The search results provide good information for most sections.
Summary of findings:
- Designer: E. G. Van de Stadt (Ericus Gerhardus van de Stadt).
- Builder: Wibo Yachts (G. van Wijk Shipyard).
- Production: Introduced in 1970, production started 1972 (JSON), around 200 built. Production continued until at least 1978.
- Hull Material: Steel, multi-chine, 6].
- Keel Type: Fin keel.
- Rudder Type: Spade rudder. E. G. Van de Stadt was known for using his hydrodynamic knowledge to design a spade rudder.
- Designer Philosophy: E. G. Van de Stadt's design principles include speed, comfort, safety, and quality, and he was an innovator in yacht design, open to new building methods and materials.
- Builder Ethos: G. van Wijk Shipyard (Wibo Yachts) was known for robust steel sailing yachts, multi-chine construction, and a focus on the home completion market.
- Variations: The search didn't explicitly mention MkI/MkII variations for the Wibo 930, but one forum post mentions "Wibo 930/945" and questions differences, specifically the transom ("spiegel"). This suggests potential minor variations or closely related models. No specific "tall rig" or "standard rig" information.
- Sailing Performance/Handling:
- Ratios calculated: SA/D = 14.05, B/D = 0.333, D/L = 362.05.
- Anecdotal evidence suggests it's a "relatively heavy steel multi-chine" boat. Owners praise its "solidly built steel ship" nature. Likely sails well in stronger winds due to its displacement, but might be slower in light airs (supported by SA/D).
- One forum post asks "how does a wibo 930 sail at 2-3bft?" suggesting a potential concern for light wind performance.
- Accommodations/Layout:
- Max headroom: 6.17 ft.
- Equipped with 6 berths.
- Interior often made of mahogany, a durable hardwood.
- Typical layout likely includes a salon and forepeak. One ad mentions a "nice and characteristic wood-burning stove built in".
- Owner's Perspectives:
- Owners appreciate the "rugged construction and often well-proven designs".
- "Solidly built steel ship".
- Common issues: "When the keel leaks there will always be water" suggests potential for keel leaks as a known issue. (This needs to be phrased carefully as a potential issue, not a universal one).
- Forums exist where owners share knowledge, 2, 4, 5, 7, 8, 25, 26].
Now I can start writing the article, integrating these findings.