God Tid: ORC Rating

GPH

741.8

OSN

720.6

LOA

9.3 m

Displacement

4025 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5339

Medium

0.7304

High

0.8628

Triple Offshore

Low

0.6936

Medium

0.918

High

1.0439

Boat Specifications

Dimensions

Length overall: 9.3 m
Beam: 3.22 m
Draft: 1.76 m
Displacement: 4025 kg
Crew weight: 493 kg
Wetted surface: 20.04 m²

Sails

Mainsail: 18.92 m²
Genoa: 22.23 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 61.84 m²

Design

Type: FIRST 305
Builder: Beneteau
Designer: Jean Berret
Year built: 1985

Performance data

Polar CSV

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

6,44.2,3.780109,52,4.19,60,4.43,75,4.61,90,4.81,110,4.89,120,4.69,135,4.22,145.5,3.785828,150,3.6
8,42.8,4.483939,52,5,60,5.28,75,5.49,90,5.84,110,5.94,120,5.77,135,5.22,146.5,4.688891,150,4.52
10,42,5.005754,52,5.63,60,5.92,75,6.13,90,6.43,110,6.5,120,6.42,135,6.1,145,5.664394,150,5.35
12,42,5.503638,52,6.07,60,6.27,75,6.43,90,6.73,110,6.83,120,6.77,135,6.55,147.5,6.118155,150,5.96
14,40.5,5.760081,52,6.31,60,6.48,75,6.64,90,6.9,110,7.14,120,7.08,135,6.86,150,6.33,174,5.550406
16,39.8,5.883245,52,6.45,60,6.62,75,6.81,90,7,110,7.43,120,7.42,135,7.16,150,6.6,176,6.084822
20,40.5,5.944193,52,6.52,60,6.74,75,7.08,90,7.26,110,7.81,120,8.02,135,7.8,150,7.07,178,6.684072

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.19	4.43	4.61	4.81	4.89	4.69	4.22	3.6
8	5	5.28	5.49	5.84	5.94	5.77	5.22	4.52
10	5.63	5.92	6.13	6.43	6.5	6.42	6.1	5.35
12	6.07	6.27	6.43	6.73	6.83	6.77	6.55	5.96
14	6.31	6.48	6.64	6.9	7.14	7.08	6.86	6.33
16	6.45	6.62	6.81	7	7.43	7.42	7.16	6.6
20	6.52	6.74	7.08	7.26	7.81	8.02	7.8	7.07

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.71	145.5°	3.12
8	42.8°	3.29	146.5°	3.91
10	42°	3.72	145°	4.64
12	42°	4.09	147.5°	5.16
14	40.5°	4.38	174°	5.52
16	39.8°	4.52	176°	6.07
20	40.5°	4.52	178°	6.68

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°	4.19	5.00	5.63	6.07	6.31	6.45	6.52
60°	4.43	5.28	5.92	6.27	6.48	6.62	6.74
75°	4.61	5.49	6.13	6.43	6.64	6.81	7.08
90°	4.81	5.84	6.43	6.73	6.90	7.00	7.26
110°	4.89	5.94	6.50	6.83	7.14	7.43	7.81
120°	4.69	5.77	6.42	6.77	7.08	7.42	8.02
135°	4.22	5.22	6.10	6.55	6.86	7.16	7.80
150°	3.60	4.52	5.35	5.96	6.33	6.60	7.07