Ladies First — ORC Rating

GPH

638.3

OSN

619.8

LOA

9.982 m

Displacement

4621 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7187

Medium

0.9756

High

1.1134

Triple Offshore

Low

0.9239

Medium

1.1943

High

1.3306

Boat Specifications

Dimensions

Length overall: 9.982 m
Beam: 3.37 m
Draft: 2 m
Displacement: 4621 kg
Crew weight: 600 kg
Wetted surface: 23.58 m²

Sails

Mainsail: 34.31 m²
Genoa: 30.55 m²
Spinnaker: 82.12 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 34.7
Builder: Beneteau
Designer: Farr
Year built: 2005

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.

6,42.6,4.564615,52,5.09,60,5.36,75,5.58,90,5.52,110,5.54,120,5.39,135,4.9,145.7,4.36994,150,4.17
8,41.3,5.377603,52,6.06,60,6.34,75,6.53,90,6.57,110,6.67,120,6.53,135,6.03,149.9,5.236078,150,5.23
10,40.7,6.054336,52,6.68,60,6.86,75,7,90,7.09,110,7.21,120,7.13,135,6.84,150,6.18,151.1,6.122464
12,39.3,6.319134,52,6.96,60,7.12,75,7.28,90,7.32,110,7.59,120,7.53,135,7.27,150,6.87,158.4,6.528451
14,39.1,6.442914,52,7.07,60,7.26,75,7.5,90,7.57,110,7.96,120,7.96,135,7.66,150,7.27,180,6.68
16,39.1,6.494457,52,7.12,60,7.33,75,7.67,90,7.84,110,8.19,120,8.4,135,8.1,150,7.63,180,7.12
20,39.4,6.509359,52,7.12,60,7.36,75,7.81,90,8.28,110,8.59,120,9,135,9.07,150,8.45,180,7.83

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.09	5.36	5.58	5.52	5.54	5.39	4.9	4.17
8	6.06	6.34	6.53	6.57	6.67	6.53	6.03	5.23
10	6.68	6.86	7	7.09	7.21	7.13	6.84	6.18
12	6.96	7.12	7.28	7.32	7.59	7.53	7.27	6.87
14	7.07	7.26	7.5	7.57	7.96	7.96	7.66	7.27
16	7.12	7.33	7.67	7.84	8.19	8.4	8.1	7.63
20	7.12	7.36	7.81	8.28	8.59	9	9.07	8.45

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.36	145.7°	3.61
8	41.3°	4.04	149.9°	4.53
10	40.7°	4.59	151.1°	5.36
12	39.3°	4.89	158.4°	6.07
14	39.1°	5	180°	6.68
16	39.1°	5.04	180°	7.12
20	39.4°	5.03	180°	7.83

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