CHAITAN II — ORC Rating

GPH

595

OSN

578.1

LOA

11.924 m

Displacement

7004 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.693

Medium

0.9261

High

1.0572

Triple Offshore

Low

0.89

Medium

1.135

High

1.2575

Boat Specifications

Dimensions

Length overall: 11.924 m
Beam: 3.77 m
Draft: 2.41 m
Displacement: 7004 kg
Crew weight: 600 kg
Wetted surface: 31.09 m²

Sails

Mainsail: 47.05 m²
Genoa: 47.28 m²
Spinnaker: 103.18 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 40.7
Builder: BENETEAU
Designer: FARR
Year built: 1997
Stability index: 118.2

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.

6,42,5.180686,52,5.79,60,6.06,75,6.23,90,6.11,110,5.8,120,5.63,135,5.05,143.3,4.57734,150,4.24
8,40.2,6.048735,52,6.76,60,6.97,75,7.11,90,7.05,110,6.99,120,6.84,135,6.27,148.4,5.494719,150,5.41
10,38.8,6.505522,52,7.24,60,7.43,75,7.57,90,7.57,110,7.65,120,7.57,135,7.16,150,6.42,152,6.297089
12,37.8,6.669577,52,7.44,60,7.64,75,7.84,90,7.91,110,8.06,120,8.03,135,7.72,150,7.2,156.8,6.876028
14,37.6,6.790446,52,7.55,60,7.75,75,8.02,90,8.18,110,8.39,120,8.43,135,8.16,150,7.72,166.4,7.150493
16,37.2,6.829624,52,7.61,60,7.82,75,8.14,90,8.4,110,8.6,120,8.81,135,8.59,150,8.13,176.3,7.515666
20,38.1,6.938311,52,7.67,60,7.89,75,8.27,90,8.68,110,8.96,120,9.36,135,9.51,150,8.96,178.1,8.29456

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.79	6.06	6.23	6.11	5.8	5.63	5.05	4.24
8	6.76	6.97	7.11	7.05	6.99	6.84	6.27	5.41
10	7.24	7.43	7.57	7.57	7.65	7.57	7.16	6.42
12	7.44	7.64	7.84	7.91	8.06	8.03	7.72	7.2
14	7.55	7.75	8.02	8.18	8.39	8.43	8.16	7.72
16	7.61	7.82	8.14	8.4	8.6	8.81	8.59	8.13
20	7.67	7.89	8.27	8.68	8.96	9.36	9.51	8.96

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.85	143.3°	3.67
8	40.2°	4.62	148.4°	4.68
10	38.8°	5.07	152°	5.56
12	37.8°	5.27	156.8°	6.32
14	37.6°	5.38	166.4°	6.95
16	37.2°	5.44	176.3°	7.5
20	38.1°	5.46	178.1°	8.29

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