J LAB — ORC Rating | RegattaPages

GPH

620.9

OSN

602.2

LOA

9.95 m

Displacement

3969 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.666

Medium

0.8878

High

0.9986

Triple Offshore

Low

0.8535

Medium

1.087

High

1.2062

Boat Specifications

Dimensions

Length overall: 9.95 m
Beam: 3.41 m
Draft: 2 m
Displacement: 3969 kg
Crew weight: 440 kg
Wetted surface: 22.89 m²

Sails

Mainsail: 33.12 m²
Genoa: 25.89 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 99.88 m²

Design

Type: J-99
Builder: J Composites
Designer: J-Boats
Year built: 2018

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.

6,43.3,4.71301,52,5.22,60,5.49,75,5.67,90,5.78,110,5.89,120,5.75,135,5.18,143.9,4.715406,150,4.4
8,40.9,5.543402,52,6.18,60,6.4,75,6.55,90,6.77,110,6.91,120,6.82,135,6.38,147.8,5.672464,150,5.55
10,39.1,6.094996,52,6.74,60,6.9,75,7.03,90,7.2,110,7.43,120,7.39,135,7.11,149.3,6.512747,150,6.47
12,37.6,6.348688,52,7.02,60,7.18,75,7.33,90,7.41,110,7.82,120,7.86,135,7.61,150,7.05,150.2,7.041073
14,37.3,6.474132,52,7.15,60,7.34,75,7.57,90,7.65,110,8.12,120,8.3,135,8.1,150,7.42,150.1,7.405726
16,37.1,6.544766,52,7.23,60,7.43,75,7.75,90,7.91,110,8.35,120,8.73,135,8.61,150,7.75,174.3,6.944336
20,37.3,6.624985,52,7.31,60,7.54,75,7.93,90,8.32,110,8.81,120,9.46,135,10.2,150,8.48,175.7,7.661566
24,38.5,6.644449,52,7.3,60,7.55,75,8.03,90,8.58,110,9.26,120,10.34,135,12.83,141.3,12.800629,150,11.53

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.22	5.49	5.67	5.78	5.89	5.75	5.18	4.4
8	6.18	6.4	6.55	6.77	6.91	6.82	6.38	5.55
10	6.74	6.9	7.03	7.2	7.43	7.39	7.11	6.47
12	7.02	7.18	7.33	7.41	7.82	7.86	7.61	7.05
14	7.15	7.34	7.57	7.65	8.12	8.3	8.1	7.42
16	7.23	7.43	7.75	7.91	8.35	8.73	8.61	7.75
20	7.31	7.54	7.93	8.32	8.81	9.46	10.2	8.48
24	7.3	7.55	8.03	8.58	9.26	10.34	12.83	11.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.3°	3.43	143.9°	3.81
8	40.9°	4.19	147.8°	4.8
10	39.1°	4.73	149.3°	5.6
12	37.6°	5.03	150.2°	6.11
14	37.3°	5.15	150.1°	6.42
16	37.1°	5.22	174.3°	6.91
20	37.3°	5.27	175.7°	7.64
24	38.5°	5.2	141.3°	9.99

Loading polar chart…