CETUS: ORC Rating

GPH

594.4

OSN

581.7

LOA

12.05 m

Displacement

6350 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6965

Medium

0.9179

High

1.0447

Triple Offshore

Low

0.901

Medium

1.1304

High

1.25

Boat Specifications

Dimensions

Length overall: 12.05 m
Beam: 3.97 m
Draft: 2.24 m
Displacement: 6350 kg
Crew weight: 600 kg
Wetted surface: 29.22 m²

Sails

Mainsail: 55.01 m²
Genoa: 49.34 m²
Spinnaker: 92.22 m²
Asymmetric spinnaker: 0 m²

Design

Type: X-402
Builder: X-YACHTS
Designer: NIELS JEPPESEN
Year built: 1984

Performance data

Polar CSV

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

6,42,5.234511,52,5.88,60,6.2,75,6.47,90,6.41,110,5.92,120,5.71,135,5.12,144,4.598173,150,4.29
8,41.2,6.140229,52,6.85,60,7.09,75,7.26,90,7.25,110,7.08,120,6.91,135,6.29,149,5.448178,150,5.39
10,39.8,6.52103,52,7.23,60,7.43,75,7.61,90,7.65,110,7.64,120,7.55,135,7.17,150,6.39,151,6.322748
12,39.4,6.716416,52,7.38,60,7.59,75,7.85,90,7.95,110,8.05,120,7.98,135,7.66,150,7.17,157,6.84407
14,39,6.794091,52,7.46,60,7.68,75,8.01,90,8.22,110,8.42,120,8.41,135,8.08,150,7.64,180,6.97
16,39,6.819826,52,7.51,60,7.74,75,8.12,90,8.44,110,8.68,120,8.81,135,8.52,150,8.04,180,7.49
20,39,6.922766,52,7.59,60,7.81,75,8.22,90,8.69,110,9.05,120,9.41,135,9.4,150,8.87,180,8.27

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.88	6.2	6.47	6.41	5.92	5.71	5.12	4.29
8	6.85	7.09	7.26	7.25	7.08	6.91	6.29	5.39
10	7.23	7.43	7.61	7.65	7.64	7.55	7.17	6.39
12	7.38	7.59	7.85	7.95	8.05	7.98	7.66	7.17
14	7.46	7.68	8.01	8.22	8.42	8.41	8.08	7.64
16	7.51	7.74	8.12	8.44	8.68	8.81	8.52	8.04
20	7.59	7.81	8.22	8.69	9.05	9.41	9.4	8.87

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.89	144°	3.72
8	41.2°	4.62	149°	4.67
10	39.8°	5.01	151°	5.53
12	39.4°	5.19	157°	6.3
14	39°	5.28	180°	6.97
16	39°	5.3	180°	7.49
20	39°	5.38	180°	8.27

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°	5.88	6.85	7.23	7.38	7.46	7.51	7.59
60°	6.20	7.09	7.43	7.59	7.68	7.74	7.81
75°	6.47	7.26	7.61	7.85	8.01	8.12	8.22
90°	6.41	7.25	7.65	7.95	8.22	8.44	8.69
110°	5.92	7.08	7.64	8.05	8.42	8.68	9.05
120°	5.71	6.91	7.55	7.98	8.41	8.81	9.41
135°	5.12	6.29	7.17	7.66	8.08	8.52	9.40
150°	4.29	5.39	6.39	7.17	7.64	8.04	8.87