WALKABOUT — ORC Rating

GPH

648.6

OSN

633.1

LOA

9.98 m

Displacement

3800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6546

Medium

0.8473

High

0.9402

Triple Offshore

Low

0.8354

Medium

1.0319

High

1.1265

Boat Specifications

Dimensions

Length overall: 9.98 m
Beam: 3.56 m
Draft: 1.91 m
Displacement: 3800 kg
Crew weight: 480 kg
Wetted surface: 21.26 m²

Sails

Mainsail: 27.96 m²
Genoa: 37.47 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 82.04 m²

Design

Type: Isola 34
Builder: Politi
Designer: Fontana/Maletto/Navona
Year built: 1982

Velocity Prediction

Polar CSV

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

6,42.7,4.830493,52,5.39,60,5.64,75,5.81,90,5.7,110,5.57,120,5.41,135,4.86,144,4.412763,150,4.12
8,40.4,5.580809,52,6.16,60,6.33,75,6.43,90,6.4,110,6.47,120,6.37,135,5.97,147.6,5.35337,150,5.21
10,38.3,5.937997,52,6.53,60,6.66,75,6.77,90,6.8,110,6.93,120,6.87,135,6.61,148.8,6.114354,150,6.04
12,37.5,6.100686,52,6.71,60,6.85,75,7,90,7.04,110,7.27,120,7.24,135,7.01,150,6.512511
14,37.1,6.16863,52,6.79,60,6.95,75,7.17,90,7.26,110,7.58,120,7.61,135,7.38,150,6.82,171.8,6.102389
16,37.2,6.201901,52,6.82,60,7,75,7.28,90,7.47,110,7.84,120,7.98,135,7.77,150,7.08,175.4,6.510973
20,37.6,6.247715,52,6.87,60,7.07,75,7.41,90,7.76,110,8.25,120,8.75,135,8.7,150,7.63,176.8,7.101072
24,39.1,6.249626,52,6.84,60,7.08,75,7.5,90,7.96,110,8.63,120,9.39,135,10.3,150,8.29,176.2,7.646812

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.39	5.64	5.81	5.7	5.57	5.41	4.86	4.12
8	6.16	6.33	6.43	6.4	6.47	6.37	5.97	5.21
10	6.53	6.66	6.77	6.8	6.93	6.87	6.61	6.04
12	6.71	6.85	7	7.04	7.27	7.24	7.01	6.51
14	6.79	6.95	7.17	7.26	7.58	7.61	7.38	6.82
16	6.82	7	7.28	7.47	7.84	7.98	7.77	7.08
20	6.87	7.07	7.41	7.76	8.25	8.75	8.7	7.63
24	6.84	7.08	7.5	7.96	8.63	9.39	10.3	8.29

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.7°	3.55	144°	3.57
8	40.4°	4.25	147.6°	4.52
10	38.3°	4.66	148.8°	5.23
12	37.5°	4.84	150°	5.64
14	37.1°	4.92	171.8°	6.04
16	37.2°	4.94	175.4°	6.49
20	37.6°	4.95	176.8°	7.09
24	39.1°	4.85	176.2°	7.63

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