BLACK SHEEP — ORC Rating

GPH

668.3

OSN

649.9

LOA

7.53 m

Displacement

1231 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6247

Medium

0.8234

High

0.9244

Triple Offshore

Low

0.8008

Medium

1.0031

High

1.1278

Boat Specifications

Dimensions

Length overall: 7.53 m
Beam: 2.58 m
Draft: 1.59 m
Displacement: 1231 kg
Crew weight: 350 kg
Wetted surface: 11.8 m²

Sails

Mainsail: 21.04 m²
Genoa: 12.7 m²
Spinnaker: 42.72 m²
Asymmetric spinnaker: 0 m²

Design

Type: PLATU 25
Builder: BENETEAU
Designer: B. FARR
Year built: 1995
Stability index: 110.9

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.

6,42.4,4.441704,52,5,60,5.28,75,5.48,90,5.5,110,5.52,120,5.36,135,4.83,144.7,4.300745,150,4.05
8,41.2,5.276344,52,5.84,60,6.01,75,6.12,90,6.22,110,6.3,120,6.2,135,5.87,148.4,5.201197,150,5.11
10,38.2,5.611709,52,6.17,60,6.31,75,6.47,90,6.56,110,6.85,120,6.76,135,6.39,150,5.95,155.2,5.739292
12,37.5,5.722545,52,6.3,60,6.51,75,6.81,90,6.91,110,7.4,120,7.42,135,6.93,150,6.43,167.6,5.938532
14,37.5,5.760359,52,6.36,60,6.61,75,7.07,90,7.34,110,7.77,120,8.11,135,7.58,150,6.94,177.2,6.287506
16,37.2,5.787604,52,6.38,60,6.66,75,7.2,90,7.72,110,8.12,120,8.62,135,8.39,150,7.54,175.4,6.741716
20,38.1,5.858171,52,6.49,60,6.82,75,7.32,90,8.11,110,8.76,120,9.52,135,10.81,146.9,9.418436,150,9.11

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5	5.28	5.48	5.5	5.52	5.36	4.83	4.05
8	5.84	6.01	6.12	6.22	6.3	6.2	5.87	5.11
10	6.17	6.31	6.47	6.56	6.85	6.76	6.39	5.95
12	6.3	6.51	6.81	6.91	7.4	7.42	6.93	6.43
14	6.36	6.61	7.07	7.34	7.77	8.11	7.58	6.94
16	6.38	6.66	7.2	7.72	8.12	8.62	8.39	7.54
20	6.49	6.82	7.32	8.11	8.76	9.52	10.81	9.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.28	144.7°	3.51
8	41.2°	3.97	148.4°	4.43
10	38.2°	4.41	155.2°	5.21
12	37.5°	4.54	167.6°	5.8
14	37.5°	4.57	177.2°	6.28
16	37.2°	4.61	175.4°	6.72
20	38.1°	4.61	146.9°	7.89

Loading polar chart…