Hamba — ORC Rating | RegattaPages

GPH

762.9

OSN

743

LOA

7.53 m

Displacement

1800 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6275

Medium

0.8245

High

0.9174

Triple Offshore

Low

0.7948

Medium

0.9884

High

1.0811

Boat Specifications

Dimensions

Length overall: 7.53 m
Beam: 2.64 m
Draft: 1.48 m
Displacement: 1800 kg
Crew weight: 300 kg
Wetted surface: 12.08 m²

Sails

Mainsail: 13.66 m²
Genoa: 19.82 m²
Spinnaker: 42.4 m²
Asymmetric spinnaker: 35.37 m²

Design

Type: Elvstrom 1/4 Ton
Builder: Elvstrom & Kjareul
Designer: Elvstrom
Year built: 1977

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.

6,40.7,3.891131,52,4.41,60,4.62,75,4.77,90,4.7,110,4.73,120,4.6,135,4.22,149.2,3.702152,150,3.67
8,40.9,4.604067,52,5.13,60,5.28,75,5.39,90,5.43,110,5.5,120,5.42,135,5.11,150,4.53,151.9,4.443805
10,39,4.97976,52,5.45,60,5.55,75,5.65,90,5.76,110,5.84,120,5.8,135,5.61,150,5.26,155.9,5.03925
12,37.9,5.145206,52,5.61,60,5.72,75,5.84,90,6.01,110,6.15,120,6.11,135,5.92,150,5.66,180,5.2
14,37.5,5.218356,52,5.71,60,5.85,75,6.02,90,6.15,110,6.43,120,6.43,135,6.24,150,5.94,180,5.61
16,37.5,5.243565,52,5.75,60,5.92,75,6.17,90,6.29,110,6.66,120,6.71,135,6.56,150,6.23,180,5.88
20,38.6,5.233388,52,5.75,60,5.96,75,6.33,90,6.59,110,6.9,120,7.09,135,7.1,150,6.81,180,6.44

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.41	4.62	4.77	4.7	4.73	4.6	4.22	3.67
8	5.13	5.28	5.39	5.43	5.5	5.42	5.11	4.53
10	5.45	5.55	5.65	5.76	5.84	5.8	5.61	5.26
12	5.61	5.72	5.84	6.01	6.15	6.11	5.92	5.66
14	5.71	5.85	6.02	6.15	6.43	6.43	6.24	5.94
16	5.75	5.92	6.17	6.29	6.66	6.71	6.56	6.23
20	5.75	5.96	6.33	6.59	6.9	7.09	7.1	6.81

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	40.7°	2.95	149.2°	3.18
8	40.9°	3.48	151.9°	3.92
10	39°	3.87	155.9°	4.6
12	37.9°	4.06	180°	5.2
14	37.5°	4.14	180°	5.61
16	37.5°	4.16	180°	5.88
20	38.6°	4.09	180°	6.44

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