ORC Rating | Offwind

GPH

699.7

OSN

689.2

LOA

7.5 m

Displacement

798 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6054

Medium

0.7587

High

0.842

Triple Offshore

Low

0.784

Medium

0.9498

High

1.044

Boat Specifications

Dimensions

Length overall: 7.5 m
Beam: 1.86 m
Draft: 1.16 m
Displacement: 798 kg
Crew weight: 240 kg
Wetted surface: 9.66 m²

Sails

Mainsail: 17.38 m²
Genoa: 8.04 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 40.07 m²

Design

Type: M 7.50
Builder: BG Race
Designer: G.Breteche
Year built: 1987

Performance data

Polar CSV

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

6,43.5,4.315013,52,4.8,60,5.12,75,5.4,90,5.58,110,5.68,120,5.51,135,4.81,143,4.357432,150,4.02
8,41.2,4.957371,52,5.59,60,5.82,75,6.01,90,6.07,110,6.34,120,6.29,135,5.9,146.5,5.300486,150,5.1
10,41.2,5.209891,52,5.8,60,6.03,75,6.31,90,6.43,110,6.76,120,6.89,135,6.53,150,5.90052
12,41.4,5.265887,52,5.86,60,6.1,75,6.49,90,6.8,110,7.09,120,7.39,135,7.21,149.2,6.484587,150,6.43
14,41.6,5.349037,52,5.91,60,6.12,75,6.58,90,7.06,110,7.4,120,7.8,135,8.01,150,6.95,177,6.07833
16,42.4,5.40317,52,5.96,60,6.22,75,6.61,90,7.2,110,7.69,120,8.22,135,8.99,143,8.414352,150,7.76
20,45,5.345727,52,5.86,60,6.18,75,6.76,90,7.28,110,8.29,120,9.04,135,10.4,144.2,10.701994,150,10.02

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.8	5.12	5.4	5.58	5.68	5.51	4.81	4.02
8	5.59	5.82	6.01	6.07	6.34	6.29	5.9	5.1
10	5.8	6.03	6.31	6.43	6.76	6.89	6.53	5.9
12	5.86	6.1	6.49	6.8	7.09	7.39	7.21	6.43
14	5.91	6.12	6.58	7.06	7.4	7.8	8.01	6.95
16	5.96	6.22	6.61	7.2	7.69	8.22	8.99	7.76
20	5.86	6.18	6.76	7.28	8.29	9.04	10.4	10.02

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.13	143°	3.48
8	41.2°	3.73	146.5°	4.42
10	41.2°	3.92	150°	5.11
12	41.4°	3.95	149.2°	5.57
14	41.6°	4	177°	6.07
16	42.4°	3.99	143°	6.72
20	45°	3.78	144.2°	8.68

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°	4.80	5.59	5.80	5.86	5.91	5.96	5.86
60°	5.12	5.82	6.03	6.10	6.12	6.22	6.18
75°	5.40	6.01	6.31	6.49	6.58	6.61	6.76
90°	5.58	6.07	6.43	6.80	7.06	7.20	7.28
110°	5.68	6.34	6.76	7.09	7.40	7.69	8.29
120°	5.51	6.29	6.89	7.39	7.80	8.22	9.04
135°	4.81	5.90	6.53	7.21	8.01	8.99	10.40
150°	4.02	5.10	5.90	6.43	6.95	7.76	10.02