Life: ORC Rating

GPH

637.1

OSN

617

LOA

9.982 m

Displacement

4589 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6417

Medium

0.8706

High

1.0003

Triple Offshore

Low

0.8249

Medium

1.0625

High

1.1861

Boat Specifications

Dimensions

Length overall: 9.982 m
Beam: 3.37 m
Draft: 2 m
Displacement: 4589 kg
Crew weight: 750 kg
Wetted surface: 23.66 m²

Sails

Mainsail: 32.24 m²
Genoa: 26.29 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 92.54 m²

Design

Type: First 34.7
Builder: Beneteau
Designer: Farr
Year built: 2005

Performance data

Polar CSV

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

6,43.5,4.535589,52,5.02,60,5.29,75,5.45,90,5.62,110,5.71,120,5.57,135,5.06,140.8,4.774536,150,4.27
8,41.5,5.354122,52,5.97,60,6.22,75,6.37,90,6.61,110,6.76,120,6.64,135,6.21,147.3,5.513893,150,5.36
10,39.7,5.913702,52,6.55,60,6.73,75,6.87,90,7.09,110,7.28,120,7.22,135,6.92,150,6.28,151.2,6.207872
12,38.1,6.213982,52,6.88,60,7.04,75,7.17,90,7.34,110,7.66,120,7.65,135,7.37,150,6.92,158.4,6.571472
14,37.5,6.352781,52,7.05,60,7.22,75,7.41,90,7.5,110,7.97,120,8.05,135,7.78,150,7.34,172.7,6.734588
16,37.6,6.462283,52,7.13,60,7.32,75,7.59,90,7.7,110,8.2,120,8.41,135,8.19,150,7.71,178.1,7.143928
20,37.9,6.539227,52,7.2,60,7.42,75,7.79,90,8.09,110,8.57,120,9.05,135,9.17,150,8.5,178.6,7.852344
24,39,6.562474,52,7.2,60,7.43,75,7.88,90,8.32,110,8.9,120,9.59,135,10.95,150,9.6,177.3,8.599547

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.02	5.29	5.45	5.62	5.71	5.57	5.06	4.27
8	5.97	6.22	6.37	6.61	6.76	6.64	6.21	5.36
10	6.55	6.73	6.87	7.09	7.28	7.22	6.92	6.28
12	6.88	7.04	7.17	7.34	7.66	7.65	7.37	6.92
14	7.05	7.22	7.41	7.5	7.97	8.05	7.78	7.34
16	7.13	7.32	7.59	7.7	8.2	8.41	8.19	7.71
20	7.2	7.42	7.79	8.09	8.57	9.05	9.17	8.5
24	7.2	7.43	7.88	8.32	8.9	9.59	10.95	9.6

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.29	140.8°	3.7
8	41.5°	4.01	147.3°	4.64
10	39.7°	4.55	151.2°	5.44
12	38.1°	4.89	158.4°	6.11
14	37.5°	5.04	172.7°	6.68
16	37.6°	5.12	178.1°	7.14
20	37.9°	5.16	178.6°	7.85
24	39°	5.1	177.3°	8.59

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 kt24 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)	Boat speed in 24 kt (kt)
0°	0.00	0.00	0.00	0.00	0.00	0.00	0.00	0.00
52°	5.02	5.97	6.55	6.88	7.05	7.13	7.20	7.20
60°	5.29	6.22	6.73	7.04	7.22	7.32	7.42	7.43
75°	5.45	6.37	6.87	7.17	7.41	7.59	7.79	7.88
90°	5.62	6.61	7.09	7.34	7.50	7.70	8.09	8.32
110°	5.71	6.76	7.28	7.66	7.97	8.20	8.57	8.90
120°	5.57	6.64	7.22	7.65	8.05	8.41	9.05	9.59
135°	5.06	6.21	6.92	7.37	7.78	8.19	9.17	10.95
150°	4.27	5.36	6.28	6.92	7.34	7.71	8.50	9.60