← All comparisons

K2 vs K4

How do the K2 and K4 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 K4 K4 Topcat · 2005
K2K4
Length overall 17.0 ft5.18 m 14.8 ft4.51 m
Waterline length
Beam 8.0 ft2.44 m 7.3 ft2.21 m
Draft
Displacement 342 lb155 kg 254 lb115 kg
Ballast
Sail area 171 ft²15.9 m² 118 ft²11.0 m²
SA / Displacement 55.95 47.07
Displacement / Length
Comfort ratio
Capsize screening 4.58 4.58
Hull speed (kn)

K2 vs K4: the short version

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