xxx: ORC Rating

GPH

612

OSN

594.3

LOA

10.52 m

Displacement

3813 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7521

Medium

1.0092

High

1.1401

Triple Offshore

Low

0.9677

Medium

1.2433

High

1.3902

Boat Specifications

Dimensions

Length overall: 10.52 m
Beam: 3.35 m
Draft: 2 m
Displacement: 3813 kg
Crew weight: 649 kg
Wetted surface: 24.69 m²

Sails

Mainsail: 34.39 m²
Genoa: 36.55 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 86.33 m²

Design

Type: J/105
Builder: J/composites
Designer: Rod Johnstone
Year built: 1993

Performance data

Polar CSV

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

6,42.5,4.815013,52,5.39,60,5.68,75,5.91,90,5.82,110,5.76,120,5.61,135,5.05,144.1,4.567666,150,4.27
8,41.1,5.746033,52,6.45,60,6.69,75,6.85,90,6.86,110,6.93,120,6.79,135,6.25,147.8,5.518834,150,5.39
10,39.4,6.354066,52,6.99,60,7.15,75,7.28,90,7.36,110,7.5,120,7.39,135,7.07,148.7,6.448526,150,6.36
12,37.7,6.508907,52,7.19,60,7.37,75,7.59,90,7.63,110,8.01,120,7.93,135,7.55,150,7.01,150.3,6.999516
14,37,6.598755,52,7.28,60,7.49,75,7.84,90,8.01,110,8.5,120,8.55,135,8.09,150,7.36,152.7,7.213455
16,36.6,6.639118,52,7.34,60,7.56,75,8,90,8.34,110,8.83,120,9.17,135,8.72,150,7.74,176.7,6.991593
20,36.8,6.706369,52,7.39,60,7.62,75,8.15,90,8.75,110,9.45,120,10.13,135,10.34,150,8.8,177.2,7.73924

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.39	5.68	5.91	5.82	5.76	5.61	5.05	4.27
8	6.45	6.69	6.85	6.86	6.93	6.79	6.25	5.39
10	6.99	7.15	7.28	7.36	7.5	7.39	7.07	6.36
12	7.19	7.37	7.59	7.63	8.01	7.93	7.55	7.01
14	7.28	7.49	7.84	8.01	8.5	8.55	8.09	7.36
16	7.34	7.56	8	8.34	8.83	9.17	8.72	7.74
20	7.39	7.62	8.15	8.75	9.45	10.13	10.34	8.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.55	144.1°	3.7
8	41.1°	4.33	147.8°	4.67
10	39.4°	4.91	148.7°	5.51
12	37.7°	5.15	150.3°	6.08
14	37°	5.27	152.7°	6.41
16	36.6°	5.33	176.7°	6.98
20	36.8°	5.37	177.2°	7.73

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°	5.39	6.45	6.99	7.19	7.28	7.34	7.39
60°	5.68	6.69	7.15	7.37	7.49	7.56	7.62
75°	5.91	6.85	7.28	7.59	7.84	8.00	8.15
90°	5.82	6.86	7.36	7.63	8.01	8.34	8.75
110°	5.76	6.93	7.50	8.01	8.50	8.83	9.45
120°	5.61	6.79	7.39	7.93	8.55	9.17	10.13
135°	5.05	6.25	7.07	7.55	8.09	8.72	10.34
150°	4.27	5.39	6.36	7.01	7.36	7.74	8.80