KATIA: ORC Rating

GPH

622

OSN

604.9

LOA

12.189 m

Displacement

8201 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6565

Medium

0.8856

High

1.0179

Triple Offshore

Low

0.8451

Medium

1.088

High

1.2097

Boat Specifications

Dimensions

Length overall: 12.189 m
Beam: 3.83 m
Draft: 2.2 m
Displacement: 8201 kg
Crew weight: 730 kg
Wetted surface: 32.17 m²

Sails

Mainsail: 37.25 m²
Genoa: 59.56 m²
Spinnaker: 114.79 m²
Asymmetric spinnaker: 109.18 m²

Design

Type: Swan 39
Builder: Nautor
Designer: Holland
Year built: 1981

Performance data

Polar CSV

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

6,42.4,4.79379,52,5.36,60,5.65,75,5.89,90,5.83,110,5.58,120,5.41,135,4.91,146,4.366509,150,4.18
8,41.2,5.621898,52,6.33,60,6.62,75,6.82,90,6.8,110,6.75,120,6.57,135,6.03,150,5.253887
10,41.1,6.316655,52,6.95,60,7.14,75,7.27,90,7.3,110,7.37,120,7.28,135,6.94,150,6.19,151,6.128378
12,39.8,6.573094,52,7.21,60,7.38,75,7.53,90,7.58,110,7.73,120,7.68,135,7.44,150,6.97,155.5,6.703582
14,39,6.665415,52,7.31,60,7.5,75,7.72,90,7.81,110,8.04,120,8.03,135,7.79,150,7.43,172,6.786041
16,38.6,6.704879,52,7.37,60,7.56,75,7.85,90,8.02,110,8.32,120,8.37,135,8.14,150,7.76,180,7.25
20,38.6,6.73047,52,7.39,60,7.61,75,7.98,90,8.35,110,8.65,120,8.97,135,8.89,150,8.42,180,7.91

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.36	5.65	5.89	5.83	5.58	5.41	4.91	4.18
8	6.33	6.62	6.82	6.8	6.75	6.57	6.03	5.25
10	6.95	7.14	7.27	7.3	7.37	7.28	6.94	6.19
12	7.21	7.38	7.53	7.58	7.73	7.68	7.44	6.97
14	7.31	7.5	7.72	7.81	8.04	8.03	7.79	7.43
16	7.37	7.56	7.85	8.02	8.32	8.37	8.14	7.76
20	7.39	7.61	7.98	8.35	8.65	8.97	8.89	8.42

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.54	146°	3.62
8	41.2°	4.23	150°	4.55
10	41.1°	4.76	151°	5.36
12	39.8°	5.05	155.5°	6.1
14	39°	5.18	172°	6.72
16	38.6°	5.24	180°	7.25
20	38.6°	5.26	180°	7.91

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°	5.36	6.33	6.95	7.21	7.31	7.37	7.39
60°	5.65	6.62	7.14	7.38	7.50	7.56	7.61
75°	5.89	6.82	7.27	7.53	7.72	7.85	7.98
90°	5.83	6.80	7.30	7.58	7.81	8.02	8.35
110°	5.58	6.75	7.37	7.73	8.04	8.32	8.65
120°	5.41	6.57	7.28	7.68	8.03	8.37	8.97
135°	4.91	6.03	6.94	7.44	7.79	8.14	8.89
150°	4.18	5.25	6.19	6.97	7.43	7.76	8.42