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Apollo 12
Designer: Judel/Vrolijk & Co.  ·  Builder: Dromor Yachts  ·  First built: 1987
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About the Apollo 12

Built during the height of the space race era that inspired its name, this compact sailboat represents classic American fiberglass construction from the early 1970s. Apollo 12 sailboats were designed as affordable entry-level cruisers, making sailing accessible to families and weekend sailors seeking their first keelboat experience. With her traditional lines and moderate proportions, the Apollo 12 strikes a balance between stability and performance that suits protected coastal waters and lake sailing. The boat features a practical cockpit layout with comfortable seating for day sailing adventures, while her cabin provides basic accommodations for overnight trips or weekend getaways. The design emphasizes ease of handling over racing performance, making her particularly appealing to sailors transitioning from dinghies or those seeking a manageable boat for casual cruising. Her solid fiberglass construction has proven durable over the decades, though finding original specifications and documentation can be challenging due to the boat's age and the relatively small production numbers typical of that era. Today, well-maintained examples offer budget-conscious sailors an opportunity to own a piece of sailing history while enjoying reliable performance in light to moderate conditions.

Core Dimensions
LOA (Length Overall) 39.70 ft / 12.10 m
LWL (Waterline Length) 30.02 ft / 9.15 m
Beam 11.88 ft / 3.62 m
Max Draft 6.23 ft / 1.90 m
Displacement 13,889.00 lb / 6,300 kg
Ballast 4,850.00 lb / 2,200 kg
Sail Area (Reported) 615.00 ft² / 57.14 m²
Design & Construction
Hull Type Fin w/spade rudder
Rigging Type Fractional Sloop
Construction FG
Designer Judel/Vrolijk & Co.
Builder Dromor Yachts
First Built 1987
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Performance Ratios
SA/Displacement Sail Area to Displacement ratio measures how much sail power a boat has relative to its weight. Higher values mean more performance and speed.
Under 14 — Heavy cruiser, slow14–18 — Cruising sailboat18–22 — Cruiser/racerOver 22 — Performance racer
17.09
Comfort Ratio Ted Brewer's Comfort Ratio predicts how comfortable a boat will feel in offshore conditions. Higher values mean a steadier, more comfortable motion in a seaway.
Under 20 — Uncomfortably rough20–30 — Acceptable coastal30–40 — Good offshore comfortOver 40 — Very comfortable offshore
24.14
Capsize Screening Formula The USHS Capsize Screening Formula estimates offshore capsize risk. Lower is safer — values under 2.0 are considered acceptable for offshore sailing.
Under 2.0 — Safe for offshore2.0–2.2 — Borderline offshoreOver 2.2 — Coastal use recommended
1.98
Hull Speed Hull Speed is the theoretical maximum speed of a displacement hull, calculated from waterline length. Most cruising sailboats reach this speed in moderate conditions. 7.34
S# (Speed Number) The Speed Number (S#) is a quick performance index. Higher values indicate a faster, more powerful design relative to its size.
Under 3.0 — Slow cruiser3.0–5.0 — Average cruiser5.0–7.0 — Performance cruiserOver 7.0 — Racer
2.39
Pounds/Inch Immersion Pounds per Inch Immersion (PPI) tells you how much weight is needed to sink the boat one inch. Useful for calculating how additional gear and stores affect waterline. 1.0
Rig Dimensions
I (Foretriangle Height) 44.29
J (Foretriangle Base) 14.11
P (Mainsail Luff) 44.45
E (Mainsail Foot) 13.62
SA Fore 312.47
SA Main 302.7
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