ALTER EGO III — ORC Rating

GPH

607

OSN

588.6

LOA

13.015 m

Displacement

7870 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7325

Medium

1.017

High

1.1856

Triple Offshore

Low

0.9527

Medium

1.2641

High

1.4294

Boat Specifications

Dimensions

Length overall: 13.015 m
Beam: 3.99 m
Draft: 1.91 m
Displacement: 7870 kg
Crew weight: 850 kg
Wetted surface: 33.62 m²

Sails

Mainsail: 42.1 m²
Genoa: 60.85 m²
Spinnaker: 116.04 m²
Asymmetric spinnaker: 0 m²

Design

Type: ELAN 43
Builder: ELAN
Designer: JAKOPIN
Year built: 1988

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.

6,44.5,4.82299,52,5.33,60,5.67,75,5.97,90,5.93,110,5.59,120,5.45,135,4.95,145.2,4.396278,150,4.16
8,43.1,5.73845,52,6.4,60,6.77,75,7.05,90,7.04,110,6.88,120,6.73,135,6.18,148.9,5.360477,150,5.3
10,42.6,6.507294,52,7.18,60,7.43,75,7.61,90,7.64,110,7.68,120,7.59,135,7.19,149.4,6.3666,150,6.33
12,41.2,6.857918,52,7.53,60,7.73,75,7.92,90,7.98,110,8.12,120,8.06,135,7.78,150,7.21,154,7.009392
14,40.1,6.981109,52,7.67,60,7.88,75,8.15,90,8.28,110,8.51,120,8.5,135,8.19,150,7.76,163.1,7.24279
16,40,7.075308,52,7.74,60,7.97,75,8.33,90,8.56,110,8.88,120,8.95,135,8.63,150,8.14,180,7.52
20,40.3,7.11974,52,7.78,60,8.03,75,8.51,90,9,110,9.31,120,9.75,135,9.6,150,8.97,180,8.29

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.33	5.67	5.97	5.93	5.59	5.45	4.95	4.16
8	6.4	6.77	7.05	7.04	6.88	6.73	6.18	5.3
10	7.18	7.43	7.61	7.64	7.68	7.59	7.19	6.33
12	7.53	7.73	7.92	7.98	8.12	8.06	7.78	7.21
14	7.67	7.88	8.15	8.28	8.51	8.5	8.19	7.76
16	7.74	7.97	8.33	8.56	8.88	8.95	8.63	8.14
20	7.78	8.03	8.51	9	9.31	9.75	9.6	8.97

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.5°	3.44	145.2°	3.61
8	43.1°	4.19	148.9°	4.59
10	42.6°	4.79	149.4°	5.48
12	41.2°	5.16	154°	6.3
14	40.1°	5.34	163.1°	6.93
16	40°	5.42	180°	7.52
20	40.3°	5.43	180°	8.29

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