CHAWA: ORC Rating

GPH

598.3

OSN

581.7

LOA

12.33 m

Displacement

8689 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7602

Medium

1.0317

High

1.1934

Triple Offshore

Low

0.9828

Medium

1.2754

High

1.4257

Boat Specifications

Dimensions

Length overall: 12.33 m
Beam: 3.85 m
Draft: 2.32 m
Displacement: 8689 kg
Crew weight: 640 kg
Wetted surface: 34.99 m²

Sails

Mainsail: 50.98 m²
Genoa: 50.06 m²
Spinnaker: 104.82 m²
Asymmetric spinnaker: 101.65 m²

Design

Type: CENTURION 40 S
Builder: WAUQUIEZ
Designer: ED DUBOIS
Year built: 2002

Performance data

Polar CSV

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

6,42.6,4.97217,52,5.56,60,5.85,75,6.09,90,6.03,110,5.8,120,5.61,135,5.03,144.5,4.520243,150,4.25
8,41,5.843307,52,6.61,60,6.92,75,7.14,90,7.11,110,7.05,120,6.83,135,6.21,149.1,5.41917,150,5.37
10,40.8,6.552222,52,7.27,60,7.49,75,7.65,90,7.67,110,7.74,120,7.62,135,7.19,150,6.35,150.9,6.294547
12,39.9,6.843377,52,7.55,60,7.75,75,7.92,90,7.98,110,8.12,120,8.04,135,7.76,150,7.19,154.5,6.968871
14,39.1,6.945461,52,7.67,60,7.87,75,8.12,90,8.23,110,8.46,120,8.41,135,8.13,150,7.74,167,7.122551
16,38.6,6.986381,52,7.73,60,7.94,75,8.25,90,8.47,110,8.73,120,8.81,135,8.51,150,8.09,180,7.53
20,38.4,7.03081,52,7.76,60,7.99,75,8.39,90,8.86,110,9.11,120,9.5,135,9.4,150,8.84,180,8.25

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.56	5.85	6.09	6.03	5.8	5.61	5.03	4.25
8	6.61	6.92	7.14	7.11	7.05	6.83	6.21	5.37
10	7.27	7.49	7.65	7.67	7.74	7.62	7.19	6.35
12	7.55	7.75	7.92	7.98	8.12	8.04	7.76	7.19
14	7.67	7.87	8.12	8.23	8.46	8.41	8.13	7.74
16	7.73	7.94	8.25	8.47	8.73	8.81	8.51	8.09
20	7.76	7.99	8.39	8.86	9.11	9.5	9.4	8.84

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.66	144.5°	3.68
8	41°	4.41	149.1°	4.65
10	40.8°	4.96	150.9°	5.5
12	39.9°	5.25	154.5°	6.29
14	39.1°	5.39	167°	6.94
16	38.6°	5.46	180°	7.53
20	38.4°	5.51	180°	8.25

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°	5.56	6.61	7.27	7.55	7.67	7.73	7.76
60°	5.85	6.92	7.49	7.75	7.87	7.94	7.99
75°	6.09	7.14	7.65	7.92	8.12	8.25	8.39
90°	6.03	7.11	7.67	7.98	8.23	8.47	8.86
110°	5.80	7.05	7.74	8.12	8.46	8.73	9.11
120°	5.61	6.83	7.62	8.04	8.41	8.81	9.50
135°	5.03	6.21	7.19	7.76	8.13	8.51	9.40
150°	4.25	5.37	6.35	7.19	7.74	8.09	8.84