ROOT: ORC Rating

GPH

857.7

OSN

818.3

LOA

9.12 m

Displacement

3193 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.4934

Medium

0.7236

High

0.9132

Triple Offshore

Low

0.6346

Medium

0.9067

High

1.1066

Boat Specifications

Dimensions

Length overall: 9.12 m
Beam: 3.27 m
Draft: 1.54 m
Displacement: 3193 kg
Crew weight: 460 kg
Wetted surface: 19.49 m²

Sails

Mainsail: 20.46 m²
Genoa: 14.98 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: HUNTER 306
Builder: HUNTERMARINE
Year built: 2004

Performance data

Polar CSV

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

6,45.9,3.175685,52,3.47,60,3.75,75,4,90,3.97,110,3.76,120,3.53,135,3.13,150,2.76,176,2.49608
8,45.1,3.91006,52,4.31,60,4.61,75,4.89,90,4.89,110,4.71,120,4.48,135,4.05,150,3.63,177.1,3.304232
10,44.9,4.489371,52,4.94,60,5.29,75,5.62,90,5.66,110,5.51,120,5.27,135,4.83,150,4.4,178.3,4.051783
12,44.9,4.997601,52,5.51,60,5.87,75,6.16,90,6.25,110,6.15,120,5.96,135,5.53,150,5.08,179,4.730721
14,44.8,5.482188,52,5.98,60,6.26,75,6.47,90,6.59,110,6.52,120,6.41,135,6.11,150,5.71,179.1,5.35066
16,43.3,5.71607,52,6.26,60,6.48,75,6.69,90,6.86,110,6.79,120,6.69,135,6.48,150,6.21,179.5,5.920225
20,44.7,5.880702,52,6.36,60,6.63,75,7.03,90,7.37,110,7.34,120,7.23,135,7,150,6.78,179.8,6.63004

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.47	3.75	4	3.97	3.76	3.53	3.13	2.76
8	4.31	4.61	4.89	4.89	4.71	4.48	4.05	3.63
10	4.94	5.29	5.62	5.66	5.51	5.27	4.83	4.4
12	5.51	5.87	6.16	6.25	6.15	5.96	5.53	5.08
14	5.98	6.26	6.47	6.59	6.52	6.41	6.11	5.71
16	6.26	6.48	6.69	6.86	6.79	6.69	6.48	6.21
20	6.36	6.63	7.03	7.37	7.34	7.23	7	6.78

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.9°	2.21	176°	2.49
8	45.1°	2.76	177.1°	3.3
10	44.9°	3.18	178.3°	4.05
12	44.9°	3.54	179°	4.73
14	44.8°	3.89	179.1°	5.35
16	43.3°	4.16	179.5°	5.92
20	44.7°	4.18	179.8°	6.63

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°	3.47	4.31	4.94	5.51	5.98	6.26	6.36
60°	3.75	4.61	5.29	5.87	6.26	6.48	6.63
75°	4.00	4.89	5.62	6.16	6.47	6.69	7.03
90°	3.97	4.89	5.66	6.25	6.59	6.86	7.37
110°	3.76	4.71	5.51	6.15	6.52	6.79	7.34
120°	3.53	4.48	5.27	5.96	6.41	6.69	7.23
135°	3.13	4.05	4.83	5.53	6.11	6.48	7.00
150°	2.76	3.63	4.40	5.08	5.71	6.21	6.78