Overstag — ORC Rating

GPH

623.7

OSN

607.2

LOA

11.9 m

Displacement

8564 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7348

Medium

0.9854

High

1.1336

Triple Offshore

Low

0.9478

Medium

1.2209

High

1.3583

Boat Specifications

Dimensions

Length overall: 11.9 m
Beam: 3.83 m
Draft: 2.1 m
Displacement: 8564 kg
Crew weight: 175 kg
Wetted surface: 33.29 m²

Sails

Mainsail: 46.9 m²
Genoa: 44.73 m²
Spinnaker: 101.45 m²
Asymmetric spinnaker: 84.99 m²

Design

Type: Elan 40x2.05
Builder: Elan Yachts
Designer: R. Humphreys
Year built: 2003

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.

6,42.8,4.756519,52,5.3,60,5.59,75,5.84,90,5.8,110,5.63,120,5.48,135,4.97,144.8,4.442297,150,4.19
8,41,5.525304,52,6.24,60,6.55,75,6.8,90,6.78,110,6.79,120,6.63,135,6.08,149.9,5.282312,150,5.28
10,41,6.14806,52,6.89,60,7.14,75,7.33,90,7.38,110,7.47,120,7.39,135,7,150,6.22,151.8,6.115941
12,41,6.505814,52,7.2,60,7.41,75,7.6,90,7.68,110,7.83,120,7.79,135,7.54,150,7.03,155.3,6.758332
14,40.4,6.618183,52,7.31,60,7.54,75,7.78,90,7.89,110,8.13,120,8.11,135,7.89,150,7.53,171.2,6.870881
16,40.1,6.667352,52,7.37,60,7.6,75,7.9,90,8.08,110,8.4,120,8.45,135,8.23,150,7.86,180,7.35
20,40,6.696739,52,7.39,60,7.63,75,8,90,8.41,110,8.73,120,9.09,135,9,150,8.54,180,8.02

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.3	5.59	5.84	5.8	5.63	5.48	4.97	4.19
8	6.24	6.55	6.8	6.78	6.79	6.63	6.08	5.28
10	6.89	7.14	7.33	7.38	7.47	7.39	7	6.22
12	7.2	7.41	7.6	7.68	7.83	7.79	7.54	7.03
14	7.31	7.54	7.78	7.89	8.13	8.11	7.89	7.53
16	7.37	7.6	7.9	8.08	8.4	8.45	8.23	7.86
20	7.39	7.63	8	8.41	8.73	9.09	9	8.54

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.49	144.8°	3.63
8	41°	4.17	149.9°	4.57
10	41°	4.64	151.8°	5.39
12	41°	4.91	155.3°	6.14
14	40.4°	5.04	171.2°	6.79
16	40.1°	5.1	180°	7.35
20	40°	5.13	180°	8.02

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