Koa: ORC Rating

GPH

514.6

OSN

503.8

LOA

13.43 m

Displacement

6471 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8144

Medium

1.0527

High

1.2075

Triple Offshore

Low

1.0482

Medium

1.2987

High

1.4544

Boat Specifications

Dimensions

Length overall: 13.43 m
Beam: 3.66 m
Draft: 2.77 m
Displacement: 6471 kg
Crew weight: 800 kg
Wetted surface: 35.94 m²

Sails

Mainsail: 69.69 m²
Genoa: 46.49 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 217.24 m²

Design

Type: Kernan 44
Builder: Choate
Designer: Kernan
Year built: 2008
Stability index: 117

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,42.4,5.999009,52,6.71,60,7.07,75,7.33,90,7.18,110,7.04,120,6.9,135,6.17,142.4,5.654498,150,5.18
8,39.9,6.713027,52,7.59,60,7.95,75,8.26,90,8.24,110,8.15,120,8.24,135,7.86,140.8,7.36827,150,6.59
10,38.8,7.018778,52,7.96,60,8.28,75,8.64,90,8.81,110,8.65,120,8.88,135,8.8,146.6,8.133218,150,7.84
12,38.7,7.265222,52,8.16,60,8.46,75,8.87,90,9.22,110,9.06,120,9.38,135,9.65,150,8.78,151.8,8.646284
14,38.2,7.355029,52,8.29,60,8.58,75,9.05,90,9.51,110,9.58,120,9.86,135,10.48,149.6,9.63463,150,9.6
16,38.2,7.418654,52,8.36,60,8.67,75,9.19,90,9.75,110,10.15,120,10.33,135,11.19,147.8,10.765863,150,10.52
20,38.2,7.482278,52,8.38,60,8.73,75,9.37,90,10.06,110,11.03,120,11.23,135,12.56,147.4,13.258909,150,12.9

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.71	7.07	7.33	7.18	7.04	6.9	6.17	5.18
8	7.59	7.95	8.26	8.24	8.15	8.24	7.86	6.59
10	7.96	8.28	8.64	8.81	8.65	8.88	8.8	7.84
12	8.16	8.46	8.87	9.22	9.06	9.38	9.65	8.78
14	8.29	8.58	9.05	9.51	9.58	9.86	10.48	9.6
16	8.36	8.67	9.19	9.75	10.15	10.33	11.19	10.52
20	8.38	8.73	9.37	10.06	11.03	11.23	12.56	12.9

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	4.43	142.4°	4.48
8	39.9°	5.15	140.8°	5.71
10	38.8°	5.47	146.6°	6.79
12	38.7°	5.67	151.8°	7.62
14	38.2°	5.78	149.6°	8.31
16	38.2°	5.83	147.8°	9.11
20	38.2°	5.88	147.4°	11.17

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	6.71	7.59	7.96	8.16	8.29	8.36	8.38
60°	7.07	7.95	8.28	8.46	8.58	8.67	8.73
75°	7.33	8.26	8.64	8.87	9.05	9.19	9.37
90°	7.18	8.24	8.81	9.22	9.51	9.75	10.06
110°	7.04	8.15	8.65	9.06	9.58	10.15	11.03
120°	6.90	8.24	8.88	9.38	9.86	10.33	11.23
135°	6.17	7.86	8.80	9.65	10.48	11.19	12.56
150°	5.18	6.59	7.84	8.78	9.60	10.52	12.90