MANDATE: ORC Rating

GPH

606.9

OSN

590.4

LOA

14.6 m

Displacement

15615 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6704

Medium

0.8987

High

1.0462

Triple Offshore

Low

0.8618

Medium

1.116

High

1.2502

Boat Specifications

Dimensions

Length overall: 14.6 m
Beam: 4.19 m
Draft: 2.4 m
Displacement: 15615 kg
Crew weight: 833 kg
Wetted surface: 43.45 m²

Sails

Mainsail: 46.68 m²
Genoa: 82.43 m²
Spinnaker: 151.36 m²
Asymmetric spinnaker: 145.47 m²

Design

Type: Swan 47
Builder: NAUTOR
Designer: S&S
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.

6,42.8,4.920067,52,5.47,60,5.76,75,5.98,90,5.93,110,5.68,120,5.52,135,5.01,145.5,4.489604,150,4.28
8,40.9,5.688933,52,6.41,60,6.73,75,6.98,90,6.94,110,6.86,120,6.66,135,6.12,150,5.369358
10,41.2,6.366168,52,7.14,60,7.39,75,7.57,90,7.59,110,7.66,120,7.54,135,7.11,150,6.28,152,6.161181
12,41.2,6.778175,52,7.49,60,7.7,75,7.87,90,7.91,110,8.04,120,7.99,135,7.74,150,7.13,153,6.969646
14,40.5,6.943659,52,7.64,60,7.86,75,8.06,90,8.14,110,8.33,120,8.31,135,8.1,150,7.71,161,7.255278
16,40.1,7.033402,52,7.73,60,7.94,75,8.2,90,8.32,110,8.54,120,8.61,135,8.41,150,8.06,180,7.46
20,40.1,7.111842,52,7.8,60,8.02,75,8.36,90,8.64,110,8.82,120,9.11,135,9.06,150,8.65,180,8.17

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.47	5.76	5.98	5.93	5.68	5.52	5.01	4.28
8	6.41	6.73	6.98	6.94	6.86	6.66	6.12	5.37
10	7.14	7.39	7.57	7.59	7.66	7.54	7.11	6.28
12	7.49	7.7	7.87	7.91	8.04	7.99	7.74	7.13
14	7.64	7.86	8.06	8.14	8.33	8.31	8.1	7.71
16	7.73	7.94	8.2	8.32	8.54	8.61	8.41	8.06
20	7.8	8.02	8.36	8.64	8.82	9.11	9.06	8.65

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.61	145.5°	3.7
8	40.9°	4.3	150°	4.65
10	41.2°	4.79	152°	5.44
12	41.2°	5.1	153°	6.21
14	40.5°	5.28	161°	6.86
16	40.1°	5.38	180°	7.46
20	40.1°	5.44	180°	8.17

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°	5.47	6.41	7.14	7.49	7.64	7.73	7.80
60°	5.76	6.73	7.39	7.70	7.86	7.94	8.02
75°	5.98	6.98	7.57	7.87	8.06	8.20	8.36
90°	5.93	6.94	7.59	7.91	8.14	8.32	8.64
110°	5.68	6.86	7.66	8.04	8.33	8.54	8.82
120°	5.52	6.66	7.54	7.99	8.31	8.61	9.11
135°	5.01	6.12	7.11	7.74	8.10	8.41	9.06
150°	4.28	5.37	6.28	7.13	7.71	8.06	8.65