Duppen — ORC Rating | RegattaPages

GPH

681.8

OSN

659.8

LOA

9.47 m

Displacement

4332 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5971

Medium

0.8161

High

0.9399

Triple Offshore

Low

0.7672

Medium

0.9953

High

1.1089

Boat Specifications

Dimensions

Length overall: 9.47 m
Beam: 3.3 m
Draft: 1.91 m
Displacement: 4332 kg
Crew weight: 543 kg
Wetted surface: 21.19 m²

Sails

Mainsail: 28.76 m²
Genoa: 25.21 m²
Spinnaker: 55.94 m²
Asymmetric spinnaker: 0 m²

Design

Type: ELAN 31
Builder: Elan marine
Designer: Rob Huphrey
Year built: 2003
Stability index: 112

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.

6,43,4.416468,52,4.91,60,5.15,75,5.29,90,5.17,110,5.12,120,4.93,135,4.41,145.7,3.909946,150,3.73
8,40.8,5.165159,52,5.78,60,6.01,75,6.15,90,6.11,110,6.16,120,5.99,135,5.46,150,4.78,150.5,4.756676
10,39.4,5.68113,52,6.29,60,6.46,75,6.59,90,6.64,110,6.72,120,6.62,135,6.27,150,5.66,154.1,5.469354
12,38.2,5.942558,52,6.56,60,6.71,75,6.85,90,6.93,110,7.06,120,6.99,135,6.74,150,6.34,160.4,5.955051
14,37.6,6.045769,52,6.69,60,6.86,75,7.04,90,7.1,110,7.36,120,7.3,135,7.07,150,6.76,173.6,6.238881
16,37.5,6.113291,52,6.76,60,6.94,75,7.19,90,7.29,110,7.62,120,7.61,135,7.39,150,7.07,179,6.641011
20,37.6,6.171985,52,6.82,60,7.02,75,7.36,90,7.62,110,7.98,120,8.2,135,8.07,150,7.69,179,7.251104

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.91	5.15	5.29	5.17	5.12	4.93	4.41	3.73
8	5.78	6.01	6.15	6.11	6.16	5.99	5.46	4.78
10	6.29	6.46	6.59	6.64	6.72	6.62	6.27	5.66
12	6.56	6.71	6.85	6.93	7.06	6.99	6.74	6.34
14	6.69	6.86	7.04	7.1	7.36	7.3	7.07	6.76
16	6.76	6.94	7.19	7.29	7.62	7.61	7.39	7.07
20	6.82	7.02	7.36	7.62	7.98	8.2	8.07	7.69

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43°	3.23	145.7°	3.23
8	40.8°	3.91	150.5°	4.14
10	39.4°	4.39	154.1°	4.92
12	38.2°	4.67	160.4°	5.61
14	37.6°	4.79	173.6°	6.2
16	37.5°	4.85	179°	6.64
20	37.6°	4.89	179°	7.25

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