Isola II: ORC Rating

GPH

674

OSN

657.5

LOA

9.27 m

Displacement

3100 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6018

Medium

0.8144

High

0.9237

Triple Offshore

Low

0.7831

Medium

1.0034

High

1.1118

Boat Specifications

Dimensions

Length overall: 9.27 m
Beam: 2.82 m
Draft: 1.4 m
Displacement: 3100 kg
Crew weight: 400 kg
Wetted surface: 18.07 m²

Sails

Mainsail: 25.84 m²
Genoa: 25.22 m²
Spinnaker: 59.9 m²
Asymmetric spinnaker: 0 m²

Design

Type: Sunwind 30
Builder: Oy Sunwind Ab
Designer: Ulf Rogeberg
Year built: 1991

Performance data

Polar CSV

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

6,43.9,4.39941,52,4.91,60,5.23,75,5.51,90,5.43,110,5.36,120,5.2,135,4.69,146,4.064954,150,3.89
8,42.8,5.219905,52,5.82,60,6.11,75,6.33,90,6.32,110,6.4,120,6.29,135,5.77,150,4.93,150.5,4.894551
10,42,5.759308,52,6.35,60,6.54,75,6.7,90,6.73,110,6.87,120,6.82,135,6.55,150,5.888973
12,41.2,5.967452,52,6.55,60,6.74,75,6.93,90,6.98,110,7.23,120,7.2,135,6.96,150,6.58,160,6.214798
14,40.7,6.041146,52,6.63,60,6.84,75,7.11,90,7.22,110,7.57,120,7.61,135,7.34,150,6.96,180,6.43
16,40.5,6.062551,52,6.67,60,6.88,75,7.23,90,7.46,110,7.78,120,8.03,135,7.78,150,7.31,180,6.84
20,41.4,6.145757,52,6.69,60,6.9,75,7.33,90,7.81,110,8.16,120,8.6,135,8.8,150,8.16,180,7.54

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.23	5.51	5.43	5.36	5.2	4.69	3.89
8	5.82	6.11	6.33	6.32	6.4	6.29	5.77	4.93
10	6.35	6.54	6.7	6.73	6.87	6.82	6.55	5.89
12	6.55	6.74	6.93	6.98	7.23	7.2	6.96	6.58
14	6.63	6.84	7.11	7.22	7.57	7.61	7.34	6.96
16	6.67	6.88	7.23	7.46	7.78	8.03	7.78	7.31
20	6.69	6.9	7.33	7.81	8.16	8.6	8.8	8.16

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.9°	3.17	146°	3.37
8	42.8°	3.83	150.5°	4.26
10	42°	4.28	150°	5.1
12	41.2°	4.49	160°	5.84
14	40.7°	4.58	180°	6.43
16	40.5°	4.61	180°	6.84
20	41.4°	4.61	180°	7.54

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°	4.91	5.82	6.35	6.55	6.63	6.67	6.69
60°	5.23	6.11	6.54	6.74	6.84	6.88	6.90
75°	5.51	6.33	6.70	6.93	7.11	7.23	7.33
90°	5.43	6.32	6.73	6.98	7.22	7.46	7.81
110°	5.36	6.40	6.87	7.23	7.57	7.78	8.16
120°	5.20	6.29	6.82	7.20	7.61	8.03	8.60
135°	4.69	5.77	6.55	6.96	7.34	7.78	8.80
150°	3.89	4.93	5.89	6.58	6.96	7.31	8.16