NAIS: ORC Rating

GPH

733.6

OSN

710.3

LOA

9.85 m

Displacement

5171 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5274

Medium

0.7338

High

0.8765

Triple Offshore

Low

0.6895

Medium

0.9336

High

1.0751

Boat Specifications

Dimensions

Length overall: 9.85 m
Beam: 3.41 m
Draft: 1.58 m
Displacement: 5171 kg
Crew weight: 360 kg
Wetted surface: 24.08 m²

Sails

Mainsail: 26.99 m²
Genoa: 22.75 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 51.56 m²

Design

Type: GIBSEA 33
Builder: DUFOUR
Designer: J&J/Poncin
Year built: 2001

Performance data

Polar CSV

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

6,46.5,3.84976,52,4.19,60,4.51,75,4.75,90,4.81,110,4.84,120,4.65,135,4.16,145.5,3.725158,150,3.54
8,44.2,4.561238,52,5.05,60,5.37,75,5.65,90,5.84,110,5.91,120,5.71,135,5.2,146.5,4.700883,150,4.52
10,43.1,5.108453,52,5.7,60,6.05,75,6.36,90,6.63,110,6.69,120,6.56,135,6.09,146.2,5.547637,150,5.32
12,42.8,5.601517,52,6.26,60,6.55,75,6.77,90,7.03,110,7.09,120,7.02,135,6.74,146.5,6.25985,150,6.03
14,42.8,5.996757,52,6.58,60,6.82,75,7.02,90,7.27,110,7.39,120,7.33,135,7.11,150,6.54,174,5.701232
16,42.4,6.134426,52,6.73,60,6.96,75,7.19,90,7.4,110,7.7,120,7.64,135,7.4,150,6.9,176,6.285311
20,43.1,6.163014,52,6.76,60,7.04,75,7.42,90,7.68,110,8.27,120,8.34,135,8.06,150,7.39,178.5,7.022406

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.19	4.51	4.75	4.81	4.84	4.65	4.16	3.54
8	5.05	5.37	5.65	5.84	5.91	5.71	5.2	4.52
10	5.7	6.05	6.36	6.63	6.69	6.56	6.09	5.32
12	6.26	6.55	6.77	7.03	7.09	7.02	6.74	6.03
14	6.58	6.82	7.02	7.27	7.39	7.33	7.11	6.54
16	6.73	6.96	7.19	7.4	7.7	7.64	7.4	6.9
20	6.76	7.04	7.42	7.68	8.27	8.34	8.06	7.39

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	46.5°	2.65	145.5°	3.07
8	44.2°	3.27	146.5°	3.92
10	43.1°	3.73	146.2°	4.61
12	42.8°	4.11	146.5°	5.22
14	42.8°	4.4	174°	5.67
16	42.4°	4.53	176°	6.27
20	43.1°	4.5	178.5°	7.02

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	5.05	5.70	6.26	6.58	6.73	6.76
60°	4.51	5.37	6.05	6.55	6.82	6.96	7.04
75°	4.75	5.65	6.36	6.77	7.02	7.19	7.42
90°	4.81	5.84	6.63	7.03	7.27	7.40	7.68
110°	4.84	5.91	6.69	7.09	7.39	7.70	8.27
120°	4.65	5.71	6.56	7.02	7.33	7.64	8.34
135°	4.16	5.20	6.09	6.74	7.11	7.40	8.06
150°	3.54	4.52	5.32	6.03	6.54	6.90	7.39