VANESSA: ORC Rating

GPH

615.2

OSN

599.4

LOA

14.57 m

Displacement

17532 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6607

Medium

0.878

High

1.0145

Triple Offshore

Low

0.8514

Medium

1.1009

High

1.2298

Boat Specifications

Dimensions

Length overall: 14.57 m
Beam: 4.15 m
Draft: 2.81 m
Displacement: 17532 kg
Crew weight: 500 kg
Wetted surface: 44.75 m²

Sails

Mainsail: 52.67 m²
Genoa: 81.45 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 158.61 m²

Design

Type: Swan 47 CB
Builder: Nautor
Designer: Sparkman&Stephens
Year built: 1975

Performance data

Polar CSV

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

6,43.1,4.848237,52,5.39,60,5.67,75,5.89,90,5.84,110,5.7,120,5.55,135,5,144.5,4.50796,150,4.24
8,41.1,5.61333,52,6.3,60,6.61,75,6.86,90,6.82,110,6.85,120,6.66,135,6.1,148,5.412429,150,5.3
10,41.2,6.233263,52,7.03,60,7.31,75,7.52,90,7.53,110,7.66,120,7.54,135,7.07,147.2,6.364754,150,6.18
12,42,6.728164,52,7.43,60,7.66,75,7.84,90,7.89,110,8.05,120,7.99,135,7.71,147.5,7.161562,150,6.97
14,41.2,6.91108,52,7.61,60,7.84,75,8.04,90,8.12,110,8.33,120,8.29,135,8.08,149,7.559784,150,7.49
16,40.7,7.004036,52,7.71,60,7.93,75,8.19,90,8.3,110,8.51,120,8.57,135,8.36,150,7.83,171,7.046757
20,40.5,7.10147,52,7.8,60,8.02,75,8.34,90,8.61,110,8.78,120,9.06,135,8.96,150,8.28,175,7.859909

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.39	5.67	5.89	5.84	5.7	5.55	5	4.24
8	6.3	6.61	6.86	6.82	6.85	6.66	6.1	5.3
10	7.03	7.31	7.52	7.53	7.66	7.54	7.07	6.18
12	7.43	7.66	7.84	7.89	8.05	7.99	7.71	6.97
14	7.61	7.84	8.04	8.12	8.33	8.29	8.08	7.49
16	7.71	7.93	8.19	8.3	8.51	8.57	8.36	7.83
20	7.8	8.02	8.34	8.61	8.78	9.06	8.96	8.28

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.54	144.5°	3.67
8	41.1°	4.23	148°	4.59
10	41.2°	4.69	147.2°	5.35
12	42°	5	147.5°	6.04
14	41.2°	5.2	149°	6.48
16	40.7°	5.31	171°	6.96
20	40.5°	5.4	175°	7.83

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°	5.39	6.30	7.03	7.43	7.61	7.71	7.80
60°	5.67	6.61	7.31	7.66	7.84	7.93	8.02
75°	5.89	6.86	7.52	7.84	8.04	8.19	8.34
90°	5.84	6.82	7.53	7.89	8.12	8.30	8.61
110°	5.70	6.85	7.66	8.05	8.33	8.51	8.78
120°	5.55	6.66	7.54	7.99	8.29	8.57	9.06
135°	5.00	6.10	7.07	7.71	8.08	8.36	8.96
150°	4.24	5.30	6.18	6.97	7.49	7.83	8.28