Alpha Crucis — ORC Rating

GPH

677.1

OSN

660.4

LOA

9.595 m

Displacement

2008 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6044

Medium

0.8059

High

0.9117

Triple Offshore

Low

0.7855

Medium

0.9955

High

1.1041

Boat Specifications

Dimensions

Length overall: 9.595 m
Beam: 1.9 m
Draft: 1.35 m
Displacement: 2008 kg
Crew weight: 250 kg
Wetted surface: 12.45 m²

Sails

Mainsail: 21.67 m²
Genoa: 11.15 m²
Spinnaker: 47.21 m²
Asymmetric spinnaker: 0 m²

Design

Type: International 5.5
Builder: Yachtwerft Christo
Designer: Sebastian Schmidt
Year built: 1949
Stability index: 140.8

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.

6,43.2,4.307456,52,4.8,60,5.09,75,5.35,90,5.44,110,5.55,120,5.39,135,4.8,144.2,4.229014,150,3.97
8,41.8,5.070586,52,5.72,60,6,75,6.21,90,6.32,110,6.49,120,6.42,135,5.97,147.8,5.152488,150,5.04
10,41.8,5.593741,52,6.2,60,6.42,75,6.6,90,6.66,110,6.93,120,6.92,135,6.67,150,6.02,150.1,6.021478
12,41.8,5.808369,52,6.39,60,6.62,75,6.85,90,6.96,110,7.19,120,7.37,135,7.12,150,6.69,159.2,6.343429
14,41.7,5.879689,52,6.47,60,6.72,75,7.05,90,7.24,110,7.42,120,7.7,135,7.62,150,7.13,174.8,6.516821
16,40.8,5.904926,52,6.47,60,6.77,75,7.19,90,7.51,110,7.63,120,7.97,135,8.19,150,7.6,177.2,6.918259
20,42.4,6.053176,52,6.6,60,6.87,75,7.2,90,7.91,110,8.08,120,8.5,135,9.49,150,8.84,174.8,7.822193

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.8	5.09	5.35	5.44	5.55	5.39	4.8	3.97
8	5.72	6	6.21	6.32	6.49	6.42	5.97	5.04
10	6.2	6.42	6.6	6.66	6.93	6.92	6.67	6.02
12	6.39	6.62	6.85	6.96	7.19	7.37	7.12	6.69
14	6.47	6.72	7.05	7.24	7.42	7.7	7.62	7.13
16	6.47	6.77	7.19	7.51	7.63	7.97	8.19	7.6
20	6.6	6.87	7.2	7.91	8.08	8.5	9.49	8.84

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.14	144.2°	3.43
8	41.8°	3.78	147.8°	4.36
10	41.8°	4.17	150.1°	5.22
12	41.8°	4.33	159.2°	5.93
14	41.7°	4.39	174.8°	6.49
16	40.8°	4.47	177.2°	6.91
20	42.4°	4.47	174.8°	7.79

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