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Cal 28 vs Cal 29

How do the Cal 28 and Cal 29 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.

Cal 28 Cal 28 Cal Yachts · 1963 Cal 29 Cal 29 Cal Yachts · 1971
Cal 28Cal 29
Length overall 28.0 ft8.53 m 29.0 ft8.84 m
Waterline length 22.5 ft6.86 m 24.0 ft7.32 m
Beam 9.0 ft2.74 m 9.3 ft2.82 m
Draft 4.5 ft1.37 m 4.5 ft1.37 m
Displacement 6,000 lb2,722 kg 8,000 lb3,629 kg
Ballast 2,200 lb998 kg 3,350 lb1,520 kg
Sail area 352 ft²32.7 m² 422 ft²39.2 m²
SA / Displacement 17.06 16.88
Displacement / Length 235 258
Comfort ratio 20.6 25.0
Capsize screening 1.98 1.85
Hull speed (kn) 6.4 6.6

Cal 28 vs Cal 29: the short version

Ratios are guidelines computed from published specs; condition, layout and gear matter as much as the numbers.