B FIRST — ORC Rating | RegattaPages

GPH

645.6

OSN

629

LOA

9.982 m

Displacement

4762 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.648

Medium

0.8453

High

0.9345

Triple Offshore

Low

0.8295

Medium

1.0429

High

1.137

Boat Specifications

Dimensions

Length overall: 9.982 m
Beam: 3.37 m
Draft: 2.01 m
Displacement: 4762 kg
Crew weight: 215 kg
Wetted surface: 22.96 m²

Sails

Mainsail: 33.46 m²
Genoa: 25.88 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 100.4 m²

Design

Type: FIRST 34.7
Builder: BENETEAU
Designer: FARR
Year built: 2005
Stability index: 128

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.

6,42.9,4.532158,52,5.03,60,5.29,75,5.48,90,5.61,110,5.75,120,5.63,135,5.09,144.3,4.617752,150,4.33
8,40.8,5.29726,52,5.94,60,6.17,75,6.35,90,6.54,110,6.74,120,6.67,135,6.25,147.8,5.566105,150,5.44
10,40,5.796008,52,6.47,60,6.68,75,6.85,90,6.92,110,7.24,120,7.23,135,6.98,148.8,6.418318,150,6.34
12,39.4,6.004657,52,6.72,60,6.94,75,7.13,90,7.18,110,7.55,120,7.64,135,7.44,150,6.92,150.1,6.909704
14,39.4,6.108185,52,6.82,60,7.05,75,7.32,90,7.44,110,7.76,120,8.01,135,7.87,150,7.26,167.6,6.460714
16,39.6,6.151744,52,6.87,60,7.11,75,7.44,90,7.65,110,7.95,120,8.26,135,8.31,150,7.56,174.5,6.851543
20,40.6,6.176975,52,6.88,60,7.14,75,7.55,90,7.95,110,8.27,120,8.69,135,9.33,150,8.21,175.8,7.530223

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.03	5.29	5.48	5.61	5.75	5.63	5.09	4.33
8	5.94	6.17	6.35	6.54	6.74	6.67	6.25	5.44
10	6.47	6.68	6.85	6.92	7.24	7.23	6.98	6.34
12	6.72	6.94	7.13	7.18	7.55	7.64	7.44	6.92
14	6.82	7.05	7.32	7.44	7.76	8.01	7.87	7.26
16	6.87	7.11	7.44	7.65	7.95	8.26	8.31	7.56
20	6.88	7.14	7.55	7.95	8.27	8.69	9.33	8.21

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.32	144.3°	3.75
8	40.8°	4.01	147.8°	4.71
10	40°	4.44	148.8°	5.49
12	39.4°	4.64	150.1°	5.99
14	39.4°	4.72	167.6°	6.31
16	39.6°	4.74	174.5°	6.82
20	40.6°	4.69	175.8°	7.51

Loading polar chart…