Alna II — ORC Rating | RegattaPages

GPH

650.4

OSN

635.5

LOA

10.35 m

Displacement

5263 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7087

Medium

0.9467

High

1.0675

Triple Offshore

Low

0.9176

Medium

1.1671

High

1.2854

Boat Specifications

Dimensions

Length overall: 10.35 m
Beam: 3.41 m
Draft: 1.62 m
Displacement: 5263 kg
Crew weight: 600 kg
Wetted surface: 24.28 m²

Sails

Mainsail: 33.48 m²
Genoa: 40.27 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 82.39 m²

Design

Type: Hanse 341
Builder: Hanse Yachtbau
Designer: Judel/Vrolijk
Year built: 2001

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.

6,43.7,4.592187,52,5.11,60,5.44,75,5.73,90,5.68,110,5.54,120,5.37,135,4.86,145.8,4.316387,150,4.12
8,42.7,5.374774,52,6.02,60,6.34,75,6.56,90,6.57,110,6.61,120,6.46,135,5.92,150,5.16,150.6,5.130773
10,42.7,6.041518,52,6.6,60,6.8,75,6.95,90,7.01,110,7.1,120,7.02,135,6.72,150,6.06,152,5.957318
12,41.5,6.235349,52,6.83,60,7.02,75,7.19,90,7.26,110,7.45,120,7.38,135,7.14,150,6.75,158.7,6.396969
14,41,6.307062,52,6.91,60,7.11,75,7.37,90,7.48,110,7.79,120,7.75,135,7.48,150,7.14,180,6.58
16,40.9,6.323977,52,6.94,60,7.16,75,7.49,90,7.71,110,8.08,120,8.14,135,7.86,150,7.46,180,7.01
20,41.8,6.304697,52,6.91,60,7.16,75,7.57,90,8.05,110,8.41,120,8.8,135,8.68,150,8.19,180,7.65

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.11	5.44	5.73	5.68	5.54	5.37	4.86	4.12
8	6.02	6.34	6.56	6.57	6.61	6.46	5.92	5.16
10	6.6	6.8	6.95	7.01	7.1	7.02	6.72	6.06
12	6.83	7.02	7.19	7.26	7.45	7.38	7.14	6.75
14	6.91	7.11	7.37	7.48	7.79	7.75	7.48	7.14
16	6.94	7.16	7.49	7.71	8.08	8.14	7.86	7.46
20	6.91	7.16	7.57	8.05	8.41	8.8	8.68	8.19

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.7°	3.32	145.8°	3.57
8	42.7°	3.95	150.6°	4.47
10	42.7°	4.44	152°	5.26
12	41.5°	4.67	158.7°	5.96
14	41°	4.76	180°	6.58
16	40.9°	4.78	180°	7.01
20	41.8°	4.7	180°	7.65

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