TESTACUORERACE: ORC Rating

GPH

458.4

OSN

448.1

LOA

15.22 m

Displacement

7586 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8865

Medium

1.1632

High

1.3666

Triple Offshore

Low

1.1505

Medium

1.4638

High

1.7037

Boat Specifications

Dimensions

Length overall: 15.22 m
Beam: 4.27 m
Draft: 3.04 m
Displacement: 7586 kg
Crew weight: 1125 kg
Wetted surface: 41.92 m²

Sails

Mainsail: 95.32 m²
Genoa: 66.59 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 247.4 m²

Design

Type: Cookson 50 cant
Builder: Cookson
Designer: Farr
Year built: 2004

Performance data

Polar CSV

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

6,43.5,6.617273,52,7.4,60,7.9,75,8.28,90,8.22,110,7.73,120,7.48,135,6.74,141.5,6.222782,150,5.62
8,41.2,7.495864,52,8.55,60,8.88,75,9.2,90,9.15,110,9.1,120,8.97,135,8.43,142.5,7.814929,150,7.16
10,40.5,8.206143,52,9.05,60,9.41,75,9.96,90,9.99,110,10.07,120,10.04,135,9.36,148.5,8.491273,150,8.37
12,39,8.376805,52,9.29,60,9.72,75,10.52,90,10.94,110,10.82,120,11.13,135,10.4,150,9.3,153,8.989833
14,38.1,8.48863,52,9.46,60,9.94,75,10.86,90,11.63,110,11.53,120,11.92,135,11.71,149.5,10.108757,150,10.05
16,37.1,8.600976,52,9.69,60,10.17,75,11.1,90,12.07,110,12.27,120,12.67,135,13.24,145.5,11.697238,150,11.13
20,37.1,8.726354,52,10,60,10.63,75,11.84,90,12.7,110,14.46,120,14.62,135,15.75,141.2,15.872446,150,14.28

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	7.4	7.9	8.28	8.22	7.73	7.48	6.74	5.62
8	8.55	8.88	9.2	9.15	9.1	8.97	8.43	7.16
10	9.05	9.41	9.96	9.99	10.07	10.04	9.36	8.37
12	9.29	9.72	10.52	10.94	10.82	11.13	10.4	9.3
14	9.46	9.94	10.86	11.63	11.53	11.92	11.71	10.05
16	9.69	10.17	11.1	12.07	12.27	12.67	13.24	11.13
20	10	10.63	11.84	12.7	14.46	14.62	15.75	14.28

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	4.8	141.5°	4.87
8	41.2°	5.64	142.5°	6.2
10	40.5°	6.24	148.5°	7.24
12	39°	6.51	153°	8.01
14	38.1°	6.68	149.5°	8.71
16	37.1°	6.86	145.5°	9.64
20	37.1°	6.96	141.2°	12.37

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°	7.40	8.55	9.05	9.29	9.46	9.69	10.00
60°	7.90	8.88	9.41	9.72	9.94	10.17	10.63
75°	8.28	9.20	9.96	10.52	10.86	11.10	11.84
90°	8.22	9.15	9.99	10.94	11.63	12.07	12.70
110°	7.73	9.10	10.07	10.82	11.53	12.27	14.46
120°	7.48	8.97	10.04	11.13	11.92	12.67	14.62
135°	6.74	8.43	9.36	10.40	11.71	13.24	15.75
150°	5.62	7.16	8.37	9.30	10.05	11.13	14.28