KOYRE'-SPIRIT OF NERINA: ORC Rating

GPH

536.2

OSN

523.1

LOA

12.96 m

Displacement

7544 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.775

Medium

1.0183

High

1.1463

Triple Offshore

Low

0.9999

Medium

1.2513

High

1.3939

Boat Specifications

Dimensions

Length overall: 12.96 m
Beam: 3.91 m
Draft: 2.73 m
Displacement: 7544 kg
Crew weight: 910 kg
Wetted surface: 34.71 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
Stability index: 136

Performance data

Polar CSV

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

6,42.6,5.542747,52,6.2,60,6.54,75,6.82,90,7.03,110,6.97,120,6.69,135,5.94,143.3,5.425458,150,5.02
8,40.8,6.539012,52,7.34,60,7.6,75,7.77,90,7.97,110,8.01,120,7.87,135,7.39,145.7,6.609383,150,6.31
10,39.4,7.078766,52,7.83,60,8.03,75,8.2,90,8.3,110,8.54,120,8.46,135,8.17,149.6,7.454954,150,7.43
12,38.1,7.230584,52,8.01,60,8.23,75,8.5,90,8.59,110,9.04,120,9.04,135,8.74,150,8.13,152.1,7.999859
14,37.9,7.350294,52,8.1,60,8.34,75,8.73,90,8.97,110,9.45,120,9.65,135,9.41,150,8.57,150.5,8.53674
16,37,7.425164,52,8.16,60,8.4,75,8.88,90,9.31,110,9.81,120,10.27,135,10.2,147.1,9.373289,150,9.08
20,37,7.550378,52,8.32,60,8.6,75,9.01,90,9.75,110,10.38,120,11.25,135,11.91,143,11.482084,150,10.59

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.2	6.54	6.82	7.03	6.97	6.69	5.94	5.02
8	7.34	7.6	7.77	7.97	8.01	7.87	7.39	6.31
10	7.83	8.03	8.2	8.3	8.54	8.46	8.17	7.43
12	8.01	8.23	8.5	8.59	9.04	9.04	8.74	8.13
14	8.1	8.34	8.73	8.97	9.45	9.65	9.41	8.57
16	8.16	8.4	8.88	9.31	9.81	10.27	10.2	9.08
20	8.32	8.6	9.01	9.75	10.38	11.25	11.91	10.59

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	4.08	143.3°	4.35
8	40.8°	4.95	145.7°	5.46
10	39.4°	5.47	149.6°	6.43
12	38.1°	5.69	152.1°	7.07
14	37.9°	5.8	150.5°	7.43
16	37°	5.93	147.1°	7.87
20	37°	6.03	143°	9.17

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°	6.20	7.34	7.83	8.01	8.10	8.16	8.32
60°	6.54	7.60	8.03	8.23	8.34	8.40	8.60
75°	6.82	7.77	8.20	8.50	8.73	8.88	9.01
90°	7.03	7.97	8.30	8.59	8.97	9.31	9.75
110°	6.97	8.01	8.54	9.04	9.45	9.81	10.38
120°	6.69	7.87	8.46	9.04	9.65	10.27	11.25
135°	5.94	7.39	8.17	8.74	9.41	10.20	11.91
150°	5.02	6.31	7.43	8.13	8.57	9.08	10.59