Chainsaw — ORC Rating

GPH

570.8

OSN

553.7

LOA

11.78 m

Displacement

5535 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7184

Medium

0.9686

High

1.1118

Triple Offshore

Low

0.9234

Medium

1.1833

High

1.3289

Boat Specifications

Dimensions

Length overall: 11.78 m
Beam: 3.71 m
Draft: 2.59 m
Displacement: 5535 kg
Crew weight: 747 kg
Wetted surface: 29.81 m²

Sails

Mainsail: 50.58 m²
Genoa: 37.34 m²
Spinnaker: 101.49 m²
Asymmetric spinnaker: 0 m²

Design

Type: sydney 38
Builder: Sydney Yachts
Designer: Murray Burns Dovel
Year built: 2001
Stability index: -1

Velocity Prediction

Polar CSV

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

4,42.1,3.895006,52,4.48,60,4.76,75,4.95,90,4.8,110,4.47,120,4.29,135,3.72,141.9,3.354788,150,3.05
6,42.1,5.364056,52,5.98,60,6.26,75,6.45,90,6.32,110,6.11,120,5.91,135,5.25,141.9,4.828861,150,4.39
8,39.8,6.26071,52,6.99,60,7.21,75,7.34,90,7.28,110,7.3,120,7.13,135,6.52,147.6,5.756057,150,5.61
10,37.8,6.745512,52,7.51,60,7.69,75,7.82,90,7.8,110,7.95,120,7.83,135,7.42,150,6.66,151.8,6.558467
12,36.7,6.934608,52,7.73,60,7.93,75,8.16,90,8.19,110,8.43,120,8.36,135,7.99,150,7.45,157.4,7.105641
14,36.5,7.078375,52,7.85,60,8.06,75,8.4,90,8.56,110,8.85,120,8.9,135,8.52,150,7.99,165.1,7.450516
16,36.2,7.15029,52,7.93,60,8.17,75,8.55,90,8.86,110,9.13,120,9.42,135,9.08,150,8.49,170.4,7.829646
20,36.1,7.24019,52,8.03,60,8.3,75,8.78,90,9.28,110,9.65,120,10.27,135,10.51,150,9.63,170,8.763132
24,37.2,7.256476,52,8.05,60,8.34,75,8.89,90,9.55,110,10.23,120,11,135,12.63,150,11.22,159.1,10.458096

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
4	4.48	4.76	4.95	4.8	4.47	4.29	3.72	3.05
6	5.98	6.26	6.45	6.32	6.11	5.91	5.25	4.39
8	6.99	7.21	7.34	7.28	7.3	7.13	6.52	5.61
10	7.51	7.69	7.82	7.8	7.95	7.83	7.42	6.66
12	7.73	7.93	8.16	8.19	8.43	8.36	7.99	7.45
14	7.85	8.06	8.4	8.56	8.85	8.9	8.52	7.99
16	7.93	8.17	8.55	8.86	9.13	9.42	9.08	8.49
20	8.03	8.3	8.78	9.28	9.65	10.27	10.51	9.63
24	8.05	8.34	8.89	9.55	10.23	11	12.63	11.22

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
4	42.1°	2.89	141.9°	2.64
6	42.1°	3.98	141.9°	3.8
8	39.8°	4.81	147.6°	4.86
10	37.8°	5.33	151.8°	5.78
12	36.7°	5.56	157.4°	6.56
14	36.5°	5.69	165.1°	7.2
16	36.2°	5.77	170.4°	7.72
20	36.1°	5.85	170°	8.63
24	37.2°	5.78	159.1°	9.77

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