JJFLASH: ORC Rating

GPH

599.4

OSN

585.1

LOA

10.75 m

Displacement

4759 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6973

Medium

0.911

High

1.0151

Triple Offshore

Low

0.8982

Medium

1.1195

High

1.2277

Boat Specifications

Dimensions

Length overall: 10.75 m
Beam: 3.52 m
Draft: 2.12 m
Displacement: 4759 kg
Crew weight: 611 kg
Wetted surface: 25.58 m²

Sails

Mainsail: 38.39 m²
Genoa: 41.73 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 107.94 m²

Design

Type: J/109
Builder: J Composite
Designer: Alan Johnstone
Year built: 2001
Stability index: 119

Performance data

Polar CSV

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

6,42.4,5.091709,52,5.71,60,6.09,75,6.41,90,6.42,110,5.98,120,5.76,135,5.19,144.2,4.697534,150,4.4
8,40.6,5.979417,52,6.63,60,6.91,75,7.12,90,7.17,110,6.99,120,6.88,135,6.41,147.8,5.696099,150,5.56
10,38.4,6.367286,52,7.05,60,7.21,75,7.46,90,7.58,110,7.54,120,7.49,135,7.19,149.2,6.566081,150,6.51
12,37.6,6.525391,52,7.23,60,7.41,75,7.65,90,7.89,110,7.93,120,7.96,135,7.7,150,7.14,150.1,7.128877
14,37.5,6.630085,52,7.32,60,7.51,75,7.79,90,8.11,110,8.24,120,8.39,135,8.18,150,7.51,150.5,7.479701
16,37.2,6.678971,52,7.38,60,7.58,75,7.89,90,8.26,110,8.47,120,8.8,135,8.68,150,7.85,174.5,7.052468
20,37.6,6.739959,52,7.43,60,7.65,75,8.04,90,8.53,110,9.11,120,9.48,135,10,150,8.57,175.7,7.781905

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.71	6.09	6.41	6.42	5.98	5.76	5.19	4.4
8	6.63	6.91	7.12	7.17	6.99	6.88	6.41	5.56
10	7.05	7.21	7.46	7.58	7.54	7.49	7.19	6.51
12	7.23	7.41	7.65	7.89	7.93	7.96	7.7	7.14
14	7.32	7.51	7.79	8.11	8.24	8.39	8.18	7.51
16	7.38	7.58	7.89	8.26	8.47	8.8	8.68	7.85
20	7.43	7.65	8.04	8.53	9.11	9.48	10	8.57

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.76	144.2°	3.81
8	40.6°	4.54	147.8°	4.82
10	38.4°	4.99	149.2°	5.64
12	37.6°	5.17	150.1°	6.18
14	37.5°	5.26	150.5°	6.51
16	37.2°	5.32	174.5°	7.02
20	37.6°	5.34	175.7°	7.76

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°	5.71	6.63	7.05	7.23	7.32	7.38	7.43
60°	6.09	6.91	7.21	7.41	7.51	7.58	7.65
75°	6.41	7.12	7.46	7.65	7.79	7.89	8.04
90°	6.42	7.17	7.58	7.89	8.11	8.26	8.53
110°	5.98	6.99	7.54	7.93	8.24	8.47	9.11
120°	5.76	6.88	7.49	7.96	8.39	8.80	9.48
135°	5.19	6.41	7.19	7.70	8.18	8.68	10.00
150°	4.40	5.56	6.51	7.14	7.51	7.85	8.57