DARK STORM — ORC Rating

GPH

542.1

OSN

525.8

LOA

12.188 m

Displacement

6097 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7605

Medium

1.0149

High

1.1546

Triple Offshore

Low

0.9755

Medium

1.2449

High

1.3989

Boat Specifications

Dimensions

Length overall: 12.188 m
Beam: 3.75 m
Draft: 2.35 m
Displacement: 6097 kg
Crew weight: 830 kg
Wetted surface: 33.16 m²

Sails

Mainsail: 51.69 m²
Genoa: 43.83 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 172.66 m²

Design

Type: J 121
Builder: CCF
Designer: JOHNSTONE
Year built: 2017

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.

6,42.9,5.474082,52,6.1,60,6.42,75,6.64,90,6.49,110,6.61,120,6.46,135,5.79,142.8,5.310535,150,4.89
8,40.7,6.476425,52,7.22,60,7.46,75,7.62,90,7.59,110,7.81,120,7.75,135,7.24,145.9,6.460882,150,6.18
10,38.6,6.999177,52,7.78,60,7.97,75,8.13,90,8.11,110,8.44,120,8.44,135,8.1,148.9,7.369196,150,7.28
12,37.3,7.203257,52,8.02,60,8.24,75,8.49,90,8.54,110,8.88,120,9.04,135,8.77,150,8.06,151.2,7.976659
14,37,7.337515,52,8.15,60,8.39,75,8.76,90,8.93,110,9.22,120,9.59,135,9.47,149.2,8.649996,150,8.59
16,36.7,7.433501,52,8.24,60,8.51,75,8.95,90,9.27,110,9.55,120,10.03,135,10.27,147.1,9.43284,150,9.14
20,36.5,7.526216,52,8.36,60,8.67,75,9.22,90,9.79,110,10.19,120,10.94,135,12.24,143.6,11.616439,150,10.79
24,37.4,7.565319,52,8.39,60,8.73,75,9.37,90,10.15,110,10.83,120,11.86,135,14.16,144.1,14.888124,150,13.93

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.1	6.42	6.64	6.49	6.61	6.46	5.79	4.89
8	7.22	7.46	7.62	7.59	7.81	7.75	7.24	6.18
10	7.78	7.97	8.13	8.11	8.44	8.44	8.1	7.28
12	8.02	8.24	8.49	8.54	8.88	9.04	8.77	8.06
14	8.15	8.39	8.76	8.93	9.22	9.59	9.47	8.59
16	8.24	8.51	8.95	9.27	9.55	10.03	10.27	9.14
20	8.36	8.67	9.22	9.79	10.19	10.94	12.24	10.79
24	8.39	8.73	9.37	10.15	10.83	11.86	14.16	13.93

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	4.01	142.8°	4.23
8	40.7°	4.91	145.9°	5.35
10	38.6°	5.47	148.9°	6.31
12	37.3°	5.73	151.2°	6.99
14	37°	5.86	149.2°	7.43
16	36.7°	5.96	147.1°	7.92
20	36.5°	6.05	143.6°	9.35
24	37.4°	6.01	144.1°	12.06

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