IMALIZARD: ORC Rating

GPH

509.6

OSN

494

LOA

12.2 m

Displacement

4696 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.8893

Medium

1.1994

High

1.419

Triple Offshore

Low

1.1522

Medium

1.4873

High

1.7533

Boat Specifications

Dimensions

Length overall: 12.2 m
Beam: 3.8 m
Draft: 3 m
Displacement: 4696 kg
Crew weight: 817 kg
Wetted surface: 31.95 m²

Sails

Mainsail: 63.07 m²
Genoa: 33.72 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 170.18 m²

Design

Type: welbourn 12M
Builder: Geoff Cruze
Designer: Hugh Welborn
Year built: 2006

Performance data

Polar CSV

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

6,42.9,5.624244,52,6.32,60,6.75,75,7.14,90,7.12,110,7.17,120,6.93,135,6.15,142,5.647131,150,5.14
8,42,6.808902,52,7.57,60,7.84,75,8.06,90,8.09,110,8.24,120,8.13,135,7.65,143.4,6.98789,150,6.48
10,38.8,7.3139,52,8.05,60,8.29,75,8.64,90,8.67,110,8.94,120,8.98,135,8.4,149.7,7.597908,150,7.57
12,36.1,7.586729,52,8.44,60,8.75,75,9.19,90,9.43,110,9.78,120,9.69,135,9.25,150,8.36,152.6,8.132321
14,34.4,7.695911,52,8.71,60,9.15,75,9.8,90,10.15,110,10.36,120,10.78,135,10.32,148.8,9.09554,150,8.98
16,33.4,7.749915,52,8.9,60,9.4,75,10.3,90,10.78,110,10.95,120,11.49,135,11.58,145.8,10.325475,150,9.86
20,32.6,7.893621,52,9.2,60,9.7,75,10.82,90,12.11,110,12.47,120,12.96,135,14.15,142.3,13.725578,150,12.53

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	6.32	6.75	7.14	7.12	7.17	6.93	6.15	5.14
8	7.57	7.84	8.06	8.09	8.24	8.13	7.65	6.48
10	8.05	8.29	8.64	8.67	8.94	8.98	8.4	7.57
12	8.44	8.75	9.19	9.43	9.78	9.69	9.25	8.36
14	8.71	9.15	9.8	10.15	10.36	10.78	10.32	8.98
16	8.9	9.4	10.3	10.78	10.95	11.49	11.58	9.86
20	9.2	9.7	10.82	12.11	12.47	12.96	14.15	12.53

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	4.12	142°	4.45
8	42°	5.06	143.4°	5.61
10	38.8°	5.7	149.7°	6.56
12	36.1°	6.13	152.6°	7.22
14	34.4°	6.35	148.8°	7.78
16	33.4°	6.47	145.8°	8.54
20	32.6°	6.65	142.3°	10.86

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°	6.32	7.57	8.05	8.44	8.71	8.90	9.20
60°	6.75	7.84	8.29	8.75	9.15	9.40	9.70
75°	7.14	8.06	8.64	9.19	9.80	10.30	10.82
90°	7.12	8.09	8.67	9.43	10.15	10.78	12.11
110°	7.17	8.24	8.94	9.78	10.36	10.95	12.47
120°	6.93	8.13	8.98	9.69	10.78	11.49	12.96
135°	6.15	7.65	8.40	9.25	10.32	11.58	14.15
150°	5.14	6.48	7.57	8.36	8.98	9.86	12.53