BLACK RABBIT — ORC Rating

GPH

722.5

OSN

698.7

LOA

10.44 m

Displacement

6187 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5478

Medium

0.7585

High

0.9006

Triple Offshore

Low

0.7069

Medium

0.9447

High

1.0783

Boat Specifications

Dimensions

Length overall: 10.44 m
Beam: 3.24 m
Draft: 1.91 m
Displacement: 6187 kg
Crew weight: 539 kg
Wetted surface: 25.72 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

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.

6,43.5,3.91522,52,4.39,60,4.66,75,4.86,90,4.8,110,4.78,120,4.65,135,4.2,147.5,3.687493,150,3.59
8,42,4.628977,52,5.19,60,5.48,75,5.73,90,5.69,110,5.82,120,5.69,135,5.2,150,4.57,151,4.527682
10,41.6,5.201939,52,5.86,60,6.15,75,6.37,90,6.42,110,6.58,120,6.5,135,6.12,150,5.42,152,5.323079
12,42,5.718939,52,6.32,60,6.53,75,6.7,90,6.81,110,6.95,120,6.9,135,6.68,150,6.18,155,5.969275
14,41.8,5.996169,52,6.55,60,6.73,75,6.9,90,6.98,110,7.23,120,7.2,135,7.01,150,6.69,172,6.08926
16,41.2,6.087067,52,6.65,60,6.84,75,7.06,90,7.15,110,7.5,120,7.5,135,7.29,150,6.99,180,6.55
20,40.9,6.138756,52,6.71,60,6.92,75,7.25,90,7.48,110,7.81,120,8.05,135,7.91,150,7.54,180,7.13

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.39	4.66	4.86	4.8	4.78	4.65	4.2	3.59
8	5.19	5.48	5.73	5.69	5.82	5.69	5.2	4.57
10	5.86	6.15	6.37	6.42	6.58	6.5	6.12	5.42
12	6.32	6.53	6.7	6.81	6.95	6.9	6.68	6.18
14	6.55	6.73	6.9	6.98	7.23	7.2	7.01	6.69
16	6.65	6.84	7.06	7.15	7.5	7.5	7.29	6.99
20	6.71	6.92	7.25	7.48	7.81	8.05	7.91	7.54

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	2.84	147.5°	3.11
8	42°	3.44	151°	3.96
10	41.6°	3.89	152°	4.7
12	42°	4.25	155°	5.41
14	41.8°	4.47	172°	6.03
16	41.2°	4.58	180°	6.55
20	40.9°	4.64	180°	7.13

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