Leroy Brown — ORC Rating

GPH

525.3

OSN

512.3

LOA

12.415 m

Displacement

4970 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8011

Medium

1.036

High

1.184

Triple Offshore

Low

1.0266

Medium

1.2712

High

1.4339

Boat Specifications

Dimensions

Length overall: 12.415 m
Beam: 3.96 m
Draft: 2.6 m
Displacement: 4970 kg
Crew weight: 785 kg
Wetted surface: 29.52 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.

6,42.4,5.768798,52,6.48,60,6.86,75,7.16,90,7.13,110,6.9,120,6.72,135,6.1,143.5,5.548251,150,5.15
8,40.5,6.759547,52,7.53,60,7.76,75,7.92,90,7.93,110,7.97,120,7.92,135,7.51,143.6,6.95744,150,6.47
10,38.2,7.062355,52,7.86,60,8.09,75,8.38,90,8.44,110,8.52,120,8.63,135,8.24,150,7.5,150.5,7.468211
12,37.5,7.222507,52,8,60,8.27,75,8.74,90,9,110,8.96,120,9.24,135,9,150,8.19,157.5,7.804048
14,36.8,7.305821,52,8.09,60,8.39,75,8.96,90,9.45,110,9.41,120,9.73,135,9.88,150,8.87,172,7.856459
16,36.4,7.429552,52,8.22,60,8.5,75,9.1,90,9.75,110,9.86,120,10.24,135,10.9,150,9.64,156,9.173052
20,36.8,7.49315,52,8.34,60,8.74,75,9.41,90,10.1,110,11.16,120,11.4,135,12.5,144.4,12.593765,150,11.82

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.48	6.86	7.16	7.13	6.9	6.72	6.1	5.15
8	7.53	7.76	7.92	7.93	7.97	7.92	7.51	6.47
10	7.86	8.09	8.38	8.44	8.52	8.63	8.24	7.5
12	8	8.27	8.74	9	8.96	9.24	9	8.19
14	8.09	8.39	8.96	9.45	9.41	9.73	9.88	8.87
16	8.22	8.5	9.1	9.75	9.86	10.24	10.9	9.64
20	8.34	8.74	9.41	10.1	11.16	11.4	12.5	11.82

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	4.26	143.5°	4.46
8	40.5°	5.14	143.6°	5.6
10	38.2°	5.55	150.5°	6.5
12	37.5°	5.73	157.5°	7.21
14	36.8°	5.85	172°	7.78
16	36.4°	5.98	156°	8.38
20	36.8°	6	144.4°	10.24

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