AMARENA II — ORC Rating

GPH

670.3

OSN

648.4

LOA

9.61 m

Displacement

3713 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5963

Medium

0.8251

High

0.9524

Triple Offshore

Low

0.771

Medium

1.0163

High

1.1422

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.93 m
Displacement: 3713 kg
Crew weight: 440 kg
Wetted surface: 21.59 m²

Sails

Mainsail: 25.58 m²
Genoa: 28.03 m²
Spinnaker: 60.47 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 31.7
Builder: BENETEAU
Designer: FINOT
Year built: 1998
Stability index: 109.8

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.

6,43.2,4.334892,52,4.85,60,5.13,75,5.34,90,5.26,110,5.18,120,5.02,135,4.51,146,3.968457,150,3.8
8,41.7,5.143053,52,5.77,60,6.05,75,6.27,90,6.24,110,6.31,120,6.15,135,5.59,150,4.86,150.2,4.851541
10,40.6,5.768689,52,6.41,60,6.61,75,6.77,90,6.84,110,6.94,120,6.85,135,6.48,150,5.79,152,5.685502
12,39.4,6.082303,52,6.72,60,6.89,75,7.05,90,7.15,110,7.33,120,7.26,135,6.99,150,6.55,157,6.246572
14,38.8,6.184737,52,6.84,60,7.03,75,7.27,90,7.37,110,7.73,120,7.68,135,7.38,150,7,169.4,6.470415
16,38.7,6.240146,52,6.89,60,7.09,75,7.43,90,7.65,110,8.07,120,8.14,135,7.83,150,7.37,178.4,6.842668
20,39,6.240784,52,6.9,60,7.12,75,7.56,90,8.08,110,8.48,120,8.95,135,8.85,150,8.23,178.1,7.564159

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.85	5.13	5.34	5.26	5.18	5.02	4.51	3.8
8	5.77	6.05	6.27	6.24	6.31	6.15	5.59	4.86
10	6.41	6.61	6.77	6.84	6.94	6.85	6.48	5.79
12	6.72	6.89	7.05	7.15	7.33	7.26	6.99	6.55
14	6.84	7.03	7.27	7.37	7.73	7.68	7.38	7
16	6.89	7.09	7.43	7.65	8.07	8.14	7.83	7.37
20	6.9	7.12	7.56	8.08	8.48	8.95	8.85	8.23

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.16	146°	3.29
8	41.7°	3.84	150.2°	4.21
10	40.6°	4.38	152°	5.02
12	39.4°	4.7	157°	5.75
14	38.8°	4.82	169.4°	6.36
16	38.7°	4.87	178.4°	6.84
20	39°	4.85	178.1°	7.56

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