WHITE WATER DRAGON — ORC Rating

GPH

607.2

OSN

593.6

LOA

11.924 m

Displacement

7383 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6625

Medium

0.8901

High

1.0114

Triple Offshore

Low

0.8669

Medium

1.1146

High

1.2357

Boat Specifications

Dimensions

Length overall: 11.924 m
Beam: 3.77 m
Draft: 1.91 m
Displacement: 7383 kg
Crew weight: 745 kg
Wetted surface: 31.99 m²

Sails

Mainsail: 49.14 m²
Genoa: 45.12 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 102.06 m²

Design

Type: First 40.7 SD
Builder: Beneteau
Designer: Bruce Farr
Year built: 1997

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.

6,43.9,4.871271,52,5.41,60,5.77,75,6.08,90,6.29,110,6.07,120,5.74,135,5.06,144,4.561091,150,4.26
8,42.8,5.778694,52,6.45,60,6.79,75,7.08,90,7.31,110,7.18,120,6.91,135,6.24,148,5.48318,150,5.37
10,42,6.445581,52,7.12,60,7.36,75,7.56,90,7.78,110,7.72,120,7.58,135,7.18,148,6.473689,150,6.34
12,41.2,6.725013,52,7.4,60,7.62,75,7.81,90,8.1,110,8.12,120,8,135,7.71,149.2,7.159822,150,7.1
14,40.5,6.799,52,7.5,60,7.73,75,8.02,90,8.33,110,8.52,120,8.43,135,8.1,150,7.53,152,7.42966
16,40.3,6.844391,52,7.55,60,7.79,75,8.15,90,8.49,110,8.93,120,8.89,135,8.53,150,7.87,176,7.177484
20,40.5,6.891056,52,7.58,60,7.82,75,8.26,90,8.82,110,9.58,120,9.7,135,9.49,150,8.52,178,7.924828

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.41	5.77	6.08	6.29	6.07	5.74	5.06	4.26
8	6.45	6.79	7.08	7.31	7.18	6.91	6.24	5.37
10	7.12	7.36	7.56	7.78	7.72	7.58	7.18	6.34
12	7.4	7.62	7.81	8.1	8.12	8	7.71	7.1
14	7.5	7.73	8.02	8.33	8.52	8.43	8.1	7.53
16	7.55	7.79	8.15	8.49	8.93	8.89	8.53	7.87
20	7.58	7.82	8.26	8.82	9.58	9.7	9.49	8.52

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	3.51	144°	3.69
8	42.8°	4.24	148°	4.65
10	42°	4.79	148°	5.49
12	41.2°	5.06	149.2°	6.15
14	40.5°	5.17	152°	6.56
16	40.3°	5.22	176°	7.16
20	40.5°	5.24	178°	7.92

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