OFFSKI: ORC Rating

GPH

628.1

OSN

607.6

LOA

12.64 m

Displacement

8845 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.693

Medium

0.9767

High

1.1495

Triple Offshore

Low

0.9057

Medium

1.2292

High

1.4024

Boat Specifications

Dimensions

Length overall: 12.64 m
Beam: 3.97 m
Draft: 2.11 m
Displacement: 8845 kg
Crew weight: 874 kg
Wetted surface: 37.14 m²

Sails

Mainsail: 34.56 m²
Genoa: 47.05 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 123.99 m²

Design

Type: OCEANIS 423
Builder: BENETEAU
Designer: FINOT
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.

6,44.4,4.39485,52,4.9,60,5.26,75,5.53,90,5.52,110,5.64,120,5.46,135,4.83,144.3,4.346843,150,4.07
8,42.7,5.279525,52,5.95,60,6.3,75,6.59,90,6.72,110,6.91,120,6.73,135,6.09,146.9,5.371731,150,5.2
10,42.1,6.010977,52,6.75,60,7.09,75,7.34,90,7.57,110,7.72,120,7.61,135,7.14,146.2,6.474249,150,6.22
12,41.3,6.602205,52,7.33,60,7.57,75,7.75,90,7.97,110,8.15,120,8.08,135,7.79,147.7,7.228529,150,7.05
14,40.2,6.91284,52,7.62,60,7.83,75,8.01,90,8.12,110,8.51,120,8.47,135,8.18,149.2,7.625502,150,7.56
16,39.6,7.021294,52,7.75,60,7.97,75,8.2,90,8.3,110,8.85,120,8.9,135,8.57,150,7.9,173,6.951818
20,39.7,7.044454,52,7.79,60,8.04,75,8.43,90,8.75,110,9.24,120,9.72,135,9.5,150,8.46,177.4,7.848079

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.9	5.26	5.53	5.52	5.64	5.46	4.83	4.07
8	5.95	6.3	6.59	6.72	6.91	6.73	6.09	5.2
10	6.75	7.09	7.34	7.57	7.72	7.61	7.14	6.22
12	7.33	7.57	7.75	7.97	8.15	8.08	7.79	7.05
14	7.62	7.83	8.01	8.12	8.51	8.47	8.18	7.56
16	7.75	7.97	8.2	8.3	8.85	8.9	8.57	7.9
20	7.79	8.04	8.43	8.75	9.24	9.72	9.5	8.46

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.4°	3.14	144.3°	3.53
8	42.7°	3.88	146.9°	4.5
10	42.1°	4.46	146.2°	5.38
12	41.3°	4.96	147.7°	6.11
14	40.2°	5.28	149.2°	6.55
16	39.6°	5.41	173°	6.9
20	39.7°	5.42	177.4°	7.84

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°	4.90	5.95	6.75	7.33	7.62	7.75	7.79
60°	5.26	6.30	7.09	7.57	7.83	7.97	8.04
75°	5.53	6.59	7.34	7.75	8.01	8.20	8.43
90°	5.52	6.72	7.57	7.97	8.12	8.30	8.75
110°	5.64	6.91	7.72	8.15	8.51	8.85	9.24
120°	5.46	6.73	7.61	8.08	8.47	8.90	9.72
135°	4.83	6.09	7.14	7.79	8.18	8.57	9.50
150°	4.07	5.20	6.22	7.05	7.56	7.90	8.46