POLARIS: ORC Rating

GPH

519.5

OSN

506.6

LOA

14.27 m

Displacement

8604 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7783

Medium

1.0526

High

1.2075

Triple Offshore

Low

1.0151

Medium

1.2988

High

1.465

Boat Specifications

Dimensions

Length overall: 14.27 m
Beam: 4.08 m
Draft: 2.96 m
Displacement: 8604 kg
Crew weight: 1105 kg
Wetted surface: 39.03 m²

Sails

Mainsail: 70.27 m²
Genoa: 49.13 m²
Spinnaker: 194.78 m²
Asymmetric spinnaker: 163.06 m²

Design

Type: SYDNEY 47 CR
Builder: SYDNEY YACHTS
Designer: Murray/Burns/Dovel
Year built: 1998

Performance data

Polar CSV

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

6,42.8,5.56063,52,6.22,60,6.58,75,7.16,90,7.41,110,7.18,120,6.79,135,5.97,143.5,5.423851,150,5.04
8,41.2,6.64527,52,7.48,60,7.79,75,8.16,90,8.4,110,8.3,120,8.07,135,7.45,143.9,6.79464,150,6.34
10,39.8,7.367072,52,8.14,60,8.35,75,8.51,90,8.83,110,8.88,120,8.72,135,8.38,148,7.652868,150,7.49
12,38.2,7.571353,52,8.39,60,8.62,75,8.89,90,9.13,110,9.47,120,9.33,135,8.97,150,8.35,154.8,8.045736
14,37.5,7.676277,52,8.5,60,8.76,75,9.19,90,9.4,110,10.02,120,9.95,135,9.65,150,8.87,162,8.285522
16,37.1,7.760939,52,8.56,60,8.84,75,9.37,90,9.79,110,10.45,120,10.63,135,10.4,150,9.47,180,8.46
20,36.7,7.919921,52,8.75,60,9.05,75,9.55,90,10.29,110,11.16,120,11.87,135,12.1,150,10.91,180,9.54

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.22	6.58	7.16	7.41	7.18	6.79	5.97	5.04
8	7.48	7.79	8.16	8.4	8.3	8.07	7.45	6.34
10	8.14	8.35	8.51	8.83	8.88	8.72	8.38	7.49
12	8.39	8.62	8.89	9.13	9.47	9.33	8.97	8.35
14	8.5	8.76	9.19	9.4	10.02	9.95	9.65	8.87
16	8.56	8.84	9.37	9.79	10.45	10.63	10.4	9.47
20	8.75	9.05	9.55	10.29	11.16	11.87	12.1	10.91

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	4.08	143.5°	4.36
8	41.2°	5	143.9°	5.49
10	39.8°	5.66	148°	6.49
12	38.2°	5.95	154.8°	7.28
14	37.5°	6.09	162°	7.88
16	37.1°	6.19	180°	8.46
20	36.7°	6.35	180°	9.54

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°	6.22	7.48	8.14	8.39	8.50	8.56	8.75
60°	6.58	7.79	8.35	8.62	8.76	8.84	9.05
75°	7.16	8.16	8.51	8.89	9.19	9.37	9.55
90°	7.41	8.40	8.83	9.13	9.40	9.79	10.29
110°	7.18	8.30	8.88	9.47	10.02	10.45	11.16
120°	6.79	8.07	8.72	9.33	9.95	10.63	11.87
135°	5.97	7.45	8.38	8.97	9.65	10.40	12.10
150°	5.04	6.34	7.49	8.35	8.87	9.47	10.91