RAFAGAS II: ORC Rating

GPH

665.3

OSN

643.9

LOA

9.798 m

Displacement

4516 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.604

Medium

0.832

High

0.96

Triple Offshore

Low

0.78

Medium

1.0226

High

1.1448

Boat Specifications

Dimensions

Length overall: 9.798 m
Beam: 3.33 m
Draft: 2.09 m
Displacement: 4516 kg
Crew weight: 500 kg
Wetted surface: 23.58 m²

Sails

Mainsail: 30.29 m²
Genoa: 31.25 m²
Spinnaker: 65.73 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 33.7
Builder: BENETEAU
Designer: J.BERRET
Year built: 1996
Stability index: 110.9

Performance data

Polar CSV

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

6,43.2,4.389764,52,4.9,60,5.19,75,5.41,90,5.34,110,5.23,120,5.07,135,4.57,146,4.04083,150,3.87
8,41.4,5.159236,52,5.81,60,6.11,75,6.33,90,6.31,110,6.35,120,6.19,135,5.64,150,4.93,150.5,4.90604
10,40.8,5.812455,52,6.47,60,6.67,75,6.81,90,6.88,110,6.96,120,6.87,135,6.51,150,5.84,152.9,5.695267
12,39.4,6.147009,52,6.77,60,6.94,75,7.09,90,7.18,110,7.33,120,7.26,135,7,150,6.58,157.4,6.271594
14,38.8,6.261725,52,6.89,60,7.08,75,7.29,90,7.39,110,7.69,120,7.64,135,7.36,150,7.02,170,6.49873
16,38.5,6.299449,52,6.94,60,7.14,75,7.44,90,7.64,110,8,120,8.04,135,7.76,150,7.36,178.1,6.873779
20,38.8,6.300219,52,6.96,60,7.17,75,7.57,90,8.03,110,8.36,120,8.75,135,8.65,150,8.13,179,7.531147

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.9	5.19	5.41	5.34	5.23	5.07	4.57	3.87
8	5.81	6.11	6.33	6.31	6.35	6.19	5.64	4.93
10	6.47	6.67	6.81	6.88	6.96	6.87	6.51	5.84
12	6.77	6.94	7.09	7.18	7.33	7.26	7	6.58
14	6.89	7.08	7.29	7.39	7.69	7.64	7.36	7.02
16	6.94	7.14	7.44	7.64	8	8.04	7.76	7.36
20	6.96	7.17	7.57	8.03	8.36	8.75	8.65	8.13

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.2	146°	3.35
8	41.4°	3.87	150.5°	4.27
10	40.8°	4.4	152.9°	5.07
12	39.4°	4.75	157.4°	5.79
14	38.8°	4.88	170°	6.4
16	38.5°	4.93	178.1°	6.87
20	38.8°	4.91	179°	7.53

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°	4.90	5.81	6.47	6.77	6.89	6.94	6.96
60°	5.19	6.11	6.67	6.94	7.08	7.14	7.17
75°	5.41	6.33	6.81	7.09	7.29	7.44	7.57
90°	5.34	6.31	6.88	7.18	7.39	7.64	8.03
110°	5.23	6.35	6.96	7.33	7.69	8.00	8.36
120°	5.07	6.19	6.87	7.26	7.64	8.04	8.75
135°	4.57	5.64	6.51	7.00	7.36	7.76	8.65
150°	3.87	4.93	5.84	6.58	7.02	7.36	8.13