Fortissimo — ORC Rating

GPH

664.7

OSN

644.7

LOA

9.85 m

Displacement

3713 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6807

Medium

0.9354

High

1.0771

Triple Offshore

Low

0.8804

Medium

1.1497

High

1.2902

Boat Specifications

Dimensions

Length overall: 9.85 m
Beam: 3.22 m
Draft: 1.93 m
Displacement: 3713 kg
Crew weight: 581 kg
Wetted surface: 21.95 m²

Sails

Mainsail: 26.31 m²
Genoa: 30.48 m²
Spinnaker: 61.85 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 31.7 LR
Builder: Beneteau
Designer: Groupe 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.

6,42.7,4.422283,52,4.97,60,5.25,75,5.47,90,5.39,110,5.22,120,5.05,135,4.56,146.3,3.990605,150,3.83
8,41.2,5.209891,52,5.87,60,6.15,75,6.36,90,6.34,110,6.33,120,6.16,135,5.61,150,4.87,150.2,4.863065
10,40.4,5.843436,52,6.47,60,6.65,75,6.8,90,6.84,110,6.92,120,6.84,135,6.49,150,5.78,151.3,5.711705
12,38.9,6.12919,52,6.75,60,6.91,75,7.07,90,7.15,110,7.31,120,7.23,135,6.97,150,6.53,157.6,6.208452
14,38.1,6.213982,52,6.86,60,7.05,75,7.28,90,7.37,110,7.7,120,7.64,135,7.33,150,6.97,180,6.36
16,38.1,6.264812,52,6.91,60,7.11,75,7.44,90,7.65,110,8.07,120,8.09,135,7.75,150,7.31,180,6.84
20,38.5,6.222782,52,6.92,60,7.14,75,7.56,90,8.06,110,8.5,120,8.94,135,8.71,150,8.1,180,7.52

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.97	5.25	5.47	5.39	5.22	5.05	4.56	3.83
8	5.87	6.15	6.36	6.34	6.33	6.16	5.61	4.87
10	6.47	6.65	6.8	6.84	6.92	6.84	6.49	5.78
12	6.75	6.91	7.07	7.15	7.31	7.23	6.97	6.53
14	6.86	7.05	7.28	7.37	7.7	7.64	7.33	6.97
16	6.91	7.11	7.44	7.65	8.07	8.09	7.75	7.31
20	6.92	7.14	7.56	8.06	8.5	8.94	8.71	8.1

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.7°	3.25	146.3°	3.32
8	41.2°	3.92	150.2°	4.22
10	40.4°	4.45	151.3°	5.01
12	38.9°	4.77	157.6°	5.74
14	38.1°	4.89	180°	6.36
16	38.1°	4.93	180°	6.84
20	38.5°	4.87	180°	7.52

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