ACQUERELLA: ORC Rating

GPH

651.9

OSN

634.4

LOA

9.53 m

Displacement

2412 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7119

Medium

0.9524

High

1.0775

Triple Offshore

Low

0.9156

Medium

1.1636

High

1.2972

Boat Specifications

Dimensions

Length overall: 9.53 m
Beam: 3.18 m
Draft: 1.7 m
Displacement: 2412 kg
Crew weight: 463 kg
Wetted surface: 17.03 m²

Sails

Mainsail: 29.69 m²
Genoa: 24.39 m²
Spinnaker: 49.46 m²
Asymmetric spinnaker: 0 m²

Design

Type: FARR 31
Builder: ARTMARE
Designer: FARR
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.

6,42.1,4.663225,52,5.23,60,5.5,75,5.71,90,5.64,110,5.38,120,5.19,135,4.66,146.1,4.096325,150,3.93
8,41.1,5.546979,52,6.17,60,6.35,75,6.47,90,6.45,110,6.41,120,6.27,135,5.75,150,4.97,150.3,4.961828
10,39.1,5.966138,52,6.55,60,6.71,75,6.85,90,6.87,110,6.93,120,6.82,135,6.5,150,5.89,152.4,5.777454
12,38.1,6.086907,52,6.7,60,6.89,75,7.14,90,7.21,110,7.41,120,7.29,135,6.95,150,6.55,161.6,6.133573
14,37.8,6.138036,52,6.77,60,6.98,75,7.35,90,7.55,110,7.86,120,7.79,135,7.41,150,6.97,180,6.43
16,37.9,6.159039,52,6.8,60,7.04,75,7.47,90,7.83,110,8.21,120,8.32,135,7.88,150,7.39,180,6.86
20,38.4,6.226925,52,6.86,60,7.09,75,7.56,90,8.14,110,8.73,120,9.34,135,9.13,150,8.31,180,7.67

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.23	5.5	5.71	5.64	5.38	5.19	4.66	3.93
8	6.17	6.35	6.47	6.45	6.41	6.27	5.75	4.97
10	6.55	6.71	6.85	6.87	6.93	6.82	6.5	5.89
12	6.7	6.89	7.14	7.21	7.41	7.29	6.95	6.55
14	6.77	6.98	7.35	7.55	7.86	7.79	7.41	6.97
16	6.8	7.04	7.47	7.83	8.21	8.32	7.88	7.39
20	6.86	7.09	7.56	8.14	8.73	9.34	9.13	8.31

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.1°	3.46	146.1°	3.4
8	41.1°	4.18	150.3°	4.31
10	39.1°	4.63	152.4°	5.12
12	38.1°	4.79	161.6°	5.82
14	37.8°	4.85	180°	6.43
16	37.9°	4.86	180°	6.86
20	38.4°	4.88	180°	7.67

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°	5.23	6.17	6.55	6.70	6.77	6.80	6.86
60°	5.50	6.35	6.71	6.89	6.98	7.04	7.09
75°	5.71	6.47	6.85	7.14	7.35	7.47	7.56
90°	5.64	6.45	6.87	7.21	7.55	7.83	8.14
110°	5.38	6.41	6.93	7.41	7.86	8.21	8.73
120°	5.19	6.27	6.82	7.29	7.79	8.32	9.34
135°	4.66	5.75	6.50	6.95	7.41	7.88	9.13
150°	3.93	4.97	5.89	6.55	6.97	7.39	8.31