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Geary 18 vs Y flyer

How do the Geary 18 and Y flyer compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.

Geary 18 Geary 18 Blanchard Boat Company · 1928 Y flyer Y flyer Jack A. Helms Co. · 1938
Geary 18Y flyer
Length overall 18.2 ft5.54 m 18.2 ft5.54 m
Waterline length 14.5 ft4.42 m
Beam 5.5 ft1.66 m 5.7 ft1.73 m
Draft 3.8 ft1.14 m 4.0 ft1.22 m
Displacement 525 lb238 kg 500 lb227 kg
Ballast
Sail area 200 ft²18.6 m² 161 ft²15.0 m²
SA / Displacement 49.17 40.89
Displacement / Length 73
Comfort ratio 4.9
Capsize screening 2.71 2.86
Hull speed (kn) 5.1

Geary 18 vs Y flyer: the short version

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