LEADING EDGE: ORC Rating

GPH

611.7

OSN

596.3

LOA

10.79 m

Displacement

4613 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.679

Medium

0.8991

High

1.0084

Triple Offshore

Low

0.8735

Medium

1.0998

High

1.2119

Boat Specifications

Dimensions

Length overall: 10.79 m
Beam: 3.65 m
Draft: 2.12 m
Displacement: 4613 kg
Crew weight: 603 kg
Wetted surface: 25 m²

Sails

Mainsail: 32.94 m²
Genoa: 46.35 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 120.83 m²

Design

Type: J-35
Builder: TILLOTSON-PEARSON
Designer: Johnstone
Year built: 1983

Performance data

Polar CSV

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

6,42,4.938472,52,5.55,60,5.84,75,6.08,90,6,110,5.89,120,5.74,135,5.08,145,4.553489,150,4.31
8,40.9,5.821234,52,6.5,60,6.7,75,6.84,90,6.83,110,6.93,120,6.84,135,6.35,148,5.494971,150,5.38
10,39,6.343725,52,6.95,60,7.09,75,7.2,90,7.22,110,7.41,120,7.36,135,7.1,147.8,6.546968,150,6.39
12,37.5,6.491433,52,7.13,60,7.29,75,7.47,90,7.51,110,7.82,120,7.82,135,7.53,150,7.02,150.5,6.98565
14,36.8,6.581483,52,7.22,60,7.4,75,7.69,90,7.81,110,8.12,120,8.28,135,8.01,150,7.33,174,6.425198
16,36.4,6.621992,52,7.27,60,7.48,75,7.83,90,8.08,110,8.34,120,8.68,135,8.51,150,7.63,177,6.919483
20,36.4,6.659264,52,7.3,60,7.53,75,7.98,90,8.44,110,8.76,120,9.24,135,9.69,150,8.44,177,7.590402

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.55	5.84	6.08	6	5.89	5.74	5.08	4.31
8	6.5	6.7	6.84	6.83	6.93	6.84	6.35	5.38
10	6.95	7.09	7.2	7.22	7.41	7.36	7.1	6.39
12	7.13	7.29	7.47	7.51	7.82	7.82	7.53	7.02
14	7.22	7.4	7.69	7.81	8.12	8.28	8.01	7.33
16	7.27	7.48	7.83	8.08	8.34	8.68	8.51	7.63
20	7.3	7.53	7.98	8.44	8.76	9.24	9.69	8.44

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.67	145°	3.73
8	40.9°	4.4	148°	4.66
10	39°	4.93	147.8°	5.54
12	37.5°	5.15	150.5°	6.08
14	36.8°	5.27	174°	6.39
16	36.4°	5.33	177°	6.91
20	36.4°	5.36	177°	7.58

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°	5.55	6.50	6.95	7.13	7.22	7.27	7.30
60°	5.84	6.70	7.09	7.29	7.40	7.48	7.53
75°	6.08	6.84	7.20	7.47	7.69	7.83	7.98
90°	6.00	6.83	7.22	7.51	7.81	8.08	8.44
110°	5.89	6.93	7.41	7.82	8.12	8.34	8.76
120°	5.74	6.84	7.36	7.82	8.28	8.68	9.24
135°	5.08	6.35	7.10	7.53	8.01	8.51	9.69
150°	4.31	5.38	6.39	7.02	7.33	7.63	8.44