ALBATROS — ORC Rating

GPH

644.6

OSN

626.9

LOA

12.646 m

Displacement

9660 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7089

Medium

0.9529

High

1.0996

Triple Offshore

Low

0.9118

Medium

1.1837

High

1.3184

Boat Specifications

Dimensions

Length overall: 12.646 m
Beam: 3.47 m
Draft: 2.15 m
Displacement: 9660 kg
Crew weight: 655 kg
Wetted surface: 32.35 m²

Sails

Mainsail: 38.11 m²
Genoa: 62.57 m²
Spinnaker: 120.25 m²
Asymmetric spinnaker: 0 m²

Design

Type: ALPA 12.70
Builder: ALPA
Designer: SPARKMAN&STEPHENS
Year built: 1969

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.

6,43.1,4.574326,52,5.08,60,5.35,75,5.57,90,5.53,110,5.36,120,5.23,135,4.78,146.5,4.245185,150,4.09
8,41.5,5.314066,52,5.99,60,6.32,75,6.57,90,6.55,110,6.54,120,6.4,135,5.87,150,5.13,150.9,5.081416
10,42.3,6.002993,52,6.69,60,6.95,75,7.13,90,7.16,110,7.26,120,7.19,135,6.84,149.7,6.069061,150,6.06
12,42.2,6.371451,52,7,60,7.23,75,7.41,90,7.47,110,7.62,120,7.59,135,7.37,150,6.87,154.7,6.647623
14,41.6,6.499081,52,7.14,60,7.36,75,7.58,90,7.69,110,7.87,120,7.91,135,7.71,150,7.36,169.1,6.751811
16,41.2,6.578817,52,7.21,60,7.43,75,7.71,90,7.87,110,8.02,120,8.22,135,8.04,150,7.68,180,7.17
20,41.7,6.629717,52,7.26,60,7.49,75,7.82,90,8.17,110,8.29,120,8.58,135,8.7,150,8.3,180,7.81

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.08	5.35	5.57	5.53	5.36	5.23	4.78	4.09
8	5.99	6.32	6.57	6.55	6.54	6.4	5.87	5.13
10	6.69	6.95	7.13	7.16	7.26	7.19	6.84	6.06
12	7	7.23	7.41	7.47	7.62	7.59	7.37	6.87
14	7.14	7.36	7.58	7.69	7.87	7.91	7.71	7.36
16	7.21	7.43	7.71	7.87	8.02	8.22	8.04	7.68
20	7.26	7.49	7.82	8.17	8.29	8.58	8.7	8.3

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.34	146.5°	3.54
8	41.5°	3.98	150.9°	4.44
10	42.3°	4.44	149.7°	5.24
12	42.2°	4.72	154.7°	6.01
14	41.6°	4.86	169.1°	6.63
16	41.2°	4.95	180°	7.17
20	41.7°	4.95	180°	7.81

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