USUAL SUSPECTS — ORC Rating

GPH

621.3

OSN

600.7

LOA

10.57 m

Displacement

4067 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6532

Medium

0.8877

High

1.0085

Triple Offshore

Low

0.84

Medium

1.0929

High

1.2252

Boat Specifications

Dimensions

Length overall: 10.57 m
Beam: 3.35 m
Draft: 2.02 m
Displacement: 4067 kg
Crew weight: 520 kg
Wetted surface: 24.52 m²

Sails

Mainsail: 34.36 m²
Genoa: 24.91 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 88.95 m²

Design

Type: J 105
Builder: TPI
Designer: Johnstone
Year built: 1991
Stability index: 110.1

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.

6,43,4.621567,52,5.15,60,5.43,75,5.59,90,5.71,110,5.74,120,5.58,135,5.02,143.4,4.583856,150,4.25
8,40.8,5.508623,52,6.17,60,6.41,75,6.56,90,6.79,110,6.89,120,6.76,135,6.25,147.3,5.573309,150,5.41
10,39.3,6.125296,52,6.8,60,6.97,75,7.11,90,7.32,110,7.49,120,7.42,135,7.09,148.7,6.460229,150,6.38
12,37.6,6.399175,52,7.11,60,7.28,75,7.44,90,7.6,110,7.94,120,7.93,135,7.63,149.8,7.05794,150,7.04
14,37,6.523627,52,7.26,60,7.46,75,7.7,90,7.8,110,8.32,120,8.42,135,8.16,149.8,7.462904,150,7.45
16,36.6,6.589294,52,7.34,60,7.56,75,7.89,90,8.06,110,8.66,120,8.91,135,8.71,150,7.81,173.9,6.959405
20,37,6.698926,52,7.43,60,7.68,75,8.11,90,8.51,110,9.24,120,9.93,135,10.19,150,8.61,175.7,7.731764

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.15	5.43	5.59	5.71	5.74	5.58	5.02	4.25
8	6.17	6.41	6.56	6.79	6.89	6.76	6.25	5.41
10	6.8	6.97	7.11	7.32	7.49	7.42	7.09	6.38
12	7.11	7.28	7.44	7.6	7.94	7.93	7.63	7.04
14	7.26	7.46	7.7	7.8	8.32	8.42	8.16	7.45
16	7.34	7.56	7.89	8.06	8.66	8.91	8.71	7.81
20	7.43	7.68	8.11	8.51	9.24	9.93	10.19	8.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.38	143.4°	3.68
8	40.8°	4.17	147.3°	4.69
10	39.3°	4.74	148.7°	5.52
12	37.6°	5.07	149.8°	6.1
14	37°	5.21	149.8°	6.45
16	36.6°	5.29	173.9°	6.92
20	37°	5.35	175.7°	7.71

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