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Aloha 27 vs Aloha 30

How do the Aloha 27 and Aloha 30 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.

Aloha 27 Aloha 27 Ouyang Boat Works · 1979 Aloha 30 Aloha 30 Ouyang Boat Works · 1986
Aloha 27Aloha 30
Length overall 26.5 ft8.08 m 30.0 ft9.14 m
Waterline length 22.5 ft6.86 m 26.0 ft7.92 m
Beam 9.4 ft2.87 m 10.0 ft3.05 m
Draft 4.3 ft1.32 m 5.8 ft1.75 m
Displacement 5,200 lb2,359 kg 6,800 lb3,084 kg
Ballast 2,000 lb907 kg 2,960 lb1,343 kg
Sail area 340 ft²31.6 m² 439 ft²40.8 m²
SA / Displacement 18.12 19.57
Displacement / Length 204 173
Comfort ratio 17.1 18.0
Capsize screening 2.17 2.11
Hull speed (kn) 6.4 6.8

Aloha 27 vs Aloha 30: the short version

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