YES! — ORC Rating | RegattaPages

GPH

599.5

OSN

583.7

LOA

12.012 m

Displacement

6742 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7748

Medium

1.0295

High

1.1696

Triple Offshore

Low

0.9953

Medium

1.2663

High

1.4013

Boat Specifications

Dimensions

Length overall: 12.012 m
Beam: 3.77 m
Draft: 2.21 m
Displacement: 6742 kg
Crew weight: 500 kg
Wetted surface: 29.38 m²

Sails

Mainsail: 45.93 m²
Genoa: 41.16 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 120.58 m²

Design

Type: J-39 MOD.
Builder: J BOATS
Designer: JOHNSTONE
Year built: 1991

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.

6,41.9,4.930731,52,5.52,60,5.8,75,6.01,90,5.93,110,5.97,120,5.8,135,5.23,144.2,4.734523,150,4.44
8,40.7,5.816911,52,6.57,60,6.82,75,6.99,90,7.06,110,7.14,120,7,135,6.43,148.1,5.64212,150,5.53
10,39.9,6.465361,52,7.14,60,7.31,75,7.45,90,7.53,110,7.67,120,7.59,135,7.27,148.4,6.621841,150,6.51
12,38.4,6.686288,52,7.38,60,7.55,75,7.71,90,7.75,110,8.04,120,8.01,135,7.72,150,7.2,150.1,7.186554
14,37.9,6.805358,52,7.49,60,7.68,75,7.91,90,8.01,110,8.34,120,8.43,135,8.13,150,7.53,152.8,7.39811
16,37.5,6.85697,52,7.55,60,7.75,75,8.08,90,8.26,110,8.57,120,8.84,135,8.59,150,7.86,176.6,7.162607
20,36.8,6.993606,52,7.64,60,7.83,75,8.25,90,8.68,110,8.96,120,9.36,135,9.54,150,8.53,178.1,7.864324

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.52	5.8	6.01	5.93	5.97	5.8	5.23	4.44
8	6.57	6.82	6.99	7.06	7.14	7	6.43	5.53
10	7.14	7.31	7.45	7.53	7.67	7.59	7.27	6.51
12	7.38	7.55	7.71	7.75	8.04	8.01	7.72	7.2
14	7.49	7.68	7.91	8.01	8.34	8.43	8.13	7.53
16	7.55	7.75	8.08	8.26	8.57	8.84	8.59	7.86
20	7.64	7.83	8.25	8.68	8.96	9.36	9.54	8.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.9°	3.67	144.2°	3.84
8	40.7°	4.41	148.1°	4.79
10	39.9°	4.96	148.4°	5.64
12	38.4°	5.24	150.1°	6.23
14	37.9°	5.37	152.8°	6.58
16	37.5°	5.44	176.6°	7.15
20	36.8°	5.6	178.1°	7.86

Loading polar chart…