AVA — ORC Rating | RegattaPages

GPH

663

OSN

642.5

LOA

9.85 m

Displacement

3764 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6124

Medium

0.8339

High

0.9562

Triple Offshore

Low

0.7886

Medium

1.0234

High

1.1425

Boat Specifications

Dimensions

Length overall: 9.85 m
Beam: 3.21 m
Draft: 1.93 m
Displacement: 3764 kg
Crew weight: 500 kg
Wetted surface: 21.8 m²

Sails

Mainsail: 25.9 m²
Genoa: 33.06 m²
Spinnaker: 61.63 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 31.7 LR
Designer: Groupe Finot
Year built: 1998
Stability index: 109.5

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.

6,42.7,4.585567,52,5.13,60,5.39,75,5.54,90,5.41,110,5.15,120,4.98,135,4.46,145.7,3.934157,150,3.75
8,40.6,5.373573,52,6.01,60,6.23,75,6.37,90,6.32,110,6.26,120,6.09,135,5.56,149.6,4.8463,150,4.83
10,39.3,5.879767,52,6.52,60,6.69,75,6.82,90,6.83,110,6.9,120,6.81,135,6.43,150,5.76,152.3,5.647206
12,38.4,6.073803,52,6.76,60,6.93,75,7.1,90,7.15,110,7.31,120,7.25,135,6.97,150,6.5,157.7,6.171574
14,38.1,6.175859,52,6.86,60,7.05,75,7.31,90,7.42,110,7.67,120,7.65,135,7.37,150,6.98,169.4,6.419547
16,37.8,6.213971,52,6.92,60,7.12,75,7.43,90,7.65,110,7.98,120,8.03,135,7.78,150,7.36,177.2,6.81814
20,38.2,6.247957,52,6.96,60,7.18,75,7.57,90,7.97,110,8.37,120,8.74,135,8.65,150,8.13,178.1,7.544148

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.13	5.39	5.54	5.41	5.15	4.98	4.46	3.75
8	6.01	6.23	6.37	6.32	6.26	6.09	5.56	4.83
10	6.52	6.69	6.82	6.83	6.9	6.81	6.43	5.76
12	6.76	6.93	7.1	7.15	7.31	7.25	6.97	6.5
14	6.86	7.05	7.31	7.42	7.67	7.65	7.37	6.98
16	6.92	7.12	7.43	7.65	7.98	8.03	7.78	7.36
20	6.96	7.18	7.57	7.97	8.37	8.74	8.65	8.13

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.7°	3.37	145.7°	3.25
8	40.6°	4.08	149.6°	4.18
10	39.3°	4.55	152.3°	5
12	38.4°	4.76	157.7°	5.71
14	38.1°	4.86	169.4°	6.31
16	37.8°	4.91	177.2°	6.81
20	38.2°	4.91	178.1°	7.54

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