MARIE DE: ORC Rating

GPH

731

OSN

706.4

LOA

8.75 m

Displacement

3451 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5581

Medium

0.7638

High

0.878

Triple Offshore

Low

0.714

Medium

0.9295

High

1.0332

Boat Specifications

Dimensions

Length overall: 8.75 m
Beam: 2.86 m
Draft: 1.7 m
Displacement: 3451 kg
Crew weight: 550 kg
Wetted surface: 18.23 m²

Sails

Mainsail: 15.76 m²
Genoa: 28.26 m²
Spinnaker: 64.98 m²
Asymmetric spinnaker: 0 m²

Design

Type: First 30
Builder: Beneteau
Designer: Mauric
Year built: 1977
Stability index: 125.1

Performance data

Polar CSV

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

6,43,3.992596,52,4.44,60,4.66,75,4.78,90,4.69,110,4.83,120,4.68,135,4.24,147.3,3.731384,150,3.62
8,41.4,4.719301,52,5.27,60,5.49,75,5.6,90,5.65,110,5.81,120,5.7,135,5.24,150,4.6,151.4,4.544507
10,40,5.221629,52,5.78,60,5.95,75,6.07,90,6.16,110,6.32,120,6.27,135,6.02,150,5.47,151.8,5.378397
12,38.7,5.496967,52,6.05,60,6.19,75,6.33,90,6.4,110,6.63,120,6.62,135,6.43,150,6.09,160.4,5.74275
14,38.2,5.624434,52,6.19,60,6.34,75,6.5,90,6.55,110,6.87,120,6.91,135,6.75,150,6.45,173,5.964458
16,37.9,5.677468,52,6.26,60,6.43,75,6.64,90,6.73,110,7.06,120,7.17,135,7.05,150,6.74,177.2,6.317542
20,38.1,5.743803,52,6.32,60,6.51,75,6.8,90,7,110,7.31,120,7.58,135,7.64,150,7.3,179,6.861045

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.44	4.66	4.78	4.69	4.83	4.68	4.24	3.62
8	5.27	5.49	5.6	5.65	5.81	5.7	5.24	4.6
10	5.78	5.95	6.07	6.16	6.32	6.27	6.02	5.47
12	6.05	6.19	6.33	6.4	6.63	6.62	6.43	6.09
14	6.19	6.34	6.5	6.55	6.87	6.91	6.75	6.45
16	6.26	6.43	6.64	6.73	7.06	7.17	7.05	6.74
20	6.32	6.51	6.8	7	7.31	7.58	7.64	7.3

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	2.92	147.3°	3.14
8	41.4°	3.54	151.4°	3.99
10	40°	4	151.8°	4.74
12	38.7°	4.29	160.4°	5.41
14	38.2°	4.42	173°	5.92
16	37.9°	4.48	177.2°	6.31
20	38.1°	4.52	179°	6.86

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°	4.44	5.27	5.78	6.05	6.19	6.26	6.32
60°	4.66	5.49	5.95	6.19	6.34	6.43	6.51
75°	4.78	5.60	6.07	6.33	6.50	6.64	6.80
90°	4.69	5.65	6.16	6.40	6.55	6.73	7.00
110°	4.83	5.81	6.32	6.63	6.87	7.06	7.31
120°	4.68	5.70	6.27	6.62	6.91	7.17	7.58
135°	4.24	5.24	6.02	6.43	6.75	7.05	7.64
150°	3.62	4.60	5.47	6.09	6.45	6.74	7.30