LUCKY EIGHTS: ORC Rating

GPH

569

OSN

557.2

LOA

12.405 m

Displacement

5698 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.695

Medium

0.9508

High

1.0841

Triple Offshore

Low

0.9223

Medium

1.1891

High

1.3356

Boat Specifications

Dimensions

Length overall: 12.405 m
Beam: 3.48 m
Draft: 2.1 m
Displacement: 5698 kg
Crew weight: 831 kg
Wetted surface: 30.89 m²

Sails

Mainsail: 46.18 m²
Genoa: 32.59 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 121.14 m²

Design

Type: J-124
Builder: TPI
Designer: JOHNSTONE
Year built: 2005

Performance data

Polar CSV

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

6,46.5,5.229863,52,5.72,60,6.25,75,6.85,90,7.03,110,6.66,120,6.21,135,5.43,143,4.945936,150,4.56
8,42,5.907328,52,6.83,60,7.3,75,7.73,90,7.89,110,7.72,120,7.44,135,6.78,146,6.019028,150,5.76
10,41.1,6.714764,52,7.43,60,7.66,75,8.03,90,8.31,110,8.23,120,8.1,135,7.73,148,6.992528,150,6.85
12,39.4,6.988178,52,7.73,60,7.94,75,8.22,90,8.64,110,8.75,120,8.67,135,8.27,150,7.65,150.5,7.617575
14,38.6,7.07595,52,7.84,60,8.08,75,8.44,90,8.9,110,9.3,120,9.29,135,8.88,150,8.08,151.5,7.98801
16,38.2,7.113254,52,7.9,60,8.15,75,8.63,90,9.13,110,9.82,120,9.8,135,9.58,150,8.49,175.5,7.523191
20,38.4,7.311532,52,8.03,60,8.27,75,8.8,90,9.51,110,10.59,120,10.93,135,11.4,143,10.61811,150,9.79

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.72	6.25	6.85	7.03	6.66	6.21	5.43	4.56
8	6.83	7.3	7.73	7.89	7.72	7.44	6.78	5.76
10	7.43	7.66	8.03	8.31	8.23	8.1	7.73	6.85
12	7.73	7.94	8.22	8.64	8.75	8.67	8.27	7.65
14	7.84	8.08	8.44	8.9	9.3	9.29	8.88	8.08
16	7.9	8.15	8.63	9.13	9.82	9.8	9.58	8.49
20	8.03	8.27	8.8	9.51	10.59	10.93	11.4	9.79

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.5°	3.6	143°	3.95
8	42°	4.39	146°	4.99
10	41.1°	5.06	148°	5.93
12	39.4°	5.4	150.5°	6.63
14	38.6°	5.53	151.5°	7.02
16	38.2°	5.59	175.5°	7.5
20	38.4°	5.73	143°	8.48

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°	5.72	6.83	7.43	7.73	7.84	7.90	8.03
60°	6.25	7.30	7.66	7.94	8.08	8.15	8.27
75°	6.85	7.73	8.03	8.22	8.44	8.63	8.80
90°	7.03	7.89	8.31	8.64	8.90	9.13	9.51
110°	6.66	7.72	8.23	8.75	9.30	9.82	10.59
120°	6.21	7.44	8.10	8.67	9.29	9.80	10.93
135°	5.43	6.78	7.73	8.27	8.88	9.58	11.40
150°	4.56	5.76	6.85	7.65	8.08	8.49	9.79