J&CO: ORC Rating

GPH

622.2

OSN

608.6

LOA

10.757 m

Displacement

4960 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6545

Medium

0.8725

High

0.9809

Triple Offshore

Low

0.8539

Medium

1.0842

High

1.195

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.13 m
Displacement: 4960 kg
Crew weight: 320 kg
Wetted surface: 26 m²

Sails

Mainsail: 37.09 m²
Genoa: 28.97 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 106.97 m²

Design

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

Performance data

Polar CSV

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

6,42.8,4.579342,52,5.12,60,5.49,75,6.02,90,6.26,110,6.06,120,5.76,135,5.15,144,4.672337,150,4.37
8,41.2,5.40925,52,6.1,60,6.45,75,6.93,90,7.13,110,7.04,120,6.87,135,6.36,148,5.577514,150,5.47
10,40.5,6.0494,52,6.75,60,6.96,75,7.25,90,7.5,110,7.5,120,7.43,135,7.15,148.5,6.53265,150,6.44
12,39.8,6.351822,52,7.03,60,7.22,75,7.41,90,7.75,110,7.9,120,7.86,135,7.59,150,7.07,150.2,7.064121
14,39.4,6.431712,52,7.13,60,7.34,75,7.6,90,7.92,110,8.29,120,8.31,135,8.05,150,7.42,174,6.485528
16,39.4,6.470535,52,7.17,60,7.39,75,7.74,90,8.07,110,8.64,120,8.62,135,8.56,150,7.73,177,7.01962
20,39.9,6.621781,52,7.25,60,7.45,75,7.85,90,8.36,110,9.1,120,9.42,135,9.71,150,8.53,178,7.724706

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.12	5.49	6.02	6.26	6.06	5.76	5.15	4.37
8	6.1	6.45	6.93	7.13	7.04	6.87	6.36	5.47
10	6.75	6.96	7.25	7.5	7.5	7.43	7.15	6.44
12	7.03	7.22	7.41	7.75	7.9	7.86	7.59	7.07
14	7.13	7.34	7.6	7.92	8.29	8.31	8.05	7.42
16	7.17	7.39	7.74	8.07	8.64	8.62	8.56	7.73
20	7.25	7.45	7.85	8.36	9.1	9.42	9.71	8.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.36	144°	3.78
8	41.2°	4.07	148°	4.73
10	40.5°	4.6	148.5°	5.57
12	39.8°	4.88	150.2°	6.13
14	39.4°	4.97	174°	6.45
16	39.4°	5	177°	7.01
20	39.9°	5.08	178°	7.72

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°	5.12	6.10	6.75	7.03	7.13	7.17	7.25
60°	5.49	6.45	6.96	7.22	7.34	7.39	7.45
75°	6.02	6.93	7.25	7.41	7.60	7.74	7.85
90°	6.26	7.13	7.50	7.75	7.92	8.07	8.36
110°	6.06	7.04	7.50	7.90	8.29	8.64	9.10
120°	5.76	6.87	7.43	7.86	8.31	8.62	9.42
135°	5.15	6.36	7.15	7.59	8.05	8.56	9.71
150°	4.37	5.47	6.44	7.07	7.42	7.73	8.53