JSQUARRED — ORC Rating

GPH

620.4

OSN

601

LOA

10.57 m

Displacement

3910 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6515

Medium

0.8857

High

1.0096

Triple Offshore

Low

0.8416

Medium

1.0932

High

1.2326

Boat Specifications

Dimensions

Length overall: 10.57 m
Beam: 3.35 m
Draft: 2 m
Displacement: 3910 kg
Crew weight: 654 kg
Wetted surface: 24.76 m²

Sails

Mainsail: 34.74 m²
Genoa: 26 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 95.34 m²

Design

Type: J 105
Builder: TILLOTSON-PEARSON
Designer: JOHNSTONE Rodney
Year built: 1991
Stability index: 107.6

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.

6,43.2,4.540662,52,5.09,60,5.4,75,5.62,90,5.77,110,5.84,120,5.69,135,5.14,144.2,4.660546,150,4.36
8,41.8,5.43277,52,6.11,60,6.42,75,6.64,90,6.87,110,6.98,120,6.87,135,6.38,147.5,5.655737,150,5.51
10,41.1,6.170682,52,6.79,60,6.98,75,7.13,90,7.33,110,7.53,120,7.46,135,7.16,148.8,6.5703,150,6.49
12,38.8,6.454196,52,7.1,60,7.27,75,7.44,90,7.54,110,8.01,120,8.01,135,7.66,150,7.12,150.7,7.063659
14,37.8,6.54302,52,7.23,60,7.44,75,7.72,90,7.82,110,8.39,120,8.61,135,8.25,150,7.47,151.1,7.390362
16,37.6,6.601121,52,7.3,60,7.53,75,7.95,90,8.19,110,8.69,120,9.15,135,8.93,150,7.84,174.8,6.998804
20,37.5,6.743527,52,7.39,60,7.61,75,8.18,90,8.76,110,9.27,120,9.95,135,10.64,142.1,9.998934,150,9.11

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.09	5.4	5.62	5.77	5.84	5.69	5.14	4.36
8	6.11	6.42	6.64	6.87	6.98	6.87	6.38	5.51
10	6.79	6.98	7.13	7.33	7.53	7.46	7.16	6.49
12	7.1	7.27	7.44	7.54	8.01	8.01	7.66	7.12
14	7.23	7.44	7.72	7.82	8.39	8.61	8.25	7.47
16	7.3	7.53	7.95	8.19	8.69	9.15	8.93	7.84
20	7.39	7.61	8.18	8.76	9.27	9.95	10.64	9.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.31	144.2°	3.78
8	41.8°	4.05	147.5°	4.77
10	41.1°	4.65	148.8°	5.62
12	38.8°	5.03	150.7°	6.16
14	37.8°	5.17	151.1°	6.47
16	37.6°	5.23	174.8°	6.97
20	37.5°	5.35	142.1°	7.89

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