SPLIT DECISION — ORC Rating

GPH

609.9

OSN

594.4

LOA

12.055 m

Displacement

7346 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6795

Medium

0.9039

High

1.0326

Triple Offshore

Low

0.8729

Medium

1.1041

High

1.2214

Boat Specifications

Dimensions

Length overall: 12.055 m
Beam: 3.64 m
Draft: 2.19 m
Displacement: 7346 kg
Crew weight: 697 kg
Wetted surface: 31.1 m²

Sails

Mainsail: 35.48 m²
Genoa: 70.55 m²
Spinnaker: 124.18 m²
Asymmetric spinnaker: 115.65 m²

Design

Type: ISLANDER 40
Builder: ISLANDER
Designer: PETERSON
Year built: 1979

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.

6,42,5.01921,52,5.62,60,5.92,75,6.16,90,6.08,110,5.65,120,5.49,135,5.01,146,4.450944,150,4.26
8,41.2,5.900999,52,6.63,60,6.86,75,7,90,6.97,110,6.82,120,6.67,135,6.15,150,5.323169
10,40.5,6.457077,52,7.08,60,7.24,75,7.37,90,7.37,110,7.38,120,7.32,135,7.02,150,6.293118
12,39,6.626812,52,7.25,60,7.42,75,7.6,90,7.64,110,7.74,120,7.71,135,7.47,150,7.04,156.5,6.74983
14,38.2,6.706056,52,7.34,60,7.52,75,7.77,90,7.87,110,8.07,120,8.09,135,7.84,150,7.46,174,6.837456
16,37.9,6.754667,52,7.38,60,7.57,75,7.87,90,8.09,110,8.31,120,8.46,135,8.24,150,7.8,180,7.28
20,37.3,6.775839,52,7.4,60,7.61,75,7.98,90,8.37,110,8.65,120,8.97,135,9.05,150,8.55,180,7.96

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.62	5.92	6.16	6.08	5.65	5.49	5.01	4.26
8	6.63	6.86	7	6.97	6.82	6.67	6.15	5.32
10	7.08	7.24	7.37	7.37	7.38	7.32	7.02	6.29
12	7.25	7.42	7.6	7.64	7.74	7.71	7.47	7.04
14	7.34	7.52	7.77	7.87	8.07	8.09	7.84	7.46
16	7.38	7.57	7.87	8.09	8.31	8.46	8.24	7.8
20	7.4	7.61	7.98	8.37	8.65	8.97	9.05	8.55

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.73	146°	3.69
8	41.2°	4.44	150°	4.61
10	40.5°	4.91	150°	5.45
12	39°	5.15	156.5°	6.19
14	38.2°	5.27	174°	6.8
16	37.9°	5.33	180°	7.28
20	37.3°	5.39	180°	7.96

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