J-BLUE: ORC Rating

GPH

637.4

OSN

618.9

LOA

9.6 m

Displacement

3574 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7144

Medium

0.9676

High

1.1039

Triple Offshore

Low

0.9249

Medium

1.1949

High

1.3428

Boat Specifications

Dimensions

Length overall: 9.6 m
Beam: 3.45 m
Draft: 1.99 m
Displacement: 3574 kg
Crew weight: 582 kg
Wetted surface: 22.52 m²

Sails

Mainsail: 32.52 m²
Genoa: 22.24 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 86.07 m²

Design

Type: JPK 960
Builder: JPK Composites
Designer: VALER Jacques
Year built: 2003

Performance data

Polar CSV

Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.

6,43,4.443814,52,4.99,60,5.29,75,5.52,90,5.69,110,5.76,120,5.59,135,5.01,144.3,4.531554,150,4.24
8,41.5,5.27401,52,5.95,60,6.25,75,6.47,90,6.72,110,6.81,120,6.7,135,6.19,147.8,5.447929,150,5.33
10,40.8,5.957767,52,6.59,60,6.78,75,6.94,90,7.18,110,7.32,120,7.23,135,6.94,148.5,6.356726,150,6.26
12,38.7,6.278587,52,6.91,60,7.08,75,7.23,90,7.4,110,7.79,120,7.73,135,7.38,150,6.86,150.4,6.831552
14,38,6.408542,52,7.07,60,7.27,75,7.51,90,7.59,110,8.21,120,8.29,135,7.89,150,7.2,174.3,6.371503
16,38,6.471993,52,7.14,60,7.37,75,7.76,90,7.92,110,8.49,120,8.86,135,8.45,150,7.52,176.9,6.860038
20,38.1,6.53167,52,7.17,60,7.43,75,8,90,8.53,110,9,120,9.64,135,9.94,150,8.51,177.3,7.558391

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.99	5.29	5.52	5.69	5.76	5.59	5.01	4.24
8	5.95	6.25	6.47	6.72	6.81	6.7	6.19	5.33
10	6.59	6.78	6.94	7.18	7.32	7.23	6.94	6.26
12	6.91	7.08	7.23	7.4	7.79	7.73	7.38	6.86
14	7.07	7.27	7.51	7.59	8.21	8.29	7.89	7.2
16	7.14	7.37	7.76	7.92	8.49	8.86	8.45	7.52
20	7.17	7.43	8	8.53	9	9.64	9.94	8.51

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.25	144.3°	3.68
8	41.5°	3.95	147.8°	4.61
10	40.8°	4.51	148.5°	5.42
12	38.7°	4.9	150.4°	5.94
14	38°	5.05	174.3°	6.34
16	38°	5.1	176.9°	6.85
20	38.1°	5.14	177.3°	7.55

VPP POLAR · BOAT SPEED BY TWAKT

TRUE WIND ANGLE —

READ AT ANGLE

Hover or tap the chart, or use the slider, to read boat speeds.

True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt

Data table

Boat speed by true wind angle and true wind speed
TWA	Boat speed in 6 kt (kt)	Boat speed in 8 kt (kt)	Boat speed in 10 kt (kt)	Boat speed in 12 kt (kt)	Boat speed in 14 kt (kt)	Boat speed in 16 kt (kt)	Boat speed in 20 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	4.99	5.95	6.59	6.91	7.07	7.14	7.17
60°	5.29	6.25	6.78	7.08	7.27	7.37	7.43
75°	5.52	6.47	6.94	7.23	7.51	7.76	8.00
90°	5.69	6.72	7.18	7.40	7.59	7.92	8.53
110°	5.76	6.81	7.32	7.79	8.21	8.49	9.00
120°	5.59	6.70	7.23	7.73	8.29	8.86	9.64
135°	5.01	6.19	6.94	7.38	7.89	8.45	9.94
150°	4.24	5.33	6.26	6.86	7.20	7.52	8.51