LUNA: ORC Rating

GPH

650

OSN

631

LOA

9.14 m

Displacement

2750 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6293

Medium

0.8455

High

0.9628

Triple Offshore

Low

0.8116

Medium

1.0389

High

1.1682

Boat Specifications

Dimensions

Length overall: 9.14 m
Beam: 3.04 m
Draft: 1.82 m
Displacement: 2750 kg
Crew weight: 513 kg
Wetted surface: 18.7 m²

Sails

Mainsail: 27.86 m²
Genoa: 18.73 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 94.67 m²

Design

Type: J 92
Builder: J-COMPOSITE
Designer: JOHNSTONE Rodney
Year built: 1992
Stability index: 108.4

Performance data

Polar CSV

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

6,43.8,4.36433,52,4.83,60,5.1,75,5.3,90,5.65,110,5.78,120,5.64,135,5.05,144.7,4.570308,150,4.31
8,42.3,5.191777,52,5.77,60,6.04,75,6.23,90,6.57,110,6.71,120,6.64,135,6.25,147.8,5.518834,150,5.4
10,40.8,5.786035,52,6.37,60,6.54,75,6.67,90,6.88,110,7.19,120,7.17,135,6.9,149.2,6.356525,150,6.31
12,38.7,6.086385,52,6.66,60,6.81,75,6.96,90,7.07,110,7.58,120,7.71,135,7.42,150,6.84,150.9,6.786666
14,38.1,6.188567,52,6.8,60,6.98,75,7.22,90,7.3,110,7.87,120,8.21,135,8.01,150,7.18,169.4,6.368679
16,37.8,6.226626,52,6.85,60,7.07,75,7.45,90,7.64,110,8.14,120,8.58,135,8.69,150,7.56,174.8,6.727688
20,37.6,6.28558,52,6.9,60,7.11,75,7.67,90,8.18,110,8.65,120,9.32,135,10.67,140.1,10.284617,150,9.11

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.83	5.1	5.3	5.65	5.78	5.64	5.05	4.31
8	5.77	6.04	6.23	6.57	6.71	6.64	6.25	5.4
10	6.37	6.54	6.67	6.88	7.19	7.17	6.9	6.31
12	6.66	6.81	6.96	7.07	7.58	7.71	7.42	6.84
14	6.8	6.98	7.22	7.3	7.87	8.21	8.01	7.18
16	6.85	7.07	7.45	7.64	8.14	8.58	8.69	7.56
20	6.9	7.11	7.67	8.18	8.65	9.32	10.67	9.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	3.15	144.7°	3.73
8	42.3°	3.84	147.8°	4.67
10	40.8°	4.38	149.2°	5.46
12	38.7°	4.75	150.9°	5.93
14	38.1°	4.87	169.4°	6.26
16	37.8°	4.92	174.8°	6.7
20	37.6°	4.98	140.1°	7.89

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°	4.83	5.77	6.37	6.66	6.80	6.85	6.90
60°	5.10	6.04	6.54	6.81	6.98	7.07	7.11
75°	5.30	6.23	6.67	6.96	7.22	7.45	7.67
90°	5.65	6.57	6.88	7.07	7.30	7.64	8.18
110°	5.78	6.71	7.19	7.58	7.87	8.14	8.65
120°	5.64	6.64	7.17	7.71	8.21	8.58	9.32
135°	5.05	6.25	6.90	7.42	8.01	8.69	10.67
150°	4.31	5.40	6.31	6.84	7.18	7.56	9.11