Leroy Brown — ORC Rating

GPH

524.1

OSN

510.7

LOA

12.415 m

Displacement

4970 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.9026

Medium

1.1708

High

1.3389

Triple Offshore

Low

1.1564

Medium

1.4343

High

1.6183

Boat Specifications

Dimensions

Length overall: 12.415 m
Beam: 3.96 m
Draft: 2.59 m
Displacement: 4970 kg
Crew weight: 784 kg
Wetted surface: 29.62 m²

Sails

Mainsail: 64.34 m²
Genoa: 40.11 m²
Spinnaker: 159.26 m²
Asymmetric spinnaker: 0 m²

Design

Type: Farr 40 one design
Builder: Mconaghy
Designer: Farr
Year built: 1997

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.

6,42.4,5.768798,52,6.49,60,6.87,75,7.17,90,7.14,110,6.91,120,6.73,135,6.1,143.3,5.562653,150,5.15
8,40.7,6.819372,52,7.55,60,7.77,75,7.93,90,7.93,110,7.98,120,7.92,135,7.51,143.6,6.95744,150,6.47
10,38,7.106502,52,7.89,60,8.12,75,8.39,90,8.44,110,8.53,120,8.63,135,8.24,150,7.5,150.4,7.464103
12,37.2,7.26903,52,8.04,60,8.3,75,8.76,90,9,110,8.95,120,9.25,135,9,150,8.19,157.2,7.81027
14,36.5,7.339615,52,8.12,60,8.42,75,8.98,90,9.45,110,9.38,120,9.7,135,9.87,150,8.86,171.7,7.862352
16,35.7,7.437659,52,8.24,60,8.52,75,9.12,90,9.77,110,9.84,120,10.18,135,10.88,150,9.63,156,9.162106
20,36.3,7.519279,52,8.39,60,8.78,75,9.43,90,10.12,110,11.14,120,11.39,135,12.49,144.2,12.576076,150,11.78

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.49	6.87	7.17	7.14	6.91	6.73	6.1	5.15
8	7.55	7.77	7.93	7.93	7.98	7.92	7.51	6.47
10	7.89	8.12	8.39	8.44	8.53	8.63	8.24	7.5
12	8.04	8.3	8.76	9	8.95	9.25	9	8.19
14	8.12	8.42	8.98	9.45	9.38	9.7	9.87	8.86
16	8.24	8.52	9.12	9.77	9.84	10.18	10.88	9.63
20	8.39	8.78	9.43	10.12	11.14	11.39	12.49	11.78

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	4.26	143.3°	4.46
8	40.7°	5.17	143.6°	5.6
10	38°	5.6	150.4°	6.49
12	37.2°	5.79	157.2°	7.2
14	36.5°	5.9	171.7°	7.78
16	35.7°	6.04	156°	8.37
20	36.3°	6.06	144.2°	10.2

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