MACI — ORC Rating | RegattaPages

GPH

616.9

OSN

600.1

LOA

9.95 m

Displacement

3977 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6714

Medium

0.8904

High

0.9995

Triple Offshore

Low

0.8634

Medium

1.0923

High

1.2071

Boat Specifications

Dimensions

Length overall: 9.95 m
Beam: 3.41 m
Draft: 2.11 m
Displacement: 3977 kg
Crew weight: 450 kg
Wetted surface: 22.68 m²

Sails

Mainsail: 34.19 m²
Genoa: 25.14 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 102.38 m²

Design

Type: J-99
Builder: J-BOATS
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.

6,42.7,4.748851,52,5.27,60,5.54,75,5.83,90,6.08,110,5.94,120,5.8,135,5.2,143.4,4.745786,150,4.4
8,40.4,5.580809,52,6.22,60,6.44,75,6.73,90,6.94,110,6.95,120,6.86,135,6.4,147.6,5.684995,150,5.54
10,38.6,6.103487,52,6.77,60,6.94,75,7.09,90,7.37,110,7.45,120,7.42,135,7.14,148.9,6.540015,150,6.47
12,37.3,6.323278,52,7.03,60,7.19,75,7.36,90,7.6,110,7.8,120,7.87,135,7.64,150,7.07,150.2,7.064121
14,37,6.435977,52,7.14,60,7.33,75,7.57,90,7.77,110,8.17,120,8.28,135,8.12,150,7.43,150.2,7.42136
16,36.9,6.515068,52,7.2,60,7.4,75,7.71,90,7.92,110,8.48,120,8.62,135,8.63,150,7.77,174.5,6.972098
20,37,6.598755,52,7.28,60,7.5,75,7.88,90,8.27,110,9.04,120,9.54,135,10.1,150,8.49,175.7,7.691651
24,38.3,6.613349,52,7.28,60,7.52,75,7.96,90,8.49,110,9.51,120,10.78,135,12.18,141.4,12.488476,150,11.26

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.27	5.54	5.83	6.08	5.94	5.8	5.2	4.4
8	6.22	6.44	6.73	6.94	6.95	6.86	6.4	5.54
10	6.77	6.94	7.09	7.37	7.45	7.42	7.14	6.47
12	7.03	7.19	7.36	7.6	7.8	7.87	7.64	7.07
14	7.14	7.33	7.57	7.77	8.17	8.28	8.12	7.43
16	7.2	7.4	7.71	7.92	8.48	8.62	8.63	7.77
20	7.28	7.5	7.88	8.27	9.04	9.54	10.1	8.49
24	7.28	7.52	7.96	8.49	9.51	10.78	12.18	11.26

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.7°	3.49	143.4°	3.81
8	40.4°	4.25	147.6°	4.8
10	38.6°	4.77	148.9°	5.6
12	37.3°	5.03	150.2°	6.13
14	37°	5.14	150.2°	6.44
16	36.9°	5.21	174.5°	6.94
20	37°	5.27	175.7°	7.67
24	38.3°	5.19	141.4°	9.76

Loading polar chart…