MACHTNIX: ORC Rating

GPH

678.5

OSN

659

LOA

7.79 m

Displacement

1520 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6133

Medium

0.8184

High

0.9245

Triple Offshore

Low

0.7853

Medium

0.9906

High

1.1088

Boat Specifications

Dimensions

Length overall: 7.79 m
Beam: 2.5 m
Draft: 1.84 m
Displacement: 1520 kg
Crew weight: 411 kg
Wetted surface: 13.65 m²

Sails

Mainsail: 21.86 m²
Genoa: 18.64 m²
Spinnaker: 44.41 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST CLASS 8
Builder: BENETEAU
Designer: FINOT
Year built: 1982
Stability index: 96.3

Performance data

Polar CSV

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

6,41.4,4.479337,52,5.04,60,5.28,75,5.44,90,5.36,110,5.27,120,5.09,135,4.59,146,3.992581,150,3.82
8,40.2,5.276278,52,5.83,60,5.98,75,6.08,90,6.11,110,6.14,120,6.03,135,5.58,150,4.83,150.7,4.793197
10,37.2,5.624396,52,6.18,60,6.31,75,6.42,90,6.52,110,6.62,120,6.52,135,6.22,150,5.7,153.2,5.545685
12,36.3,5.744928,52,6.33,60,6.5,75,6.73,90,6.8,110,7.13,120,7.03,135,6.65,150,6.27,164,5.856886
14,35.8,5.794858,52,6.4,60,6.6,75,6.96,90,7.17,110,7.59,120,7.59,135,7.16,150,6.68,177.5,6.155859
16,35.8,5.819517,52,6.43,60,6.65,75,7.08,90,7.48,110,7.89,120,8.19,135,7.73,150,7.15,178.1,6.533592
20,36.3,5.881417,52,6.51,60,6.74,75,7.19,90,7.78,110,8.44,120,9.14,135,9.32,150,8.29,176.3,7.425478

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.04	5.28	5.44	5.36	5.27	5.09	4.59	3.82
8	5.83	5.98	6.08	6.11	6.14	6.03	5.58	4.83
10	6.18	6.31	6.42	6.52	6.62	6.52	6.22	5.7
12	6.33	6.5	6.73	6.8	7.13	7.03	6.65	6.27
14	6.4	6.6	6.96	7.17	7.59	7.59	7.16	6.68
16	6.43	6.65	7.08	7.48	7.89	8.19	7.73	7.15
20	6.51	6.74	7.19	7.78	8.44	9.14	9.32	8.29

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.4°	3.36	146°	3.31
8	40.2°	4.03	150.7°	4.18
10	37.2°	4.48	153.2°	4.95
12	36.3°	4.63	164°	5.63
14	35.8°	4.7	177.5°	6.15
16	35.8°	4.72	178.1°	6.53
20	36.3°	4.74	176.3°	7.41

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°	5.04	5.83	6.18	6.33	6.40	6.43	6.51
60°	5.28	5.98	6.31	6.50	6.60	6.65	6.74
75°	5.44	6.08	6.42	6.73	6.96	7.08	7.19
90°	5.36	6.11	6.52	6.80	7.17	7.48	7.78
110°	5.27	6.14	6.62	7.13	7.59	7.89	8.44
120°	5.09	6.03	6.52	7.03	7.59	8.19	9.14
135°	4.59	5.58	6.22	6.65	7.16	7.73	9.32
150°	3.82	4.83	5.70	6.27	6.68	7.15	8.29