J IN MOTION — ORC Rating

GPH

618.4

OSN

602.8

LOA

9.95 m

Displacement

3932 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6514

Medium

0.8815

High

0.9973

Triple Offshore

Low

0.8538

Medium

1.0925

High

1.2192

Boat Specifications

Dimensions

Length overall: 9.95 m
Beam: 3.41 m
Draft: 2.11 m
Displacement: 3932 kg
Crew weight: 562 kg
Wetted surface: 22.79 m²

Sails

Mainsail: 34.21 m²
Genoa: 25.21 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 106.34 m²

Design

Type: J 99
Builder: J COMPOSITES
Designer: JOHNSTONE
Year built: 2019
Stability index: 109.8

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.

6,46,4.750537,52,5.21,60,5.66,75,6.14,90,6.29,110,5.96,120,5.77,135,5.16,144.2,4.685205,150,4.38
8,44.4,5.65452,52,6.26,60,6.64,75,6.96,90,7.08,110,6.98,120,6.89,135,6.43,147.3,5.68026,150,5.52
10,40.6,6.084781,52,6.71,60,6.98,75,7.3,90,7.49,110,7.5,120,7.44,135,7.16,148.7,6.588966,150,6.5
12,38.4,6.367286,52,7.03,60,7.19,75,7.49,90,7.84,110,7.91,120,7.97,135,7.66,150,7.1,150.5,7.066077
14,38.1,6.506255,52,7.16,60,7.36,75,7.62,90,8.08,110,8.25,120,8.49,135,8.21,150,7.44,150.2,7.432884
16,37.8,6.54302,52,7.22,60,7.45,75,7.83,90,8.26,110,8.7,120,8.86,135,8.81,150,7.8,174.8,6.988763
20,37.6,6.626365,52,7.28,60,7.49,75,8.03,90,8.55,110,9.42,120,9.54,135,10.51,141,9.908049,150,8.89

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.21	5.66	6.14	6.29	5.96	5.77	5.16	4.38
8	6.26	6.64	6.96	7.08	6.98	6.89	6.43	5.52
10	6.71	6.98	7.3	7.49	7.5	7.44	7.16	6.5
12	7.03	7.19	7.49	7.84	7.91	7.97	7.66	7.1
14	7.16	7.36	7.62	8.08	8.25	8.49	8.21	7.44
16	7.22	7.45	7.83	8.26	8.7	8.86	8.81	7.8
20	7.28	7.49	8.03	8.55	9.42	9.54	10.51	8.89

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46°	3.3	144.2°	3.8
8	44.4°	4.04	147.3°	4.78
10	40.6°	4.62	148.7°	5.63
12	38.4°	4.99	150.5°	6.15
14	38.1°	5.12	150.2°	6.45
16	37.8°	5.17	174.8°	6.96
20	37.6°	5.25	141°	7.7

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