JASON — ORC Rating | RegattaPages

GPH

628

OSN

608.6

LOA

9.95 m

Displacement

4030 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6432

Medium

0.8816

High

1.0145

Triple Offshore

Low

0.8305

Medium

1.0802

High

1.2171

Boat Specifications

Dimensions

Length overall: 9.95 m
Beam: 3.41 m
Draft: 1.99 m
Displacement: 4030 kg
Crew weight: 565 kg
Wetted surface: 24.1 m²

Sails

Mainsail: 33.7 m²
Genoa: 26.14 m²
Spinnaker: 86.61 m²
Asymmetric spinnaker: 0 m²

Design

Type: J 99
Builder: J COMPOSITES
Designer: JOHNSTONE
Year built: 2019

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.

6,43.5,4.549375,52,5.09,60,5.4,75,5.63,90,5.63,110,5.73,120,5.57,135,5.03,145,4.504658,150,4.27
8,41.6,5.389155,52,6.06,60,6.36,75,6.58,90,6.72,110,6.83,120,6.72,135,6.22,148.5,5.465377,150,5.38
10,40.5,6.062551,52,6.72,60,6.91,75,7.06,90,7.21,110,7.37,120,7.3,135,7,150,6.35,151.5,6.258412
12,38.8,6.377208,52,7.03,60,7.2,75,7.36,90,7.41,110,7.81,120,7.78,135,7.46,150,7.02,158,6.686915
14,38.2,6.489731,52,7.17,60,7.38,75,7.63,90,7.7,110,8.17,120,8.29,135,7.95,150,7.44,180,6.8
16,38.2,6.553356,52,7.23,60,7.46,75,7.85,90,8.03,110,8.43,120,8.79,135,8.47,150,7.88,180,7.26
20,38.2,6.629706,52,7.27,60,7.5,75,8.05,90,8.57,110,8.92,120,9.43,135,9.81,150,8.89,180,8.1

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.09	5.4	5.63	5.63	5.73	5.57	5.03	4.27
8	6.06	6.36	6.58	6.72	6.83	6.72	6.22	5.38
10	6.72	6.91	7.06	7.21	7.37	7.3	7	6.35
12	7.03	7.2	7.36	7.41	7.81	7.78	7.46	7.02
14	7.17	7.38	7.63	7.7	8.17	8.29	7.95	7.44
16	7.23	7.46	7.85	8.03	8.43	8.79	8.47	7.88
20	7.27	7.5	8.05	8.57	8.92	9.43	9.81	8.89

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.3	145°	3.69
8	41.6°	4.03	148.5°	4.66
10	40.5°	4.61	151.5°	5.5
12	38.8°	4.97	158°	6.2
14	38.2°	5.1	180°	6.8
16	38.2°	5.15	180°	7.26
20	38.2°	5.21	180°	8.1

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