FOOLPROOF: ORC Rating

GPH

698.8

OSN

680.9

LOA

7.865 m

Displacement

1413 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6712

Medium

0.8851

High

0.9854

Triple Offshore

Low

0.8616

Medium

1.0811

High

1.1993

Boat Specifications

Dimensions

Length overall: 7.865 m
Beam: 3 m
Draft: 1.48 m
Displacement: 1413 kg
Crew weight: 375 kg
Wetted surface: 12.31 m²

Sails

Mainsail: 19.46 m²
Genoa: 14.5 m²
Spinnaker: 53.5 m²
Asymmetric spinnaker: 0 m²

Design

Type: 1/4 Ton
Builder: Caparros
Designer: J.Fauroux
Year built: 1981

Performance data

Polar CSV

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

6,42.5,4.204659,52,4.73,60,4.99,75,5.19,90,5.26,110,5.35,120,5.16,135,4.63,146.6,4.108533,150,3.96
8,42.5,5.018464,52,5.54,60,5.75,75,5.87,90,6.02,110,6.13,120,6.04,135,5.67,150,4.95,150.2,4.943732
10,40.4,5.396971,52,5.91,60,6.06,75,6.21,90,6.4,110,6.61,120,6.55,135,6.26,150,5.76,153.6,5.615646
12,39.1,5.553792,52,6.09,60,6.27,75,6.48,90,6.64,110,7.03,120,7.03,135,6.73,150,6.3,171,5.740677
14,39.2,5.613305,52,6.18,60,6.41,75,6.72,90,6.87,110,7.37,120,7.49,135,7.2,150,6.73,180,6.16
16,39.6,5.645588,52,6.22,60,6.49,75,6.89,90,7.13,110,7.62,120,7.95,135,7.74,150,7.16,180,6.56
20,41.2,5.648479,52,6.2,60,6.51,75,7.02,90,7.53,110,8.09,120,8.8,135,9.56,150,8.32,180,7.38

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.73	4.99	5.19	5.26	5.35	5.16	4.63	3.96
8	5.54	5.75	5.87	6.02	6.13	6.04	5.67	4.95
10	5.91	6.06	6.21	6.4	6.61	6.55	6.26	5.76
12	6.09	6.27	6.48	6.64	7.03	7.03	6.73	6.3
14	6.18	6.41	6.72	6.87	7.37	7.49	7.2	6.73
16	6.22	6.49	6.89	7.13	7.62	7.95	7.74	7.16
20	6.2	6.51	7.02	7.53	8.09	8.8	9.56	8.32

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.5°	3.1	146.6°	3.43
8	42.5°	3.7	150.2°	4.29
10	40.4°	4.11	153.6°	5.03
12	39.1°	4.31	171°	5.67
14	39.2°	4.35	180°	6.16
16	39.6°	4.35	180°	6.56
20	41.2°	4.25	180°	7.38

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°	4.73	5.54	5.91	6.09	6.18	6.22	6.20
60°	4.99	5.75	6.06	6.27	6.41	6.49	6.51
75°	5.19	5.87	6.21	6.48	6.72	6.89	7.02
90°	5.26	6.02	6.40	6.64	6.87	7.13	7.53
110°	5.35	6.13	6.61	7.03	7.37	7.62	8.09
120°	5.16	6.04	6.55	7.03	7.49	7.95	8.80
135°	4.63	5.67	6.26	6.73	7.20	7.74	9.56
150°	3.96	4.95	5.76	6.30	6.73	7.16	8.32