Chinook: ORC Rating

GPH

608.2

OSN

592

LOA

11.625 m

Displacement

5420 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7444

Medium

1.0135

High

1.1751

Triple Offshore

Low

0.9682

Medium

1.2519

High

1.4129

Boat Specifications

Dimensions

Length overall: 11.625 m
Beam: 3.66 m
Draft: 1.96 m
Displacement: 5420 kg
Crew weight: 693 kg
Wetted surface: 28.52 m²

Sails

Mainsail: 46.12 m²
Genoa: 40.83 m²
Spinnaker: 96.16 m²
Asymmetric spinnaker: 86.14 m²

Design

Type: Farr 38
Builder: Farr
Designer: Farr
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.

6,44.2,4.826264,52,5.35,60,5.71,75,6.06,90,6.08,110,5.86,120,5.66,135,5.11,144.7,4.582561,150,4.32
8,43.1,5.724755,52,6.4,60,6.75,75,7.02,90,7.05,110,7.03,120,6.86,135,6.31,148.7,5.523964,150,5.45
10,42.4,6.418804,52,7.05,60,7.28,75,7.46,90,7.53,110,7.58,120,7.48,135,7.16,150,6.44,151.1,6.373759
12,40.3,6.634601,52,7.3,60,7.52,75,7.77,90,7.85,110,8.04,120,7.94,135,7.63,150,7.18,157.2,6.855681
14,39.1,6.739288,52,7.42,60,7.65,75,8.02,90,8.2,110,8.48,120,8.47,135,8.07,150,7.62,175.1,6.975493
16,38.6,6.820039,52,7.49,60,7.73,75,8.18,90,8.53,110,8.77,120,8.98,135,8.57,150,8.02,180,7.44
20,38.3,6.906426,52,7.57,60,7.82,75,8.34,90,8.92,110,9.26,120,9.76,135,9.79,150,8.99,180,8.25

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.35	5.71	6.06	6.08	5.86	5.66	5.11	4.32
8	6.4	6.75	7.02	7.05	7.03	6.86	6.31	5.45
10	7.05	7.28	7.46	7.53	7.58	7.48	7.16	6.44
12	7.3	7.52	7.77	7.85	8.04	7.94	7.63	7.18
14	7.42	7.65	8.02	8.2	8.48	8.47	8.07	7.62
16	7.49	7.73	8.18	8.53	8.77	8.98	8.57	8.02
20	7.57	7.82	8.34	8.92	9.26	9.76	9.79	8.99

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.46	144.7°	3.74
8	43.1°	4.18	148.7°	4.72
10	42.4°	4.74	151.1°	5.58
12	40.3°	5.06	157.2°	6.32
14	39.1°	5.23	175.1°	6.95
16	38.6°	5.33	180°	7.44
20	38.3°	5.42	180°	8.25

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°	5.35	6.40	7.05	7.30	7.42	7.49	7.57
60°	5.71	6.75	7.28	7.52	7.65	7.73	7.82
75°	6.06	7.02	7.46	7.77	8.02	8.18	8.34
90°	6.08	7.05	7.53	7.85	8.20	8.53	8.92
110°	5.86	7.03	7.58	8.04	8.48	8.77	9.26
120°	5.66	6.86	7.48	7.94	8.47	8.98	9.76
135°	5.11	6.31	7.16	7.63	8.07	8.57	9.79
150°	4.32	5.45	6.44	7.18	7.62	8.02	8.99