Northern Light — ORC Rating

GPH

623

OSN

603.3

LOA

13.86 m

Displacement

15806 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7067

Medium

0.9799

High

1.1803

Triple Offshore

Low

0.9182

Medium

1.2328

High

1.4235

Boat Specifications

Dimensions

Length overall: 13.86 m
Beam: 4.35 m
Draft: 2.18 m
Displacement: 15806 kg
Crew weight: 875 kg
Wetted surface: 47.5 m²

Sails

Mainsail: 53.43 m²
Genoa: 54.96 m²
Spinnaker: 145.33 m²
Asymmetric spinnaker: 140.66 m²

Design

Type: Concord 47x2.15
Builder: Alumarine
Designer: Koopmans
Year built: 1999

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.

6,44.6,4.466129,52,4.97,60,5.32,75,5.59,90,5.6,110,5.68,120,5.52,135,4.98,145.3,4.451775,150,4.22
8,42.7,5.293132,52,5.92,60,6.27,75,6.55,90,6.74,110,6.89,120,6.69,135,6.13,149.7,5.350966,150,5.34
10,42,5.93424,52,6.69,60,7.07,75,7.36,90,7.65,110,7.77,120,7.64,135,7.12,150,6.28,151.9,6.17825
12,42.4,6.581305,52,7.33,60,7.62,75,7.83,90,8.09,110,8.22,120,8.14,135,7.83,150,7.14,152.8,6.982107
14,42.3,7.044052,52,7.69,60,7.92,75,8.11,90,8.29,110,8.55,120,8.49,135,8.24,150,7.8,159.4,7.371326
16,41.6,7.181083,52,7.86,60,8.09,75,8.31,90,8.41,110,8.84,120,8.83,135,8.57,150,8.19,180,7.52
20,41.4,7.278922,52,7.95,60,8.2,75,8.57,90,8.78,110,9.21,120,9.46,135,9.28,150,8.82,180,8.32

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.97	5.32	5.59	5.6	5.68	5.52	4.98	4.22
8	5.92	6.27	6.55	6.74	6.89	6.69	6.13	5.34
10	6.69	7.07	7.36	7.65	7.77	7.64	7.12	6.28
12	7.33	7.62	7.83	8.09	8.22	8.14	7.83	7.14
14	7.69	7.92	8.11	8.29	8.55	8.49	8.24	7.8
16	7.86	8.09	8.31	8.41	8.84	8.83	8.57	8.19
20	7.95	8.2	8.57	8.78	9.21	9.46	9.28	8.82

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.6°	3.18	145.3°	3.66
8	42.7°	3.89	149.7°	4.62
10	42°	4.41	151.9°	5.45
12	42.4°	4.86	152.8°	6.21
14	42.3°	5.21	159.4°	6.9
16	41.6°	5.37	180°	7.52
20	41.4°	5.46	180°	8.32

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