SHEAR TERROR: ORC Rating

GPH

522

OSN

513.7

LOA

12.411 m

Displacement

5161 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.9072

Medium

1.1581

High

1.3198

Triple Offshore

Low

1.1741

Medium

1.4295

High

1.6085

Boat Specifications

Dimensions

Length overall: 12.411 m
Beam: 3.96 m
Draft: 2.6 m
Displacement: 5161 kg
Crew weight: 870 kg
Wetted surface: 30.11 m²

Sails

Mainsail: 64.87 m²
Genoa: 41.7 m²
Spinnaker: 158.12 m²
Asymmetric spinnaker: 152.99 m²

Design

Type: FARR 40
Builder: CARROLL
Designer: FARR
Year built: 1997

Performance data

Polar CSV

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

6,43.1,6.121927,52,6.86,60,7.28,75,7.61,90,7.68,110,7.2,120,6.7,135,6.03,143.5,5.461171,150,5.07
8,40.5,6.785849,52,7.56,60,7.83,75,8.14,90,8.28,110,7.98,120,7.91,135,7.43,143.2,6.893698,150,6.37
10,38.4,7.05633,52,7.83,60,8.06,75,8.45,90,8.77,110,8.59,120,8.58,135,8.17,150,7.43,150.1,7.417262
12,37.7,7.216671,52,7.98,60,8.22,75,8.68,90,9.1,110,9.27,120,9.28,135,8.9,150,8.14,157.1,7.772594
14,37.2,7.281585,52,8.06,60,8.34,75,8.87,90,9.36,110,9.94,120,9.83,135,9.75,150,8.78,171.8,7.819949
16,36.5,7.401815,52,8.17,60,8.43,75,9,90,9.64,110,10.39,120,10.67,135,10.72,150,9.52,180,8.3
20,36.9,7.452938,52,8.29,60,8.66,75,9.3,90,9.97,110,11.19,120,11.72,135,12.59,145,12.18333,150,11.52

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.86	7.28	7.61	7.68	7.2	6.7	6.03	5.07
8	7.56	7.83	8.14	8.28	7.98	7.91	7.43	6.37
10	7.83	8.06	8.45	8.77	8.59	8.58	8.17	7.43
12	7.98	8.22	8.68	9.1	9.27	9.28	8.9	8.14
14	8.06	8.34	8.87	9.36	9.94	9.83	9.75	8.78
16	8.17	8.43	9	9.64	10.39	10.67	10.72	9.52
20	8.29	8.66	9.3	9.97	11.19	11.72	12.59	11.52

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	4.47	143.5°	4.39
8	40.5°	5.16	143.2°	5.52
10	38.4°	5.53	150.1°	6.43
12	37.7°	5.71	157.1°	7.16
14	37.2°	5.8	171.8°	7.74
16	36.5°	5.95	180°	8.3
20	36.9°	5.96	145°	9.98

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°	6.86	7.56	7.83	7.98	8.06	8.17	8.29
60°	7.28	7.83	8.06	8.22	8.34	8.43	8.66
75°	7.61	8.14	8.45	8.68	8.87	9.00	9.30
90°	7.68	8.28	8.77	9.10	9.36	9.64	9.97
110°	7.20	7.98	8.59	9.27	9.94	10.39	11.19
120°	6.70	7.91	8.58	9.28	9.83	10.67	11.72
135°	6.03	7.43	8.17	8.90	9.75	10.72	12.59
150°	5.07	6.37	7.43	8.14	8.78	9.52	11.52