Koroo — ORC Rating | RegattaPages

GPH

850.5

OSN

824.1

LOA

5.79 m

Displacement

621 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5284

Medium

0.728

High

0.8613

Triple Offshore

Low

0.6837

Medium

0.8966

High

1.038

Boat Specifications

Dimensions

Length overall: 5.79 m
Beam: 1.96 m
Draft: 0.95 m
Displacement: 621 kg
Crew weight: 264 kg
Wetted surface: 8.37 m²

Sails

Mainsail: 9.8 m²
Genoa: 5.98 m²
Spinnaker: 14.92 m²
Asymmetric spinnaker: 0 m²

Design

Type: Squib
Builder: Oliver Lee
Designer: Oliver Lee
Year built: 1967

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.

6,45.1,3.371718,52,3.68,60,3.92,75,4.08,90,4.25,110,4.26,120,4.11,135,3.66,150,3.175426
8,43.7,3.95592,52,4.4,60,4.65,75,4.83,90,5.06,110,5.06,120,4.95,135,4.52,150,4.01,154.9,3.853931
10,44,4.490228,52,4.91,60,5.08,75,5.25,90,5.45,110,5.45,120,5.37,135,5.14,150,4.75,168.2,4.239594
12,42.6,4.795563,52,5.2,60,5.32,75,5.5,90,5.8,110,5.82,120,5.69,135,5.47,150,5.22,180,4.79
14,40.8,4.953797,52,5.37,60,5.52,75,5.73,90,6.14,110,6.22,120,6.06,135,5.8,150,5.52,180,5.21
16,38.8,5.017079,52,5.5,60,5.7,75,5.95,90,6.4,110,6.64,120,6.46,135,6.17,150,5.83,180,5.5
20,39.2,5.084235,52,5.61,60,5.9,75,6.05,90,6.66,110,7.69,120,7.57,135,7.03,150,6.54,180,6.12

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.68	3.92	4.08	4.25	4.26	4.11	3.66	3.18
8	4.4	4.65	4.83	5.06	5.06	4.95	4.52	4.01
10	4.91	5.08	5.25	5.45	5.45	5.37	5.14	4.75
12	5.2	5.32	5.5	5.8	5.82	5.69	5.47	5.22
14	5.37	5.52	5.73	6.14	6.22	6.06	5.8	5.52
16	5.5	5.7	5.95	6.4	6.64	6.46	6.17	5.83
20	5.61	5.9	6.05	6.66	7.69	7.57	7.03	6.54

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.1°	2.38	150°	2.75
8	43.7°	2.86	154.9°	3.49
10	44°	3.23	168.2°	4.15
12	42.6°	3.53	180°	4.79
14	40.8°	3.75	180°	5.21
16	38.8°	3.91	180°	5.5
20	39.2°	3.94	180°	6.12

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