Libra: ORC Rating

GPH

639

OSN

617.8

LOA

11.86 m

Displacement

6359 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6139

Medium

0.8529

High

0.9785

Triple Offshore

Low

0.7988

Medium

1.0718

High

1.2099

Boat Specifications

Dimensions

Length overall: 11.86 m
Beam: 3.9 m
Draft: 1.93 m
Displacement: 6359 kg
Crew weight: 510 kg
Wetted surface: 30.68 m²

Sails

Mainsail: 36.18 m²
Genoa: 34.95 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 93.28 m²

Design

Type: Sun Odyssey 39i
Builder: Jeanneau
Designer: Lombard
Year built: 2009
Stability index: 118.8

Performance data

Polar CSV

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

6,45.4,4.457718,52,4.89,60,5.22,75,5.46,90,5.47,110,5.53,120,5.34,135,4.77,144.2,4.302991,150,4.03
8,43.2,5.336306,52,5.93,60,6.25,75,6.49,90,6.62,110,6.76,120,6.57,135,6,146.9,5.347857,150,5.18
10,41.8,5.982755,52,6.67,60,6.95,75,7.17,90,7.38,110,7.53,120,7.41,135,6.96,147.5,6.307866,150,6.14
12,40.8,6.406911,52,7.13,60,7.38,75,7.59,90,7.78,110,8.02,120,7.95,135,7.61,148,7.039695,150,6.9
14,40.6,6.598432,52,7.34,60,7.61,75,7.87,90,7.97,110,8.44,120,8.42,135,8.1,148.9,7.485982,150,7.41
16,40.6,6.664284,52,7.43,60,7.71,75,8.08,90,8.23,110,8.81,120,8.89,135,8.58,150,7.79,171.2,6.941715
20,41.2,6.671851,52,7.45,60,7.77,75,8.27,90,8.7,110,9.27,120,9.8,135,9.62,150,8.49,175.4,7.785077

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.89	5.22	5.46	5.47	5.53	5.34	4.77	4.03
8	5.93	6.25	6.49	6.62	6.76	6.57	6	5.18
10	6.67	6.95	7.17	7.38	7.53	7.41	6.96	6.14
12	7.13	7.38	7.59	7.78	8.02	7.95	7.61	6.9
14	7.34	7.61	7.87	7.97	8.44	8.42	8.1	7.41
16	7.43	7.71	8.08	8.23	8.81	8.89	8.58	7.79
20	7.45	7.77	8.27	8.7	9.27	9.8	9.62	8.49

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.4°	3.13	144.2°	3.49
8	43.2°	3.89	146.9°	4.48
10	41.8°	4.46	147.5°	5.32
12	40.8°	4.85	148°	5.97
14	40.6°	5.01	148.9°	6.41
16	40.6°	5.06	171.2°	6.86
20	41.2°	5.02	175.4°	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°	4.89	5.93	6.67	7.13	7.34	7.43	7.45
60°	5.22	6.25	6.95	7.38	7.61	7.71	7.77
75°	5.46	6.49	7.17	7.59	7.87	8.08	8.27
90°	5.47	6.62	7.38	7.78	7.97	8.23	8.70
110°	5.53	6.76	7.53	8.02	8.44	8.81	9.27
120°	5.34	6.57	7.41	7.95	8.42	8.89	9.80
135°	4.77	6.00	6.96	7.61	8.10	8.58	9.62
150°	4.03	5.18	6.14	6.90	7.41	7.79	8.49