Sirene — ORC Rating | RegattaPages

GPH

682.7

OSN

657.9

LOA

9.61 m

Displacement

3858 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5817

Medium

0.8122

High

0.9545

Triple Offshore

Low

0.7508

Medium

1.0005

High

1.1369

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.94 m
Displacement: 3858 kg
Crew weight: 582 kg
Wetted surface: 22.24 m²

Sails

Mainsail: 26.34 m²
Genoa: 20.7 m²
Spinnaker: 61.85 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 31.7 LR
Builder: Beneteau
Designer: Finot
Year built: 1998

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.

6,43.5,4.177153,52,4.63,60,4.87,75,5.02,90,5.09,110,5.14,120,4.96,135,4.44,145.1,3.950488,150,3.74
8,41.6,5.00135,52,5.57,60,5.81,75,5.97,90,6.14,110,6.24,120,6.07,135,5.54,149.4,4.844657,150,4.81
10,40,5.534927,52,6.19,60,6.4,75,6.56,90,6.77,110,6.89,120,6.79,135,6.39,150,5.73,152.3,5.613323
12,38.9,5.936448,52,6.58,60,6.75,75,6.91,90,7.1,110,7.29,120,7.23,135,6.93,150,6.46,157.5,6.147988
14,38,6.129358,52,6.8,60,6.97,75,7.15,90,7.28,110,7.64,120,7.61,135,7.33,150,6.95,169.1,6.395381
16,37.8,6.213971,52,6.9,60,7.1,75,7.35,90,7.45,110,7.94,120,7.98,135,7.71,150,7.32,177.2,6.778092
20,37.9,6.273096,52,6.98,60,7.2,75,7.59,90,7.88,110,8.33,120,8.67,135,8.54,150,8.04,178.6,7.482234
24,38.9,6.270534,52,6.97,60,7.22,75,7.68,90,8.14,110,8.61,120,9.18,135,9.68,150,8.9,178.1,8.174494

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.63	4.87	5.02	5.09	5.14	4.96	4.44	3.74
8	5.57	5.81	5.97	6.14	6.24	6.07	5.54	4.81
10	6.19	6.4	6.56	6.77	6.89	6.79	6.39	5.73
12	6.58	6.75	6.91	7.1	7.29	7.23	6.93	6.46
14	6.8	6.97	7.15	7.28	7.64	7.61	7.33	6.95
16	6.9	7.1	7.35	7.45	7.94	7.98	7.71	7.32
20	6.98	7.2	7.59	7.88	8.33	8.67	8.54	8.04
24	6.97	7.22	7.68	8.14	8.61	9.18	9.68	8.9

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.03	145.1°	3.24
8	41.6°	3.74	149.4°	4.17
10	40°	4.24	152.3°	4.97
12	38.9°	4.62	157.5°	5.68
14	38°	4.83	169.1°	6.28
16	37.8°	4.91	177.2°	6.77
20	37.9°	4.95	178.6°	7.48
24	38.9°	4.88	178.1°	8.17

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