Dictateur: ORC Rating

GPH

673.8

OSN

654.2

LOA

9.61 m

Displacement

4060 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6007

Medium

0.8173

High

0.9342

Triple Offshore

Low

0.7752

Medium

1.0075

High

1.1201

Boat Specifications

Dimensions

Length overall: 9.61 m
Beam: 3.21 m
Draft: 1.95 m
Displacement: 4060 kg
Crew weight: 160 kg
Wetted surface: 22.65 m²

Sails

Mainsail: 25.34 m²
Genoa: 29.59 m²
Spinnaker: 70.17 m²
Asymmetric spinnaker: 70.31 m²

Design

Type: First 31.7
Builder: Beneteau
Designer: Beneteau
Year built: 1998

Performance data

Polar CSV

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

6,42.8,4.279504,52,4.79,60,5.06,75,5.28,90,5.24,110,5.31,120,5.16,135,4.66,146,4.089079,150,3.92
8,40.9,5.014199,52,5.66,60,5.94,75,6.17,90,6.26,110,6.38,120,6.24,135,5.71,150,4.953665
10,40.5,5.615421,52,6.3,60,6.52,75,6.69,90,6.82,110,6.94,120,6.87,135,6.57,150,5.86,151,5.808239
12,40.1,5.97447,52,6.61,60,6.8,75,6.96,90,7.02,110,7.28,120,7.24,135,7.02,150,6.61,157,6.30089
14,39.8,6.091501,52,6.72,60,6.92,75,7.14,90,7.24,110,7.58,120,7.61,135,7.38,150,7.02,180,6.4
16,39.4,6.108185,52,6.76,60,6.97,75,7.26,90,7.45,110,7.78,120,7.99,135,7.78,150,7.35,180,6.87
20,40.1,6.079056,52,6.75,60,6.98,75,7.34,90,7.79,110,8.13,120,8.53,135,8.67,150,8.14,180,7.53

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.79	5.06	5.28	5.24	5.31	5.16	4.66	3.92
8	5.66	5.94	6.17	6.26	6.38	6.24	5.71	4.95
10	6.3	6.52	6.69	6.82	6.94	6.87	6.57	5.86
12	6.61	6.8	6.96	7.02	7.28	7.24	7.02	6.61
14	6.72	6.92	7.14	7.24	7.58	7.61	7.38	7.02
16	6.76	6.97	7.26	7.45	7.78	7.99	7.78	7.35
20	6.75	6.98	7.34	7.79	8.13	8.53	8.67	8.14

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.14	146°	3.39
8	40.9°	3.79	150°	4.29
10	40.5°	4.27	151°	5.08
12	40.1°	4.57	157°	5.8
14	39.8°	4.68	180°	6.4
16	39.4°	4.72	180°	6.87
20	40.1°	4.65	180°	7.53

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°	4.79	5.66	6.30	6.61	6.72	6.76	6.75
60°	5.06	5.94	6.52	6.80	6.92	6.97	6.98
75°	5.28	6.17	6.69	6.96	7.14	7.26	7.34
90°	5.24	6.26	6.82	7.02	7.24	7.45	7.79
110°	5.31	6.38	6.94	7.28	7.58	7.78	8.13
120°	5.16	6.24	6.87	7.24	7.61	7.99	8.53
135°	4.66	5.71	6.57	7.02	7.38	7.78	8.67
150°	3.92	4.95	5.86	6.61	7.02	7.35	8.14