BLACK RABBIT — ORC Rating

GPH

726.4

OSN

700.8

LOA

10.44 m

Displacement

6187 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5432

Medium

0.7562

High

0.9014

Triple Offshore

Low

0.7

Medium

0.9415

High

1.0769

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
Stability index: 124

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.

6,44.2,3.905647,52,4.33,60,4.6,75,4.79,90,4.73,110,4.74,120,4.61,135,4.15,147.5,3.663779,150,3.57
8,42.4,4.617747,52,5.15,60,5.42,75,5.66,90,5.62,110,5.79,120,5.65,135,5.16,150,4.56,151.4,4.498948
10,41.8,5.1779,52,5.82,60,6.1,75,6.32,90,6.41,110,6.55,120,6.47,135,6.09,150,5.42,152,5.323079
12,42.3,5.719067,52,6.3,60,6.51,75,6.67,90,6.8,110,6.93,120,6.89,135,6.66,150,6.2,155,5.969275
14,41.8,5.996169,52,6.54,60,6.72,75,6.88,90,6.98,110,7.22,120,7.18,135,6.99,150,6.69,164.6,6.244195
16,41.1,6.09106,52,6.65,60,6.84,75,7.04,90,7.14,110,7.48,120,7.48,135,7.29,150,6.99,176.3,6.533619
20,40.6,6.150634,52,6.73,60,6.93,75,7.25,90,7.47,110,7.8,120,8.03,135,7.91,150,7.55,179,7.111083

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.33	4.6	4.79	4.73	4.74	4.61	4.15	3.57
8	5.15	5.42	5.66	5.62	5.79	5.65	5.16	4.56
10	5.82	6.1	6.32	6.41	6.55	6.47	6.09	5.42
12	6.3	6.51	6.67	6.8	6.93	6.89	6.66	6.2
14	6.54	6.72	6.88	6.98	7.22	7.18	6.99	6.69
16	6.65	6.84	7.04	7.14	7.48	7.48	7.29	6.99
20	6.73	6.93	7.25	7.47	7.8	8.03	7.91	7.55

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.8	147.5°	3.09
8	42.4°	3.41	151.4°	3.95
10	41.8°	3.86	152°	4.7
12	42.3°	4.23	155°	5.41
14	41.8°	4.47	164.6°	6.02
16	41.1°	4.59	176.3°	6.52
20	40.6°	4.67	179°	7.11

Loading polar chart…