BIGOUDEN ON ROAD: ORC Rating

GPH

666.4

OSN

645.4

LOA

8.5 m

Displacement

2515 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.606

Medium

0.8308

High

0.9576

Triple Offshore

Low

0.7814

Medium

1.0175

High

1.1533

Boat Specifications

Dimensions

Length overall: 8.5 m
Beam: 2.9 m
Draft: 2.11 m
Displacement: 2515 kg
Crew weight: 410 kg
Wetted surface: 18.36 m²

Sails

Mainsail: 25.94 m²
Genoa: 16.55 m²
Spinnaker: 57.88 m²
Asymmetric spinnaker: 50.24 m²

Design

Type: ELLIOTT 8.7
Builder: UNITECH NZ
Designer: ELLIOTT Gilles
Year built: 1999

Performance data

Polar CSV

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

6,42.4,4.306286,52,4.81,60,5.06,75,5.23,90,5.39,110,5.37,120,5.21,135,4.7,145.5,4.14985,150,3.94
8,40.5,5.036783,52,5.69,60,5.94,75,6.12,90,6.37,110,6.4,120,6.27,135,5.77,150,4.988306
10,40.1,5.699932,52,6.29,60,6.46,75,6.59,90,6.85,110,6.92,120,6.83,135,6.53,150,5.9,151.5,5.826013
12,38.2,6.006183,52,6.61,60,6.75,75,6.88,90,7.17,110,7.39,120,7.31,135,6.97,150,6.56,160,6.193515
14,37.5,6.100686,52,6.74,60,6.93,75,7.17,90,7.36,110,7.87,120,7.84,135,7.45,150,6.97,180,6.41
16,37.5,6.138501,52,6.79,60,7.01,75,7.4,90,7.6,110,8.27,120,8.41,135,7.99,150,7.4,180,6.83
20,37.5,6.176315,52,6.82,60,7.04,75,7.59,90,8.18,110,8.83,120,9.47,135,9.38,150,8.45,180,7.66

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.81	5.06	5.23	5.39	5.37	5.21	4.7	3.94
8	5.69	5.94	6.12	6.37	6.4	6.27	5.77	4.99
10	6.29	6.46	6.59	6.85	6.92	6.83	6.53	5.9
12	6.61	6.75	6.88	7.17	7.39	7.31	6.97	6.56
14	6.74	6.93	7.17	7.36	7.87	7.84	7.45	6.97
16	6.79	7.01	7.4	7.6	8.27	8.41	7.99	7.4
20	6.82	7.04	7.59	8.18	8.83	9.47	9.38	8.45

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.4°	3.18	145.5°	3.42
8	40.5°	3.83	150°	4.32
10	40.1°	4.36	151.5°	5.12
12	38.2°	4.72	160°	5.82
14	37.5°	4.84	180°	6.41
16	37.5°	4.87	180°	6.83
20	37.5°	4.9	180°	7.66

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°	4.81	5.69	6.29	6.61	6.74	6.79	6.82
60°	5.06	5.94	6.46	6.75	6.93	7.01	7.04
75°	5.23	6.12	6.59	6.88	7.17	7.40	7.59
90°	5.39	6.37	6.85	7.17	7.36	7.60	8.18
110°	5.37	6.40	6.92	7.39	7.87	8.27	8.83
120°	5.21	6.27	6.83	7.31	7.84	8.41	9.47
135°	4.70	5.77	6.53	6.97	7.45	7.99	9.38
150°	3.94	4.99	5.90	6.56	6.97	7.40	8.45