Sirena — ORC Rating | RegattaPages

GPH

608

OSN

591.3

LOA

11.924 m

Displacement

6940 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7445

Medium

1.014

High

1.1692

Triple Offshore

Low

0.9652

Medium

1.2554

High

1.4072

Boat Specifications

Dimensions

Length overall: 11.924 m
Beam: 3.77 m
Draft: 1.93 m
Displacement: 6940 kg
Crew weight: 680 kg
Wetted surface: 30.11 m²

Sails

Mainsail: 47.38 m²
Genoa: 35.61 m²
Spinnaker: 101.82 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 40.7x1.90
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.

6,43.5,4.756165,52,5.32,60,5.66,75,5.95,90,5.91,110,5.85,120,5.69,135,5.15,144.7,4.607066,150,4.35
8,42.2,5.629015,52,6.32,60,6.67,75,6.94,90,6.94,110,7.06,120,6.91,135,6.32,148.9,5.523977,150,5.46
10,41.7,6.348456,52,7.04,60,7.29,75,7.46,90,7.57,110,7.69,120,7.61,135,7.24,150,6.44,150.9,6.386104
12,40.8,6.697534,52,7.38,60,7.59,75,7.77,90,7.83,110,8.1,120,8.04,135,7.75,150,7.25,155.9,6.945402
14,40,6.788118,52,7.51,60,7.74,75,7.99,90,8.1,110,8.49,120,8.48,135,8.15,150,7.72,171.1,7.075186
16,39.9,6.843377,52,7.57,60,7.8,75,8.17,90,8.38,110,8.75,120,8.93,135,8.59,150,8.1,180,7.53
20,40.4,6.998991,52,7.63,60,7.85,75,8.31,90,8.84,110,9.17,120,9.59,135,9.58,150,8.94,180,8.28

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.32	5.66	5.95	5.91	5.85	5.69	5.15	4.35
8	6.32	6.67	6.94	6.94	7.06	6.91	6.32	5.46
10	7.04	7.29	7.46	7.57	7.69	7.61	7.24	6.44
12	7.38	7.59	7.77	7.83	8.1	8.04	7.75	7.25
14	7.51	7.74	7.99	8.1	8.49	8.48	8.15	7.72
16	7.57	7.8	8.17	8.38	8.75	8.93	8.59	8.1
20	7.63	7.85	8.31	8.84	9.17	9.59	9.58	8.94

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.45	144.7°	3.76
8	42.2°	4.17	148.9°	4.73
10	41.7°	4.74	150.9°	5.58
12	40.8°	5.07	155.9°	6.34
14	40°	5.2	171.1°	6.99
16	39.9°	5.25	180°	7.53
20	40.4°	5.33	180°	8.28

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