintessential example of the "double-ender" philosophy that dominated the offshore cruising consciousness of the 1970s and 80s. Emerging from a design lineage that traces back to the seaworthy pilot boats of Colin Archer, the Southern Cross 31 was built to prioritize ultimate stability and survival in heavy seas over the flat-water speed favored by modern performance cruisers. Its high-volume hull, characterized by a traditional canoe stern and a full keel with a protected rudder, reflects Gillmer’s commitment to balanced handling and a sea-kindly motion.
Used Southern Cross 31 Sailboats for Sale

- Make
- Southern Cross
- Model
- 31
- Builder
- C. E. Ryder
- Designer
- Thomas Gillmer
- Number Built
- 150
- Production Year(s)
- 1975 - ??
Below are the most recent Southern Cross 31 sailboat listings.
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