SKADI: ORC Rating

GPH

576.1

OSN

559.3

LOA

12.244 m

Displacement

7001 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7051

Medium

0.9573

High

1.0833

Triple Offshore

Low

0.9107

Medium

1.1768

High

1.311

Boat Specifications

Dimensions

Length overall: 12.244 m
Beam: 3.67 m
Draft: 2.17 m
Displacement: 7001 kg
Crew weight: 819 kg
Wetted surface: 32.84 m²

Sails

Mainsail: 46.9 m²
Genoa: 52.78 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 165.29 m²

Design

Type: J 120
Builder: TPI
Designer: Johnstone
Year built: 1994
Stability index: 120.4

Performance data

Polar CSV

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

6,43.6,5.067858,52,5.63,60,5.98,75,6.27,90,6.19,110,6.17,120,6.06,135,5.41,144.2,4.907135,150,4.6
8,42,6.028435,52,6.75,60,7.06,75,7.27,90,7.24,110,7.42,120,7.35,135,6.85,147.3,5.965461,150,5.8
10,41.1,6.767845,52,7.41,60,7.6,75,7.75,90,7.76,110,8.01,120,7.98,135,7.73,147.3,7.130033,150,6.93
12,39.1,6.971233,52,7.66,60,7.85,75,8.04,90,8.09,110,8.38,120,8.48,135,8.23,150,7.71,150.9,7.645013
14,38.1,7.078094,52,7.78,60,7.98,75,8.26,90,8.4,110,8.67,120,8.99,135,8.8,150,8.08,150.9,8.011241
16,37.2,7.118377,52,7.84,60,8.06,75,8.41,90,8.7,110,8.95,120,9.36,135,9.44,150,8.43,171.2,7.467909
20,36.9,7.215344,52,7.91,60,8.14,75,8.6,90,9.15,110,9.47,120,10.05,135,10.99,142.8,10.407644,150,9.57

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.63	5.98	6.27	6.19	6.17	6.06	5.41	4.6
8	6.75	7.06	7.27	7.24	7.42	7.35	6.85	5.8
10	7.41	7.6	7.75	7.76	8.01	7.98	7.73	6.93
12	7.66	7.85	8.04	8.09	8.38	8.48	8.23	7.71
14	7.78	7.98	8.26	8.4	8.67	8.99	8.8	8.08
16	7.84	8.06	8.41	8.7	8.95	9.36	9.44	8.43
20	7.91	8.14	8.6	9.15	9.47	10.05	10.99	9.57

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.6°	3.67	144.2°	3.98
8	42°	4.48	147.3°	5.02
10	41.1°	5.1	147.3°	6
12	39.1°	5.41	150.9°	6.68
14	38.1°	5.57	150.9°	7
16	37.2°	5.67	171.2°	7.38
20	36.9°	5.77	142.8°	8.29

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°	5.63	6.75	7.41	7.66	7.78	7.84	7.91
60°	5.98	7.06	7.60	7.85	7.98	8.06	8.14
75°	6.27	7.27	7.75	8.04	8.26	8.41	8.60
90°	6.19	7.24	7.76	8.09	8.40	8.70	9.15
110°	6.17	7.42	8.01	8.38	8.67	8.95	9.47
120°	6.06	7.35	7.98	8.48	8.99	9.36	10.05
135°	5.41	6.85	7.73	8.23	8.80	9.44	10.99
150°	4.60	5.80	6.93	7.71	8.08	8.43	9.57