Rush: ORC Rating

GPH

537.5

OSN

524.5

LOA

12.47 m

Displacement

5316 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7784

Medium

1.0134

High

1.1496

Triple Offshore

Low

1.0014

Medium

1.2458

High

1.3912

Boat Specifications

Dimensions

Length overall: 12.47 m
Beam: 3.73 m
Draft: 2.67 m
Displacement: 5316 kg
Crew weight: 770 kg
Wetted surface: 29.6 m²

Sails

Mainsail: 60.35 m²
Genoa: 46.74 m²
Spinnaker: 141.04 m²
Asymmetric spinnaker: 120.92 m²

Design

Type: Sydney 40 mod keel
Builder: Bashford Int.
Designer: Murray/Burns/Dovel
Year built: 1998
Stability index: 116

Performance data

Polar CSV

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

6,42.6,5.732939,52,6.41,60,6.78,75,7.06,90,6.98,110,6.66,120,6.45,135,5.82,143,5.321577,150,4.91
8,40.8,6.710744,52,7.48,60,7.71,75,7.87,90,7.84,110,7.83,120,7.73,135,7.23,142.8,6.70408,150,6.16
10,39.4,7.052884,52,7.78,60,8.01,75,8.29,90,8.33,110,8.46,120,8.4,135,8.02,150,7.27,150.5,7.23842
12,38.2,7.176879,52,7.92,60,8.16,75,8.55,90,8.8,110,8.91,120,9.07,135,8.66,150,7.99,157.4,7.636397
14,37.8,7.239086,52,8.01,60,8.26,75,8.72,90,9.16,110,9.28,120,9.65,135,9.39,150,8.58,166.4,7.860398
16,37.3,7.328968,52,8.07,60,8.32,75,8.84,90,9.38,110,9.62,120,10.1,135,10.24,150,9.25,173.6,8.231298
20,37.5,7.424183,52,8.2,60,8.53,75,9.06,90,9.64,110,10.52,120,11,135,12.24,150,10.91,151.4,10.763307

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.41	6.78	7.06	6.98	6.66	6.45	5.82	4.91
8	7.48	7.71	7.87	7.84	7.83	7.73	7.23	6.16
10	7.78	8.01	8.29	8.33	8.46	8.4	8.02	7.27
12	7.92	8.16	8.55	8.8	8.91	9.07	8.66	7.99
14	8.01	8.26	8.72	9.16	9.28	9.65	9.39	8.58
16	8.07	8.32	8.84	9.38	9.62	10.1	10.24	9.25
20	8.2	8.53	9.06	9.64	10.52	11	12.24	10.91

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	4.22	143°	4.25
8	40.8°	5.08	142.8°	5.34
10	39.4°	5.45	150.5°	6.3
12	38.2°	5.64	157.4°	7.05
14	37.8°	5.72	166.4°	7.64
16	37.3°	5.83	173.6°	8.18
20	37.5°	5.89	151.4°	9.45

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°	6.41	7.48	7.78	7.92	8.01	8.07	8.20
60°	6.78	7.71	8.01	8.16	8.26	8.32	8.53
75°	7.06	7.87	8.29	8.55	8.72	8.84	9.06
90°	6.98	7.84	8.33	8.80	9.16	9.38	9.64
110°	6.66	7.83	8.46	8.91	9.28	9.62	10.52
120°	6.45	7.73	8.40	9.07	9.65	10.10	11.00
135°	5.82	7.23	8.02	8.66	9.39	10.24	12.24
150°	4.91	6.16	7.27	7.99	8.58	9.25	10.91