MACHTNIX: ORC Rating

GPH

673

OSN

653.8

LOA

7.79 m

Displacement

1518 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6991

Medium

0.9297

High

1.0494

Triple Offshore

Low

0.8922

Medium

1.1223

High

1.2579

Boat Specifications

Dimensions

Length overall: 7.79 m
Beam: 2.5 m
Draft: 1.84 m
Displacement: 1518 kg
Crew weight: 411 kg
Wetted surface: 14.08 m²

Sails

Mainsail: 21.86 m²
Genoa: 18.64 m²
Spinnaker: 44.2 m²
Asymmetric spinnaker: 0 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.

6,40.8,4.531073,52,5.09,60,5.31,75,5.46,90,5.39,110,5.3,120,5.13,135,4.63,146.4,4.009983,150,3.85
8,39.5,5.326424,52,5.88,60,6.01,75,6.09,90,6.13,110,6.15,120,6.04,135,5.61,150,4.85,150.9,4.806745
10,36.4,5.65292,52,6.22,60,6.34,75,6.44,90,6.54,110,6.63,120,6.52,135,6.23,150,5.7,153.1,5.573014
12,35.5,5.773136,52,6.36,60,6.53,75,6.77,90,6.81,110,7.15,120,7.03,135,6.66,150,6.27,169.4,5.748089
14,35,5.810887,52,6.43,60,6.63,75,7,90,7.2,110,7.62,120,7.6,135,7.16,150,6.67,180,6.18
16,35.1,5.842451,52,6.47,60,6.69,75,7.12,90,7.51,110,7.93,120,8.22,135,7.73,150,7.14,180,6.56
20,35.5,5.883686,52,6.54,60,6.77,75,7.22,90,7.81,110,8.53,120,9.23,135,9.34,150,8.26,180,7.44

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.09	5.31	5.46	5.39	5.3	5.13	4.63	3.85
8	5.88	6.01	6.09	6.13	6.15	6.04	5.61	4.85
10	6.22	6.34	6.44	6.54	6.63	6.52	6.23	5.7
12	6.36	6.53	6.77	6.81	7.15	7.03	6.66	6.27
14	6.43	6.63	7	7.2	7.62	7.6	7.16	6.67
16	6.47	6.69	7.12	7.51	7.93	8.22	7.73	7.14
20	6.54	6.77	7.22	7.81	8.53	9.23	9.34	8.26

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	40.8°	3.43	146.4°	3.34
8	39.5°	4.11	150.9°	4.2
10	36.4°	4.55	153.1°	4.97
12	35.5°	4.7	169.4°	5.65
14	35°	4.76	180°	6.18
16	35.1°	4.78	180°	6.56
20	35.5°	4.79	180°	7.44

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°	5.09	5.88	6.22	6.36	6.43	6.47	6.54
60°	5.31	6.01	6.34	6.53	6.63	6.69	6.77
75°	5.46	6.09	6.44	6.77	7.00	7.12	7.22
90°	5.39	6.13	6.54	6.81	7.20	7.51	7.81
110°	5.30	6.15	6.63	7.15	7.62	7.93	8.53
120°	5.13	6.04	6.52	7.03	7.60	8.22	9.23
135°	4.63	5.61	6.23	6.66	7.16	7.73	9.34
150°	3.85	4.85	5.70	6.27	6.67	7.14	8.26