The search results confirm that the S&S 40 (1964), designed by Sparkman & Stephens (Design #1767), was built by multiple builders, including Far East Yachts and Teksoglass of Sweden. The production ran from 1964 to 1976. There were variations in transoms, deck layouts (coachroof or flush), and rigs. The Aquarius 40 is a later version built in Finland, using the same molds with a modified keel and rudder. Sparkman & Stephens were known for designing successful racers and offshore cruisers. The calculated ratios (SA/D 15.76, B/D 0.407, D/L 322.9) align with a heavy, stable, and capable offshore cruiser, possibly a moderate performer in light air but strong in a breeze.
I still need more specific information on:
- Sparkman & Stephens' specific goals or philosophy for this model (Design #1767), beyond general cruiser-racer descriptions.
- Anecdotal descriptions of the S&S 40's handling.
- Detailed interior layouts and accommodations.
- Owner perspectives, common problems, or forum discussions.
Let's refine the queries for these specific details.