BLACK RABBIT — ORC Rating

GPH

720.9

OSN

694.7

LOA

10.44 m

Displacement

6187 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5524

Medium

0.7684

High

0.9009

Triple Offshore

Low

0.7099

Medium

0.9484

High

1.0719

Boat Specifications

Dimensions

Length overall: 10.44 m
Beam: 3.24 m
Draft: 1.91 m
Displacement: 6187 kg
Crew weight: 532 kg
Wetted surface: 25.71 m²

Sails

Mainsail: 22.56 m²
Genoa: 40.51 m²
Spinnaker: 77.71 m²
Asymmetric spinnaker: 0 m²

Design

Type: Koopmans 34
Builder: Polymarin
Designer: D.Koopmans Sr.
Year built: 1980
Stability index: 123.9

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.

6,43.8,4.03181,52,4.47,60,4.72,75,4.85,90,4.74,110,4.73,120,4.59,135,4.1,146.9,3.64084,150,3.52
8,42,4.790453,52,5.33,60,5.56,75,5.72,90,5.66,110,5.79,120,5.66,135,5.18,150,4.54,150.5,4.515395
10,40.8,5.323681,52,5.92,60,6.13,75,6.3,90,6.32,110,6.5,120,6.43,135,6.07,150,5.44,152.3,5.330962
12,40.2,5.682145,52,6.29,60,6.47,75,6.64,90,6.71,110,6.9,120,6.86,135,6.63,150,6.17,156.8,5.885967
14,40.2,5.891625,52,6.49,60,6.67,75,6.85,90,6.91,110,7.17,120,7.16,135,6.99,150,6.66,167.6,6.133071
16,40,5.991819,52,6.59,60,6.78,75,7,90,7.09,110,7.39,120,7.42,135,7.28,150,6.99,176.3,6.493535
20,39.9,6.074311,52,6.67,60,6.88,75,7.17,90,7.36,110,7.69,120,7.87,135,7.82,150,7.52,179,7.111083

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.47	4.72	4.85	4.74	4.73	4.59	4.1	3.52
8	5.33	5.56	5.72	5.66	5.79	5.66	5.18	4.54
10	5.92	6.13	6.3	6.32	6.5	6.43	6.07	5.44
12	6.29	6.47	6.64	6.71	6.9	6.86	6.63	6.17
14	6.49	6.67	6.85	6.91	7.17	7.16	6.99	6.66
16	6.59	6.78	7	7.09	7.39	7.42	7.28	6.99
20	6.67	6.88	7.17	7.36	7.69	7.87	7.82	7.52

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.91	146.9°	3.05
8	42°	3.56	150.5°	3.93
10	40.8°	4.03	152.3°	4.72
12	40.2°	4.34	156.8°	5.41
14	40.2°	4.5	167.6°	5.99
16	40°	4.59	176.3°	6.48
20	39.9°	4.66	179°	7.11

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