MACI — ORC Rating | RegattaPages

GPH

623.4

OSN

607.2

LOA

9.95 m

Displacement

3977 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6534

Medium

0.8777

High

0.9877

Triple Offshore

Low

0.8509

Medium

1.0823

High

1.198

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: 22.5 m²

Sails

Mainsail: 33.62 m²
Genoa: 17.15 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 101.02 m²

Design

Type: J-99
Builder: J-BOATS
Designer: JOHNSTONE
Year built: 2019
Stability index: 107.5

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.

6,42.9,4.504856,52,5.09,60,5.53,75,6.01,90,6.2,110,6.02,120,5.79,135,5.19,143.9,4.715406,150,4.4
8,40.6,5.334062,52,6.03,60,6.42,75,6.84,90,7.01,110,6.94,120,6.85,135,6.4,147.8,5.672464,150,5.54
10,39.3,5.957302,52,6.6,60,6.78,75,7.15,90,7.41,110,7.44,120,7.42,135,7.13,148.9,6.540015,150,6.47
12,37.8,6.251938,52,6.95,60,7.11,75,7.3,90,7.62,110,7.84,120,7.87,135,7.63,150,7.07,150.2,7.052597
14,37.5,6.390595,52,7.1,60,7.29,75,7.5,90,7.79,110,8.19,120,8.27,135,8.12,150,7.43,150.2,7.42136
16,37.6,6.462283,52,7.17,60,7.37,75,7.68,90,7.94,110,8.5,120,8.6,135,8.64,150,7.77,174.5,6.972098
20,38.2,6.515181,52,7.21,60,7.45,75,7.86,90,8.23,110,9.02,120,9.45,135,10.09,150,8.5,175.7,7.691651

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.09	5.53	6.01	6.2	6.02	5.79	5.19	4.4
8	6.03	6.42	6.84	7.01	6.94	6.85	6.4	5.54
10	6.6	6.78	7.15	7.41	7.44	7.42	7.13	6.47
12	6.95	7.11	7.3	7.62	7.84	7.87	7.63	7.07
14	7.1	7.29	7.5	7.79	8.19	8.27	8.12	7.43
16	7.17	7.37	7.68	7.94	8.5	8.6	8.64	7.77
20	7.21	7.45	7.86	8.23	9.02	9.45	10.09	8.5

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.3	143.9°	3.81
8	40.6°	4.05	147.8°	4.8
10	39.3°	4.61	148.9°	5.6
12	37.8°	4.94	150.2°	6.12
14	37.5°	5.07	150.2°	6.44
16	37.6°	5.12	174.5°	6.94
20	38.2°	5.12	175.7°	7.67

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