DRAP — ORC Rating | RegattaPages

GPH

678.8

OSN

654.8

LOA

11.99 m

Displacement

9652 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5907

Medium

0.8163

High

0.959

Triple Offshore

Low

0.7586

Medium

1.0046

High

1.1344

Boat Specifications

Dimensions

Length overall: 11.99 m
Beam: 3.74 m
Draft: 2.06 m
Displacement: 9652 kg
Crew weight: 480 kg
Wetted surface: 31.62 m²

Sails

Mainsail: 33.43 m²
Genoa: 50.49 m²
Spinnaker: 102.66 m²
Asymmetric spinnaker: 0 m²

Design

Type: NORTH WIND 40
Builder: NORTH WIND
Designer: PRIMROSE ANGUS
Year built: 1979
Stability index: 129.2

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.

6,44.2,4.296212,52,4.75,60,5.02,75,5.18,90,5.07,110,5.06,120,4.93,135,4.48,146.6,3.964794,150,3.82
8,42.1,5.081028,52,5.65,60,5.91,75,6.08,90,6,110,6.15,120,6.03,135,5.56,150,4.89,150.2,4.886113
10,41.2,5.66177,52,6.28,60,6.5,75,6.67,90,6.68,110,6.86,120,6.79,135,6.43,150,5.79,152.9,5.650334
12,40,6.017928,52,6.66,60,6.85,75,7,90,7.05,110,7.25,120,7.22,135,6.99,150,6.52,156.8,6.22324
14,39.6,6.255571,52,6.88,60,7.05,75,7.22,90,7.26,110,7.51,120,7.53,135,7.35,150,7.01,166.4,6.49203
16,39.3,6.357902,52,6.99,60,7.17,75,7.37,90,7.44,110,7.72,120,7.77,135,7.64,150,7.34,176.3,6.834245
20,38.8,6.454196,52,7.1,60,7.29,75,7.57,90,7.72,110,8.03,120,8.23,135,8.18,150,7.87,179,7.451135

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.75	5.02	5.18	5.07	5.06	4.93	4.48	3.82
8	5.65	5.91	6.08	6	6.15	6.03	5.56	4.89
10	6.28	6.5	6.67	6.68	6.86	6.79	6.43	5.79
12	6.66	6.85	7	7.05	7.25	7.22	6.99	6.52
14	6.88	7.05	7.22	7.26	7.51	7.53	7.35	7.01
16	6.99	7.17	7.37	7.44	7.72	7.77	7.64	7.34
20	7.1	7.29	7.57	7.72	8.03	8.23	8.18	7.87

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.08	146.6°	3.31
8	42.1°	3.77	150.2°	4.24
10	41.2°	4.26	152.9°	5.03
12	40°	4.61	156.8°	5.72
14	39.6°	4.82	166.4°	6.31
16	39.3°	4.92	176.3°	6.82
20	38.8°	5.03	179°	7.45

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