Plan B — ORC Rating | RegattaPages

GPH

679.9

OSN

662.3

LOA

9.2 m

Displacement

4500 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5962

Medium

0.8059

High

0.9307

Triple Offshore

Low

0.7767

Medium

0.9934

High

1.1065

Boat Specifications

Dimensions

Length overall: 9.2 m
Beam: 3.2 m
Draft: 1.91 m
Displacement: 4500 kg
Crew weight: 360 kg
Wetted surface: 20.86 m²

Sails

Mainsail: 29.51 m²
Genoa: 24.67 m²
Spinnaker: 59.76 m²
Asymmetric spinnaker: 0 m²

Design

Type: Elan 31
Builder: Elan Marine
Designer: Rob Humphreys
Year built: 2002
Stability index: 113

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.

6,44.2,4.421751,52,4.9,60,5.25,75,5.65,90,5.72,110,5.16,120,5,135,4.52,146,4.016706,150,3.84
8,42.9,5.173758,52,5.8,60,6.15,75,6.44,90,6.47,110,6.21,120,6.06,135,5.53,150,4.85,151.4,4.783692
10,42.9,5.733453,52,6.31,60,6.55,75,6.77,90,6.81,110,6.74,120,6.67,135,6.36,150,5.72,152.9,5.582935
12,40,5.926549,52,6.51,60,6.73,75,6.97,90,7.05,110,7.06,120,7.01,135,6.79,150,6.42,159.2,6.065302
14,39,6.04777,52,6.64,60,6.82,75,7.11,90,7.28,110,7.36,120,7.32,135,7.1,150,6.81,173.6,6.299257
16,38.4,6.086564,52,6.71,60,6.89,75,7.19,90,7.49,110,7.62,120,7.67,135,7.44,150,7.1,179,6.691019
20,38.8,6.107748,52,6.75,60,6.96,75,7.32,90,7.76,110,8.2,120,8.27,135,8.17,150,7.77,179,7.271107

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.9	5.25	5.65	5.72	5.16	5	4.52	3.84
8	5.8	6.15	6.44	6.47	6.21	6.06	5.53	4.85
10	6.31	6.55	6.77	6.81	6.74	6.67	6.36	5.72
12	6.51	6.73	6.97	7.05	7.06	7.01	6.79	6.42
14	6.64	6.82	7.11	7.28	7.36	7.32	7.1	6.81
16	6.71	6.89	7.19	7.49	7.62	7.67	7.44	7.1
20	6.75	6.96	7.32	7.76	8.2	8.27	8.17	7.77

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.17	146°	3.33
8	42.9°	3.79	151.4°	4.2
10	42.9°	4.2	152.9°	4.97
12	40°	4.54	159.2°	5.67
14	39°	4.7	173.6°	6.26
16	38.4°	4.77	179°	6.69
20	38.8°	4.76	179°	7.27

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