Hamba — ORC Rating | RegattaPages

GPH

770.2

OSN

749.2

LOA

7.53 m

Displacement

1801 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.56

Medium

0.7254

High

0.8036

Triple Offshore

Low

0.7047

Medium

0.8684

High

0.9447

Boat Specifications

Dimensions

Length overall: 7.53 m
Beam: 2.64 m
Draft: 1.48 m
Displacement: 1801 kg
Crew weight: 260 kg
Wetted surface: 11.85 m²

Sails

Mainsail: 13.66 m²
Genoa: 19.82 m²
Spinnaker: 43.1 m²
Asymmetric spinnaker: 36.1 m²

Design

Type: Elvstrom 1/4 Ton
Builder: Elvstrom & Kjareul
Designer: Elvstrom
Year built: 1977
Stability index: 110

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.

6,41.4,4.012739,52,4.47,60,4.64,75,4.72,90,4.62,110,4.67,120,4.55,135,4.16,148.4,3.663146,150,3.6
8,39.4,4.59408,52,5.1,60,5.23,75,5.31,90,5.33,110,5.42,120,5.35,135,5.03,150,4.5,152.3,4.404821
10,37.8,4.897773,52,5.4,60,5.51,75,5.6,90,5.68,110,5.79,120,5.76,135,5.57,150,5.2,156.9,4.968355
12,37.8,5.049642,52,5.55,60,5.66,75,5.79,90,5.89,110,6.08,120,6.07,135,5.91,150,5.64,171.2,5.191108
14,37.6,5.099145,52,5.62,60,5.76,75,5.94,90,6.03,110,6.32,120,6.34,135,6.22,150,5.94,178.1,5.553053
16,37.8,5.138232,52,5.66,60,5.81,75,6.05,90,6.18,110,6.52,120,6.59,135,6.51,150,6.23,179,5.860893
20,38.7,5.176631,52,5.68,60,5.85,75,6.16,90,6.41,110,6.8,120,7.05,135,7.1,150,6.8,179,6.390973

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.47	4.64	4.72	4.62	4.67	4.55	4.16	3.6
8	5.1	5.23	5.31	5.33	5.42	5.35	5.03	4.5
10	5.4	5.51	5.6	5.68	5.79	5.76	5.57	5.2
12	5.55	5.66	5.79	5.89	6.08	6.07	5.91	5.64
14	5.62	5.76	5.94	6.03	6.32	6.34	6.22	5.94
16	5.66	5.81	6.05	6.18	6.52	6.59	6.51	6.23
20	5.68	5.85	6.16	6.41	6.8	7.05	7.1	6.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.4°	3.01	148.4°	3.12
8	39.4°	3.55	152.3°	3.9
10	37.8°	3.87	156.9°	4.57
12	37.8°	3.99	171.2°	5.13
14	37.6°	4.04	178.1°	5.55
16	37.8°	4.06	179°	5.86
20	38.7°	4.04	179°	6.39

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