STORMTROOPER: ORC Rating

GPH

529.7

OSN

516.7

LOA

12.415 m

Displacement

5088 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7999

Medium

1.0303

High

1.17

Triple Offshore

Low

1.0216

Medium

1.2602

High

1.4095

Boat Specifications

Dimensions

Length overall: 12.415 m
Beam: 3.96 m
Draft: 2.6 m
Displacement: 5088 kg
Crew weight: 870 kg
Wetted surface: 30.02 m²

Sails

Mainsail: 64.31 m²
Genoa: 40.62 m²
Spinnaker: 159.47 m²
Asymmetric spinnaker: 0 m²

Design

Type: FARR 40 OD
Builder: CARROLL MARINE
Designer: BRUCE FARR
Year built: 1997
Stability index: 122.7

Performance data

Polar CSV

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

6,42.3,5.88131,52,6.55,60,6.87,75,7.09,90,6.98,110,6.8,120,6.64,135,6.02,142.6,5.513494,150,5.06
8,39.4,6.690534,52,7.48,60,7.71,75,7.87,90,7.83,110,7.88,120,7.83,135,7.39,143.3,6.859774,150,6.35
10,37.6,6.979771,52,7.82,60,8.05,75,8.31,90,8.35,110,8.43,120,8.51,135,8.19,150,7.4,150.5,7.364805
12,37.2,7.168595,52,7.99,60,8.23,75,8.6,90,8.8,110,8.81,120,9.1,135,8.9,150,8.16,156.5,7.818463
14,36.9,7.277869,52,8.09,60,8.36,75,8.8,90,9.18,110,9.17,120,9.56,135,9.67,150,8.82,162.2,8.150153
16,36.6,7.324205,52,8.17,60,8.46,75,8.96,90,9.45,110,9.51,120,10.01,135,10.57,150,9.56,159.2,8.921449
20,37,7.3876,52,8.24,60,8.57,75,9.17,90,9.86,110,10.64,120,10.93,135,12.27,148.2,11.777957,150,11.56

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.55	6.87	7.09	6.98	6.8	6.64	6.02	5.06
8	7.48	7.71	7.87	7.83	7.88	7.83	7.39	6.35
10	7.82	8.05	8.31	8.35	8.43	8.51	8.19	7.4
12	7.99	8.23	8.6	8.8	8.81	9.1	8.9	8.16
14	8.09	8.36	8.8	9.18	9.17	9.56	9.67	8.82
16	8.17	8.46	8.96	9.45	9.51	10.01	10.57	9.56
20	8.24	8.57	9.17	9.86	10.64	10.93	12.27	11.56

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.3°	4.35	142.6°	4.38
8	39.4°	5.17	143.3°	5.5
10	37.6°	5.53	150.5°	6.41
12	37.2°	5.71	156.5°	7.17
14	36.9°	5.82	162.2°	7.76
16	36.6°	5.88	159.2°	8.34
20	37°	5.9	148.2°	10.01

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°	6.55	7.48	7.82	7.99	8.09	8.17	8.24
60°	6.87	7.71	8.05	8.23	8.36	8.46	8.57
75°	7.09	7.87	8.31	8.60	8.80	8.96	9.17
90°	6.98	7.83	8.35	8.80	9.18	9.45	9.86
110°	6.80	7.88	8.43	8.81	9.17	9.51	10.64
120°	6.64	7.83	8.51	9.10	9.56	10.01	10.93
135°	6.02	7.39	8.19	8.90	9.67	10.57	12.27
150°	5.06	6.35	7.40	8.16	8.82	9.56	11.56