Summersalt: ORC Rating

GPH

602.9

OSN

587.3

LOA

9.424 m

Displacement

2600 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7005

Medium

0.913

High

1.0259

Triple Offshore

Low

0.8931

Medium

1.1099

High

1.2383

Boat Specifications

Dimensions

Length overall: 9.424 m
Beam: 3.07 m
Draft: 2.27 m
Displacement: 2600 kg
Crew weight: 540 kg
Wetted surface: 19.23 m²

Sails

Mainsail: 34.7 m²
Genoa: 23.25 m²
Spinnaker: 85.33 m²
Asymmetric spinnaker: 0 m²

Design

Type: Custom super 30
Builder: G Goetzee
Designer: Will Hardcastle
Year built: 2002

Performance data

Polar CSV

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

6,41.6,4.934487,52,5.56,60,5.86,75,6.1,90,6.03,110,6.09,120,5.94,135,5.38,143,4.945936,150,4.57
8,40.5,5.852137,52,6.48,60,6.66,75,6.8,90,6.84,110,6.98,120,6.9,135,6.55,147,5.878351,150,5.7
10,37.7,6.19294,52,6.85,60,7.02,75,7.18,90,7.2,110,7.51,120,7.49,135,7.15,150,6.61,153.5,6.436226
12,37.1,6.319084,52,6.99,60,7.2,75,7.52,90,7.62,110,7.9,120,8.11,135,7.74,150,7.15,162.5,6.679131
14,36.8,6.369177,52,7.05,60,7.29,75,7.74,90,8.03,110,8.23,120,8.59,135,8.41,150,7.7,180,6.93
16,36.6,6.427364,52,7.09,60,7.34,75,7.86,90,8.35,110,8.56,120,8.99,135,9.22,150,8.3,180,7.41
20,37.1,6.482076,52,7.19,60,7.51,75,7.99,90,8.66,110,9.26,120,9.85,135,11.06,148,10.070184,150,9.87

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.56	5.86	6.1	6.03	6.09	5.94	5.38	4.57
8	6.48	6.66	6.8	6.84	6.98	6.9	6.55	5.7
10	6.85	7.02	7.18	7.2	7.51	7.49	7.15	6.61
12	6.99	7.2	7.52	7.62	7.9	8.11	7.74	7.15
14	7.05	7.29	7.74	8.03	8.23	8.59	8.41	7.7
16	7.09	7.34	7.86	8.35	8.56	8.99	9.22	8.3
20	7.19	7.51	7.99	8.66	9.26	9.85	11.06	9.87

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.6°	3.69	143°	3.95
8	40.5°	4.45	147°	4.93
10	37.7°	4.9	153.5°	5.76
12	37.1°	5.04	162.5°	6.37
14	36.8°	5.1	180°	6.93
16	36.6°	5.16	180°	7.41
20	37.1°	5.17	148°	8.54

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°	5.56	6.48	6.85	6.99	7.05	7.09	7.19
60°	5.86	6.66	7.02	7.20	7.29	7.34	7.51
75°	6.10	6.80	7.18	7.52	7.74	7.86	7.99
90°	6.03	6.84	7.20	7.62	8.03	8.35	8.66
110°	6.09	6.98	7.51	7.90	8.23	8.56	9.26
120°	5.94	6.90	7.49	8.11	8.59	8.99	9.85
135°	5.38	6.55	7.15	7.74	8.41	9.22	11.06
150°	4.57	5.70	6.61	7.15	7.70	8.30	9.87