GWEZ GWERN: ORC Rating

GPH

703

OSN

680.5

LOA

9.514 m

Displacement

4665 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5817

Medium

0.7907

High

0.9148

Triple Offshore

Low

0.744

Medium

0.964

High

1.0779

Boat Specifications

Dimensions

Length overall: 9.514 m
Beam: 3.26 m
Draft: 1.92 m
Displacement: 4665 kg
Crew weight: 502 kg
Wetted surface: 21.92 m²

Sails

Mainsail: 21.08 m²
Genoa: 34.44 m²
Spinnaker: 78.6 m²
Asymmetric spinnaker: 0 m²

Design

Type: SYMPHONIE Q
Builder: JEANNEAU SA
Designer: BRIAND Philippe
Year built: 1978
Stability index: 126.3

Performance data

Polar CSV

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

6,42.4,4.103159,52,4.6,60,4.84,75,5,90,4.92,110,5.02,120,4.89,135,4.47,147.5,3.948345,150,3.84
8,40.9,4.789288,52,5.41,60,5.68,75,5.87,90,5.9,110,6.06,120,5.94,135,5.47,150,4.82,151.6,4.751898
10,41.1,5.414276,52,6.01,60,6.18,75,6.32,90,6.44,110,6.56,120,6.51,135,6.26,150,5.69,151.6,5.604511
12,39.9,5.787541,52,6.3,60,6.44,75,6.56,90,6.7,110,6.88,120,6.84,135,6.65,150,6.32,159.2,6.001119
14,38.8,5.915277,52,6.47,60,6.61,75,6.76,90,6.82,110,7.17,120,7.16,135,6.96,150,6.67,173.9,6.18502
16,38.4,5.984483,52,6.56,60,6.72,75,6.92,90,7.01,110,7.4,120,7.49,135,7.3,150,6.96,179,6.530995
20,38.4,6.022763,52,6.61,60,6.81,75,7.17,90,7.38,110,7.67,120,7.95,135,7.95,150,7.59,179,7.09108

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.6	4.84	5	4.92	5.02	4.89	4.47	3.84
8	5.41	5.68	5.87	5.9	6.06	5.94	5.47	4.82
10	6.01	6.18	6.32	6.44	6.56	6.51	6.26	5.69
12	6.3	6.44	6.56	6.7	6.88	6.84	6.65	6.32
14	6.47	6.61	6.76	6.82	7.17	7.16	6.96	6.67
16	6.56	6.72	6.92	7.01	7.4	7.49	7.3	6.96
20	6.61	6.81	7.17	7.38	7.67	7.95	7.95	7.59

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.03	147.5°	3.33
8	40.9°	3.62	151.6°	4.18
10	41.1°	4.08	151.6°	4.93
12	39.9°	4.44	159.2°	5.61
14	38.8°	4.61	173.9°	6.15
16	38.4°	4.69	179°	6.53
20	38.4°	4.72	179°	7.09

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°	4.60	5.41	6.01	6.30	6.47	6.56	6.61
60°	4.84	5.68	6.18	6.44	6.61	6.72	6.81
75°	5.00	5.87	6.32	6.56	6.76	6.92	7.17
90°	4.92	5.90	6.44	6.70	6.82	7.01	7.38
110°	5.02	6.06	6.56	6.88	7.17	7.40	7.67
120°	4.89	5.94	6.51	6.84	7.16	7.49	7.95
135°	4.47	5.47	6.26	6.65	6.96	7.30	7.95
150°	3.84	4.82	5.69	6.32	6.67	6.96	7.59