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K2 vs K3

How do the K2 and K3 compare? Below, their dimensions, displacement, sail area and the standard design ratios side by side, followed by a data-driven summary.

K2 K2 Topcat · 1995 K3 K3 Topcat · 1999
K2K3
Length overall 17.0 ft5.18 m 16.1 ft4.91 m
Waterline length
Beam 8.0 ft2.44 m 7.3 ft2.21 m
Draft
Displacement 342 lb155 kg 304 lb138 kg
Ballast
Sail area 171 ft²15.9 m² 160 ft²14.9 m²
SA / Displacement 55.95 56.62
Displacement / Length
Comfort ratio
Capsize screening 4.58 4.31
Hull speed (kn)

K2 vs K3: the short version

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