Hydra: ORC Rating

GPH

659.7

OSN

644.4

LOA

7.785 m

Displacement

1467 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6387

Medium

0.8317

High

0.9295

Triple Offshore

Low

0.8178

Medium

1.0128

High

1.1307

Boat Specifications

Dimensions

Length overall: 7.785 m
Beam: 2.5 m
Draft: 1.83 m
Displacement: 1467 kg
Crew weight: 367 kg
Wetted surface: 13.29 m²

Sails

Mainsail: 21.69 m²
Genoa: 17.15 m²
Spinnaker: 42.29 m²
Asymmetric spinnaker: 44.11 m²

Design

Type: FIRST CLASS 8
Builder: Beneteau
Designer: Finot
Year built: 1986

Performance data

Polar CSV

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

6,41.2,4.571946,52,5.15,60,5.4,75,5.63,90,5.83,110,5.66,120,5.39,135,4.81,145,4.309334,150,4.08
8,39.8,5.349588,52,5.92,60,6.06,75,6.26,90,6.42,110,6.33,120,6.2,135,5.83,148.5,5.17217,150,5.09
10,37.1,5.679653,52,6.25,60,6.39,75,6.55,90,6.88,110,6.83,120,6.71,135,6.38,150,5.888973
12,36.2,5.78715,52,6.39,60,6.58,75,6.84,90,7.18,110,7.37,120,7.26,135,6.87,150,6.34,172,5.776214
14,36,5.82188,52,6.45,60,6.67,75,7.06,90,7.4,110,7.91,120,7.88,135,7.4,150,6.77,180,6.24
16,36.2,5.836718,52,6.48,60,6.72,75,7.17,90,7.59,110,8.39,120,8.59,135,8.02,150,7.24,180,6.64
20,36.9,5.877317,52,6.54,60,6.8,75,7.25,90,7.86,110,9.11,120,10.04,135,10.11,150,8.56,180,7.54

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.15	5.4	5.63	5.83	5.66	5.39	4.81	4.08
8	5.92	6.06	6.26	6.42	6.33	6.2	5.83	5.09
10	6.25	6.39	6.55	6.88	6.83	6.71	6.38	5.89
12	6.39	6.58	6.84	7.18	7.37	7.26	6.87	6.34
14	6.45	6.67	7.06	7.4	7.91	7.88	7.4	6.77
16	6.48	6.72	7.17	7.59	8.39	8.59	8.02	7.24
20	6.54	6.8	7.25	7.86	9.11	10.04	10.11	8.56

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.2°	3.44	145°	3.53
8	39.8°	4.11	148.5°	4.41
10	37.1°	4.53	150°	5.1
12	36.2°	4.67	172°	5.72
14	36°	4.71	180°	6.24
16	36.2°	4.71	180°	6.64
20	36.9°	4.7	180°	7.54

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°	5.15	5.92	6.25	6.39	6.45	6.48	6.54
60°	5.40	6.06	6.39	6.58	6.67	6.72	6.80
75°	5.63	6.26	6.55	6.84	7.06	7.17	7.25
90°	5.83	6.42	6.88	7.18	7.40	7.59	7.86
110°	5.66	6.33	6.83	7.37	7.91	8.39	9.11
120°	5.39	6.20	6.71	7.26	7.88	8.59	10.04
135°	4.81	5.83	6.38	6.87	7.40	8.02	10.11
150°	4.08	5.09	5.89	6.34	6.77	7.24	8.56