Indaba — ORC Rating | RegattaPages

GPH

704.7

OSN

683.3

LOA

10.49 m

Displacement

5205 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6339

Medium

0.8715

High

1.0413

Triple Offshore

Low

0.8204

Medium

1.0863

High

1.2457

Boat Specifications

Dimensions

Length overall: 10.49 m
Beam: 3.25 m
Draft: 1.8 m
Displacement: 5205 kg
Crew weight: 529 kg
Wetted surface: 24.7 m²

Sails

Mainsail: 24.4 m²
Genoa: 31.03 m²
Spinnaker: 75.44 m²
Asymmetric spinnaker: 0 m²

Design

Type: Van De Stadt 34
Builder: H. Vink
Designer: Van De Stadt
Year built: 1983

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.

6,44.3,4.010101,52,4.45,60,4.75,75,5.02,90,5,110,4.99,120,4.86,135,4.44,147.4,3.893395,150,3.79
8,42.8,4.715632,52,5.29,60,5.62,75,5.94,90,5.93,110,6.07,120,5.92,135,5.42,150,4.78,151.3,4.731253
10,42.9,5.310269,52,5.97,60,6.29,75,6.53,90,6.64,110,6.72,120,6.64,135,6.3,150,5.64,152.6,5.507902
12,43.4,5.890654,52,6.43,60,6.66,75,6.83,90,6.99,110,7.08,120,7.01,135,6.79,150,6.38,157,6.072755
14,41.9,6.139902,52,6.69,60,6.88,75,7.05,90,7.14,110,7.4,120,7.33,135,7.11,150,6.8,180,6.22
16,41,6.254061,52,6.82,60,7.03,75,7.25,90,7.29,110,7.72,120,7.67,135,7.42,150,7.1,180,6.69
20,40.8,6.34086,52,6.9,60,7.14,75,7.56,90,7.72,110,8.01,120,8.29,135,8.09,150,7.7,180,7.27

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.45	4.75	5.02	5	4.99	4.86	4.44	3.79
8	5.29	5.62	5.94	5.93	6.07	5.92	5.42	4.78
10	5.97	6.29	6.53	6.64	6.72	6.64	6.3	5.64
12	6.43	6.66	6.83	6.99	7.08	7.01	6.79	6.38
14	6.69	6.88	7.05	7.14	7.4	7.33	7.11	6.8
16	6.82	7.03	7.25	7.29	7.72	7.67	7.42	7.1
20	6.9	7.14	7.56	7.72	8.01	8.29	8.09	7.7

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.3°	2.87	147.4°	3.28
8	42.8°	3.46	151.3°	4.15
10	42.9°	3.89	152.6°	4.89
12	43.4°	4.28	157°	5.59
14	41.9°	4.57	180°	6.22
16	41°	4.72	180°	6.69
20	40.8°	4.8	180°	7.27

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