Duppen — ORC Rating | RegattaPages

GPH

682.3

OSN

662.5

LOA

9.15 m

Displacement

4376 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6717

Medium

0.9128

High

1.0532

Triple Offshore

Low

0.8644

Medium

1.1164

High

1.2476

Boat Specifications

Dimensions

Length overall: 9.15 m
Beam: 3.3 m
Draft: 1.91 m
Displacement: 4376 kg
Crew weight: 543 kg
Wetted surface: 21.63 m²

Sails

Mainsail: 28.76 m²
Genoa: 29.14 m²
Spinnaker: 55.7 m²
Asymmetric spinnaker: 0 m²

Design

Type: ELAN 31
Builder: Elan marine
Designer: Rob Huphrey
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.

6,42.1,4.339764,52,4.89,60,5.15,75,5.34,90,5.28,110,5.11,120,4.93,135,4.45,146.7,3.924349,150,3.79
8,40.4,5.042425,52,5.74,60,6.01,75,6.2,90,6.18,110,6.15,120,5.98,135,5.44,150,4.78,151.6,4.706425
10,40.3,5.690547,52,6.3,60,6.47,75,6.6,90,6.65,110,6.7,120,6.61,135,6.26,150,5.62,154.1,5.424888
12,38.9,5.987846,52,6.56,60,6.71,75,6.84,90,6.94,110,7.02,120,6.95,135,6.71,150,6.32,159.6,5.942715
14,38,6.078597,52,6.69,60,6.85,75,7.03,90,7.11,110,7.34,120,7.26,135,7.02,150,6.72,180,6.21
16,37.7,6.129747,52,6.74,60,6.92,75,7.19,90,7.32,110,7.67,120,7.61,135,7.34,150,7.01,180,6.64
20,38.1,6.137737,52,6.77,60,6.97,75,7.34,90,7.71,110,8.05,120,8.29,135,8.07,150,7.65,180,7.21

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.89	5.15	5.34	5.28	5.11	4.93	4.45	3.79
8	5.74	6.01	6.2	6.18	6.15	5.98	5.44	4.78
10	6.3	6.47	6.6	6.65	6.7	6.61	6.26	5.62
12	6.56	6.71	6.84	6.94	7.02	6.95	6.71	6.32
14	6.69	6.85	7.03	7.11	7.34	7.26	7.02	6.72
16	6.74	6.92	7.19	7.32	7.67	7.61	7.34	7.01
20	6.77	6.97	7.34	7.71	8.05	8.29	8.07	7.65

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.1°	3.22	146.7°	3.28
8	40.4°	3.84	151.6°	4.14
10	40.3°	4.34	154.1°	4.88
12	38.9°	4.66	159.6°	5.57
14	38°	4.79	180°	6.21
16	37.7°	4.85	180°	6.64
20	38.1°	4.83	180°	7.21

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