CHAITAN II — ORC Rating

GPH

590.5

OSN

574.8

LOA

11.924 m

Displacement

7012 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6958

Medium

0.9323

High

1.0643

Triple Offshore

Low

0.8962

Medium

1.1437

High

1.2681

Boat Specifications

Dimensions

Length overall: 11.924 m
Beam: 3.77 m
Draft: 2.41 m
Displacement: 7012 kg
Crew weight: 600 kg
Wetted surface: 31.13 m²

Sails

Mainsail: 48.79 m²
Genoa: 47.83 m²
Spinnaker: 116.26 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 40.7
Builder: BENETEAU
Designer: 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.

6,42,5.046123,52,5.67,60,5.97,75,6.23,90,6.18,110,5.92,120,5.78,135,5.25,141.2,4.914428,150,4.42
8,40.9,5.979995,52,6.72,60,6.98,75,7.16,90,7.16,110,7.14,120,7.01,135,6.46,149,5.588174,150,5.53
10,39.8,6.560078,52,7.28,60,7.47,75,7.61,90,7.64,110,7.75,120,7.68,135,7.34,150,6.547152
12,38.6,6.743265,52,7.48,60,7.68,75,7.88,90,7.95,110,8.14,120,8.12,135,7.83,150,7.35,156,7.049458
14,37.9,6.818031,52,7.57,60,7.77,75,8.06,90,8.23,110,8.41,120,8.57,135,8.26,150,7.8,171,7.148004
16,37.9,6.881396,52,7.61,60,7.82,75,8.16,90,8.48,110,8.64,120,8.96,135,8.73,150,8.2,180,7.6
20,38.2,7.011455,52,7.67,60,7.87,75,8.25,90,8.77,110,9.04,120,9.44,135,9.79,150,9.1,180,8.38

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.67	5.97	6.23	6.18	5.92	5.78	5.25	4.42
8	6.72	6.98	7.16	7.16	7.14	7.01	6.46	5.53
10	7.28	7.47	7.61	7.64	7.75	7.68	7.34	6.55
12	7.48	7.68	7.88	7.95	8.14	8.12	7.83	7.35
14	7.57	7.77	8.06	8.23	8.41	8.57	8.26	7.8
16	7.61	7.82	8.16	8.48	8.64	8.96	8.73	8.2
20	7.67	7.87	8.25	8.77	9.04	9.44	9.79	9.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.75	141.2°	3.83
8	40.9°	4.52	149°	4.79
10	39.8°	5.04	150°	5.67
12	38.6°	5.27	156°	6.44
14	37.9°	5.38	171°	7.06
16	37.9°	5.43	180°	7.6
20	38.2°	5.51	180°	8.38

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