ALTER EGO — ORC Rating

GPH

584.8

OSN

564.7

LOA

14.302 m

Displacement

14000 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.687

Medium

0.9483

High

1.1137

Triple Offshore

Low

0.8834

Medium

1.165

High

1.3143

Boat Specifications

Dimensions

Length overall: 14.302 m
Beam: 4.65 m
Draft: 2.72 m
Displacement: 14000 kg
Crew weight: 900 kg
Wetted surface: 45.09 m²

Sails

Mainsail: 51.73 m²
Genoa: 58.66 m²
Spinnaker: 152.52 m²
Asymmetric spinnaker: 152.56 m²

Design

Type: ATLANTIC 49
Builder: ATLANTIC
Designer: J & J
Year built: 1989
Stability index: 117.1

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.

6,42.9,5.023597,52,5.6,60,5.88,75,6.05,90,5.9,110,5.89,120,5.71,135,5.11,143.3,4.652174,150,4.31
8,40.6,5.939906,52,6.65,60,6.91,75,7.08,90,7.03,110,7.16,120,6.98,135,6.39,146.9,5.705973,150,5.52
10,39.4,6.612887,52,7.35,60,7.55,75,7.69,90,7.77,110,7.91,120,7.81,135,7.38,147.8,6.676962,150,6.52
12,38.2,7.011455,52,7.74,60,7.91,75,8.04,90,8.17,110,8.32,120,8.27,135,8,150,7.37,154.6,7.118066
14,37.2,7.193703,52,7.96,60,8.13,75,8.28,90,8.4,110,8.64,120,8.61,135,8.39,150,7.94,161.3,7.474581
16,36.9,7.315384,52,8.1,60,8.28,75,8.47,90,8.53,110,8.92,120,8.93,135,8.73,150,8.33,173.6,7.697974
20,36.6,7.43631,52,8.23,60,8.43,75,8.73,90,8.88,110,9.34,120,9.58,135,9.41,150,8.96,179,8.431284

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.6	5.88	6.05	5.9	5.89	5.71	5.11	4.31
8	6.65	6.91	7.08	7.03	7.16	6.98	6.39	5.52
10	7.35	7.55	7.69	7.77	7.91	7.81	7.38	6.52
12	7.74	7.91	8.04	8.17	8.32	8.27	8	7.37
14	7.96	8.13	8.28	8.4	8.64	8.61	8.39	7.94
16	8.1	8.28	8.47	8.53	8.92	8.93	8.73	8.33
20	8.23	8.43	8.73	8.88	9.34	9.58	9.41	8.96

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.68	143.3°	3.73
8	40.6°	4.51	146.9°	4.78
10	39.4°	5.11	147.8°	5.65
12	38.2°	5.51	154.6°	6.43
14	37.2°	5.73	161.3°	7.08
16	36.9°	5.85	173.6°	7.65
20	36.6°	5.97	179°	8.43

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