KOYRE'-SPIRIT OF NERINA: ORC Rating

GPH

538.2

OSN

525.4

LOA

12.96 m

Displacement

7545 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7718

Medium

1.0123

High

1.1368

Triple Offshore

Low

0.9968

Medium

1.247

High

1.3852

Boat Specifications

Dimensions

Length overall: 12.96 m
Beam: 3.91 m
Draft: 2.73 m
Displacement: 7545 kg
Crew weight: 910 kg
Wetted surface: 34.65 m²

Sails

Mainsail: 62.3 m²
Genoa: 49.85 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 185.65 m²

Design

Type: Swan 42
Builder: Nautor
Designer: Swan NY/Club Frers
Year built: 2006

Performance data

Polar CSV

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

6,42.4,5.538588,52,6.21,60,6.56,75,6.85,90,6.96,110,6.93,120,6.66,135,5.92,143,5.396705,150,4.98
8,40.5,6.509681,52,7.34,60,7.6,75,7.78,90,7.93,110,7.98,120,7.84,135,7.35,145,6.579975,150,6.23
10,39.4,7.065825,52,7.83,60,8.03,75,8.21,90,8.28,110,8.51,120,8.44,135,8.13,149,7.408122,150,7.33
12,38.1,7.217877,52,8.01,60,8.23,75,8.51,90,8.6,110,8.99,120,9.02,135,8.67,150,8.08,152,7.939316
14,37.9,7.324948,52,8.1,60,8.33,75,8.74,90,8.98,110,9.42,120,9.6,135,9.32,150,8.48,151.5,8.374894
16,37.3,7.404395,52,8.15,60,8.4,75,8.88,90,9.33,110,9.77,120,10.2,135,10.06,150,8.94,176,7.859144
20,37.5,7.537625,52,8.3,60,8.57,75,9.02,90,9.74,110,10.37,120,11.14,135,11.77,143.2,11.18977,150,10.35

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.21	6.56	6.85	6.96	6.93	6.66	5.92	4.98
8	7.34	7.6	7.78	7.93	7.98	7.84	7.35	6.23
10	7.83	8.03	8.21	8.28	8.51	8.44	8.13	7.33
12	8.01	8.23	8.51	8.6	8.99	9.02	8.67	8.08
14	8.1	8.33	8.74	8.98	9.42	9.6	9.32	8.48
16	8.15	8.4	8.88	9.33	9.77	10.2	10.06	8.94
20	8.3	8.57	9.02	9.74	10.37	11.14	11.77	10.35

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	4.09	143°	4.31
8	40.5°	4.95	145°	5.39
10	39.4°	5.46	149°	6.35
12	38.1°	5.68	152°	7.01
14	37.9°	5.78	151.5°	7.36
16	37.3°	5.89	176°	7.84
20	37.5°	5.98	143.2°	8.96

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°	6.21	7.34	7.83	8.01	8.10	8.15	8.30
60°	6.56	7.60	8.03	8.23	8.33	8.40	8.57
75°	6.85	7.78	8.21	8.51	8.74	8.88	9.02
90°	6.96	7.93	8.28	8.60	8.98	9.33	9.74
110°	6.93	7.98	8.51	8.99	9.42	9.77	10.37
120°	6.66	7.84	8.44	9.02	9.60	10.20	11.14
135°	5.92	7.35	8.13	8.67	9.32	10.06	11.77
150°	4.98	6.23	7.33	8.08	8.48	8.94	10.35