TRES MARES: ORC Rating

GPH

717.5

OSN

694

LOA

9.37 m

Displacement

3630 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5622

Medium

0.7706

High

0.8938

Triple Offshore

Low

0.7228

Medium

0.948

High

1.064

Boat Specifications

Dimensions

Length overall: 9.37 m
Beam: 3.24 m
Draft: 1.8 m
Displacement: 3630 kg
Crew weight: 385 kg
Wetted surface: 18.65 m²

Sails

Mainsail: 19.56 m²
Genoa: 25.79 m²
Spinnaker: 58.14 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 30.5 MOD
Builder: BENETEAU
Designer: J.BERRET
Year built: 1988
Stability index: 108.5

Performance data

Polar CSV

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

6,43.9,4.038575,52,4.47,60,4.72,75,4.89,90,4.82,110,4.9,120,4.76,135,4.33,147.3,3.814568,150,3.71
8,42,4.723171,52,5.28,60,5.56,75,5.79,90,5.82,110,5.96,120,5.82,135,5.33,150,4.69,151.1,4.64896
10,41.7,5.303774,52,5.9,60,6.12,75,6.28,90,6.41,110,6.52,120,6.45,135,6.16,150,5.56,152,5.458988
12,41.1,5.706222,52,6.23,60,6.4,75,6.55,90,6.7,110,6.85,120,6.81,135,6.6,150,6.24,158.3,5.930262
14,40.2,5.86544,52,6.41,60,6.57,75,6.74,90,6.83,110,7.16,120,7.13,135,6.92,150,6.62,173,6.12566
16,39.9,5.930926,52,6.48,60,6.67,75,6.91,90,7.02,110,7.43,120,7.47,135,7.26,150,6.92,178.1,6.49357
20,40.5,5.970495,52,6.51,60,6.74,75,7.12,90,7.4,110,7.72,120,8.02,135,7.96,150,7.57,179,7.071077

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.47	4.72	4.89	4.82	4.9	4.76	4.33	3.71
8	5.28	5.56	5.79	5.82	5.96	5.82	5.33	4.69
10	5.9	6.12	6.28	6.41	6.52	6.45	6.16	5.56
12	6.23	6.4	6.55	6.7	6.85	6.81	6.6	6.24
14	6.41	6.57	6.74	6.83	7.16	7.13	6.92	6.62
16	6.48	6.67	6.91	7.02	7.43	7.47	7.26	6.92
20	6.51	6.74	7.12	7.4	7.72	8.02	7.96	7.57

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	2.91	147.3°	3.21
8	42°	3.51	151.1°	4.07
10	41.7°	3.96	152°	4.82
12	41.1°	4.3	158.3°	5.51
14	40.2°	4.48	173°	6.08
16	39.9°	4.55	178.1°	6.49
20	40.5°	4.54	179°	7.07

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°	4.47	5.28	5.90	6.23	6.41	6.48	6.51
60°	4.72	5.56	6.12	6.40	6.57	6.67	6.74
75°	4.89	5.79	6.28	6.55	6.74	6.91	7.12
90°	4.82	5.82	6.41	6.70	6.83	7.02	7.40
110°	4.90	5.96	6.52	6.85	7.16	7.43	7.72
120°	4.76	5.82	6.45	6.81	7.13	7.47	8.02
135°	4.33	5.33	6.16	6.60	6.92	7.26	7.96
150°	3.71	4.69	5.56	6.24	6.62	6.92	7.57