SEVEN J SEVEN — ORC Rating

GPH

614.3

OSN

599.9

LOA

10.757 m

Displacement

4998 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6601

Medium

0.8882

High

1.0035

Triple Offshore

Low

0.8607

Medium

1.0998

High

1.2186

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.13 m
Displacement: 4998 kg
Crew weight: 560 kg
Wetted surface: 26.1 m²

Sails

Mainsail: 37.6 m²
Genoa: 31.49 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 122.84 m²

Design

Type: J-109
Builder: J-Composite
Designer: Johnstone
Year built: 2001

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.

6,42.8,4.661116,52,5.22,60,5.52,75,6.01,90,6.26,110,6.08,120,5.84,135,5.16,144,4.672337,150,4.37
8,41.2,5.502283,52,6.2,60,6.49,75,6.94,90,7.13,110,7.06,120,6.97,135,6.46,147.5,5.608309,150,5.46
10,40.5,6.19406,52,6.84,60,7.04,75,7.3,90,7.53,110,7.55,120,7.51,135,7.23,147.8,6.64151,150,6.49
12,39,6.446665,52,7.12,60,7.29,75,7.47,90,7.82,110,7.94,120,7.97,135,7.68,150,7.15,150.5,7.123524
14,38.2,6.527906,52,7.22,60,7.42,75,7.68,90,8.02,110,8.37,120,8.43,135,8.17,150,7.49,174,6.545859
16,38.4,6.596967,52,7.27,60,7.48,75,7.84,90,8.19,110,8.74,120,8.76,135,8.7,150,7.8,176.5,7.063174
20,38.2,6.731506,52,7.36,60,7.55,75,7.97,90,8.48,110,9.28,120,9.58,135,9.98,150,8.67,177.5,7.767393

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.22	5.52	6.01	6.26	6.08	5.84	5.16	4.37
8	6.2	6.49	6.94	7.13	7.06	6.97	6.46	5.46
10	6.84	7.04	7.3	7.53	7.55	7.51	7.23	6.49
12	7.12	7.29	7.47	7.82	7.94	7.97	7.68	7.15
14	7.22	7.42	7.68	8.02	8.37	8.43	8.17	7.49
16	7.27	7.48	7.84	8.19	8.74	8.76	8.7	7.8
20	7.36	7.55	7.97	8.48	9.28	9.58	9.98	8.67

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.42	144°	3.78
8	41.2°	4.14	147.5°	4.73
10	40.5°	4.71	147.8°	5.62
12	39°	5.01	150.5°	6.2
14	38.2°	5.13	174°	6.51
16	38.4°	5.17	176.5°	7.05
20	38.2°	5.29	177.5°	7.76

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