IDHRA: ORC Rating

GPH

666

OSN

647.3

LOA

9.855 m

Displacement

4115 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6999

Medium

0.9371

High

1.0661

Triple Offshore

Low

0.8936

Medium

1.1405

High

1.2633

Boat Specifications

Dimensions

Length overall: 9.855 m
Beam: 3.39 m
Draft: 1.98 m
Displacement: 4115 kg
Crew weight: 360 kg
Wetted surface: 20.79 m²

Sails

Mainsail: 25.86 m²
Genoa: 33.01 m²
Spinnaker: 78.27 m²
Asymmetric spinnaker: 0 m²

Design

Type: BONIN 33
Builder: SERENO BONIN & C.
Designer: COSSUTTI-BONIN
Year built: 1982

Performance data

Polar CSV

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

6,41.5,4.432839,52,4.96,60,5.19,75,5.37,90,5.3,110,5.28,120,5.15,135,4.71,147,4.149424,150,4.02
8,40.5,5.194594,52,5.86,60,6.09,75,6.24,90,6.22,110,6.34,120,6.22,135,5.76,150,5.02,150.8,4.983263
10,40.2,5.799978,52,6.38,60,6.53,75,6.65,90,6.72,110,6.84,120,6.78,135,6.52,150,5.92,151.3,5.848512
12,39.1,6.043453,52,6.61,60,6.75,75,6.89,90,6.93,110,7.18,120,7.15,135,6.92,150,6.56,159.5,6.20281
14,38.6,6.129078,52,6.72,60,6.89,75,7.08,90,7.17,110,7.49,120,7.52,135,7.28,150,6.93,180,6.4
16,38.3,6.167362,52,6.76,60,6.95,75,7.24,90,7.4,110,7.68,120,7.86,135,7.66,150,7.26,180,6.8
20,38.4,6.175884,52,6.78,60,6.99,75,7.39,90,7.75,110,7.98,120,8.29,135,8.4,150,7.96,180,7.44

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.96	5.19	5.37	5.3	5.28	5.15	4.71	4.02
8	5.86	6.09	6.24	6.22	6.34	6.22	5.76	5.02
10	6.38	6.53	6.65	6.72	6.84	6.78	6.52	5.92
12	6.61	6.75	6.89	6.93	7.18	7.15	6.92	6.56
14	6.72	6.89	7.08	7.17	7.49	7.52	7.28	6.93
16	6.76	6.95	7.24	7.4	7.68	7.86	7.66	7.26
20	6.78	6.99	7.39	7.75	7.98	8.29	8.4	7.96

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.5°	3.32	147°	3.48
8	40.5°	3.95	150.8°	4.35
10	40.2°	4.43	151.3°	5.13
12	39.1°	4.69	159.5°	5.81
14	38.6°	4.79	180°	6.4
16	38.3°	4.84	180°	6.8
20	38.4°	4.84	180°	7.44

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°	4.96	5.86	6.38	6.61	6.72	6.76	6.78
60°	5.19	6.09	6.53	6.75	6.89	6.95	6.99
75°	5.37	6.24	6.65	6.89	7.08	7.24	7.39
90°	5.30	6.22	6.72	6.93	7.17	7.40	7.75
110°	5.28	6.34	6.84	7.18	7.49	7.68	7.98
120°	5.15	6.22	6.78	7.15	7.52	7.86	8.29
135°	4.71	5.76	6.52	6.92	7.28	7.66	8.40
150°	4.02	5.02	5.92	6.56	6.93	7.26	7.96