Shaka: ORC Rating

GPH

570.2

OSN

554.9

LOA

11.977 m

Displacement

6607 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7248

Medium

0.9621

High

1.0801

Triple Offshore

Low

0.9328

Medium

1.1824

High

1.3091

Boat Specifications

Dimensions

Length overall: 11.977 m
Beam: 3.79 m
Draft: 2.51 m
Displacement: 6607 kg
Crew weight: 739 kg
Wetted surface: 30.18 m²

Sails

Mainsail: 53.48 m²
Genoa: 40.01 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 133.34 m²

Design

Type: Archambault 40 rc
Builder: Archambault 40RC
Designer: Joubert/Nivel
Year built: 2006
Stability index: 132.3

Performance data

Polar CSV

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

6,42.6,5.189533,52,5.8,60,6.12,75,6.38,90,6.31,110,6.34,120,6.18,135,5.55,143.3,5.063761,150,4.69
8,41.2,6.15352,52,6.89,60,7.16,75,7.34,90,7.41,110,7.52,120,7.41,135,6.89,146,6.163774,150,5.9
10,40,6.775064,52,7.46,60,7.65,75,7.79,90,7.81,110,8.06,120,8,135,7.7,149.3,7.012833,150,6.96
12,38.4,6.92873,52,7.68,60,7.88,75,8.08,90,8.14,110,8.44,120,8.5,135,8.19,150,7.65,151.1,7.584545
14,38.2,7.04963,52,7.78,60,7.99,75,8.31,90,8.46,110,8.73,120,9.04,135,8.72,150,8.04,152.3,7.883499
16,37.8,7.112528,52,7.83,60,8.06,75,8.47,90,8.78,110,9.01,120,9.43,135,9.34,150,8.39,173.6,7.526908
20,37.5,7.235112,52,7.96,60,8.18,75,8.64,90,9.27,110,9.54,120,10.14,135,10.99,150,9.24,176.6,8.274565

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.8	6.12	6.38	6.31	6.34	6.18	5.55	4.69
8	6.89	7.16	7.34	7.41	7.52	7.41	6.89	5.9
10	7.46	7.65	7.79	7.81	8.06	8	7.7	6.96
12	7.68	7.88	8.08	8.14	8.44	8.5	8.19	7.65
14	7.78	7.99	8.31	8.46	8.73	9.04	8.72	8.04
16	7.83	8.06	8.47	8.78	9.01	9.43	9.34	8.39
20	7.96	8.18	8.64	9.27	9.54	10.14	10.99	9.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.82	143.3°	4.06
8	41.2°	4.63	146°	5.11
10	40°	5.19	149.3°	6.03
12	38.4°	5.43	151.1°	6.64
14	38.2°	5.54	152.3°	6.98
16	37.8°	5.62	173.6°	7.48
20	37.5°	5.74	176.6°	8.26

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°	5.80	6.89	7.46	7.68	7.78	7.83	7.96
60°	6.12	7.16	7.65	7.88	7.99	8.06	8.18
75°	6.38	7.34	7.79	8.08	8.31	8.47	8.64
90°	6.31	7.41	7.81	8.14	8.46	8.78	9.27
110°	6.34	7.52	8.06	8.44	8.73	9.01	9.54
120°	6.18	7.41	8.00	8.50	9.04	9.43	10.14
135°	5.55	6.89	7.70	8.19	8.72	9.34	10.99
150°	4.69	5.90	6.96	7.65	8.04	8.39	9.24