DARK HORSE: ORC Rating

GPH

446

OSN

433.9

LOA

25.09 m

Displacement

41982 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.869

Medium

1.2053

High

1.4048

Triple Offshore

Low

1.1472

Medium

1.5334

High

1.7454

Boat Specifications

Dimensions

Length overall: 25.09 m
Beam: 6.06 m
Draft: 3.36 m
Displacement: 41982 kg
Crew weight: 1100 kg
Wetted surface: 106.33 m²

Sails

Mainsail: 183.36 m²
Genoa: 156.86 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 512.24 m²

Design

Type: Swan 80
Builder: Nautor Swan
Designer: Frers
Year built: 2009
Stability index: 144.4

Performance data

Polar CSV

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

6,46,6.607565,52,7.21,60,7.77,75,8.23,90,8.21,110,7.95,120,7.49,135,6.56,140.8,6.103663,150,5.46
8,43.8,7.89736,52,8.78,60,9.34,75,9.8,90,9.86,110,9.73,120,9.3,135,8.49,141.2,7.904145,150,7.12
10,43,8.668856,52,9.65,60,10.22,75,10.71,90,10.77,110,10.89,120,10.64,135,10.01,145.1,9.095876,150,8.61
12,41.8,9.014375,52,10.11,60,10.64,75,11.18,90,11.33,110,11.57,120,11.45,135,11.08,147.8,10.092258,150,9.86
14,41.4,9.278626,52,10.4,60,10.9,75,11.44,90,11.75,110,12.11,120,12.05,135,11.83,150,10.87,151,10.770395
16,41.2,9.476155,52,10.59,60,11.06,75,11.63,90,12.08,110,12.59,120,12.68,135,12.59,150,11.58,151.4,11.446691
20,41.2,9.688803,52,10.8,60,11.26,75,11.9,90,12.58,110,13.37,120,13.9,135,14.22,147.8,13.235749,150,12.94

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	7.21	7.77	8.23	8.21	7.95	7.49	6.56	5.46
8	8.78	9.34	9.8	9.86	9.73	9.3	8.49	7.12
10	9.65	10.22	10.71	10.77	10.89	10.64	10.01	8.61
12	10.11	10.64	11.18	11.33	11.57	11.45	11.08	9.86
14	10.4	10.9	11.44	11.75	12.11	12.05	11.83	10.87
16	10.59	11.06	11.63	12.08	12.59	12.68	12.59	11.58
20	10.8	11.26	11.9	12.58	13.37	13.9	14.22	12.94

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46°	4.59	140.8°	4.73
8	43.8°	5.7	141.2°	6.16
10	43°	6.34	145.1°	7.46
12	41.8°	6.72	147.8°	8.54
14	41.4°	6.96	151°	9.42
16	41.2°	7.13	151.4°	10.05
20	41.2°	7.29	147.8°	11.2

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°	7.21	8.78	9.65	10.11	10.40	10.59	10.80
60°	7.77	9.34	10.22	10.64	10.90	11.06	11.26
75°	8.23	9.80	10.71	11.18	11.44	11.63	11.90
90°	8.21	9.86	10.77	11.33	11.75	12.08	12.58
110°	7.95	9.73	10.89	11.57	12.11	12.59	13.37
120°	7.49	9.30	10.64	11.45	12.05	12.68	13.90
135°	6.56	8.49	10.01	11.08	11.83	12.59	14.22
150°	5.46	7.12	8.61	9.86	10.87	11.58	12.94