SIRAH — ORC Rating | RegattaPages

GPH

646.2

OSN

624.3

LOA

14.072 m

Displacement

13810 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6159

Medium

0.8467

High

0.9774

Triple Offshore

Low

0.7938

Medium

1.0582

High

1.191

Boat Specifications

Dimensions

Length overall: 14.072 m
Beam: 4.09 m
Draft: 2.39 m
Displacement: 13810 kg
Crew weight: 525 kg
Wetted surface: 42.77 m²

Sails

Mainsail: 50.08 m²
Genoa: 51.24 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 148.22 m²

Design

Type: WIND 46
Builder: NAUTA
Designer: G.FRERS
Year built: 1977

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.

6,44.2,4.435699,52,4.87,60,5.14,75,5.3,90,5.32,110,5.44,120,5.27,135,4.73,144.2,4.266002,150,4
8,41.6,5.268802,52,5.86,60,6.11,75,6.29,90,6.42,110,6.62,120,6.47,135,5.94,146.4,5.342642,150,5.14
10,40.3,5.847889,52,6.56,60,6.81,75,7.01,90,7.17,110,7.41,120,7.33,135,6.92,146.7,6.305281,150,6.08
12,40.3,6.267469,52,7,60,7.24,75,7.45,90,7.53,110,7.86,120,7.84,135,7.58,147.1,7.05081,150,6.84
14,40.3,6.49037,52,7.23,60,7.48,75,7.71,90,7.78,110,8.14,120,8.19,135,8.01,148,7.499575,150,7.34
16,40.3,6.634601,52,7.34,60,7.59,75,7.88,90,8.01,110,8.33,120,8.48,135,8.35,150,7.71,169.6,6.832244
20,40,6.76201,52,7.48,60,7.73,75,8.06,90,8.3,110,8.6,120,8.91,135,8.98,150,8.26,175.8,7.660573
24,40.4,6.815153,52,7.52,60,7.77,75,8.16,90,8.5,110,8.71,120,9.19,135,9.55,150,8.76,176.8,8.222821

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.87	5.14	5.3	5.32	5.44	5.27	4.73	4
8	5.86	6.11	6.29	6.42	6.62	6.47	5.94	5.14
10	6.56	6.81	7.01	7.17	7.41	7.33	6.92	6.08
12	7	7.24	7.45	7.53	7.86	7.84	7.58	6.84
14	7.23	7.48	7.71	7.78	8.14	8.19	8.01	7.34
16	7.34	7.59	7.88	8.01	8.33	8.48	8.35	7.71
20	7.48	7.73	8.06	8.3	8.6	8.91	8.98	8.26
24	7.52	7.77	8.16	8.5	8.71	9.19	9.55	8.76

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.18	144.2°	3.46
8	41.6°	3.94	146.4°	4.45
10	40.3°	4.46	146.7°	5.27
12	40.3°	4.78	147.1°	5.92
14	40.3°	4.95	148°	6.36
16	40.3°	5.06	169.6°	6.72
20	40°	5.18	175.8°	7.64
24	40.4°	5.19	176.8°	8.21

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