Ardura — ORC Rating | RegattaPages

GPH

658

OSN

638.8

LOA

9.91 m

Displacement

3510 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6392

Medium

0.846

High

0.9512

Triple Offshore

Low

0.8131

Medium

1.0228

High

1.1226

Boat Specifications

Dimensions

Length overall: 9.91 m
Beam: 3.31 m
Draft: 2.22 m
Displacement: 3510 kg
Crew weight: 400 kg
Wetted surface: 20.66 m²

Sails

Mainsail: 27.92 m²
Genoa: 31.78 m²
Spinnaker: 85.95 m²
Asymmetric spinnaker: 0 m²

Design

Type: Elan 31s
Builder: Elan
Designer: Jakopin
Year built: 1985
Stability index: 119.4

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.

6,41.4,4.625982,52,5.17,60,5.38,75,5.51,90,5.39,110,5.42,120,5.27,135,4.76,145.1,4.243117,150,4.02
8,39.6,5.38602,52,6,60,6.16,75,6.27,90,6.23,110,6.39,120,6.31,135,5.89,149.3,5.140418,150,5.11
10,38.2,5.789858,52,6.4,60,6.55,75,6.66,90,6.67,110,6.86,120,6.85,135,6.6,150,6.04,152.3,5.918272
12,37.6,5.944796,52,6.59,60,6.74,75,6.9,90,6.95,110,7.18,120,7.22,135,7.04,150,6.65,160.1,6.285307
14,37.5,6.037663,52,6.67,60,6.84,75,7.07,90,7.18,110,7.41,120,7.55,135,7.43,150,7.05,173.6,6.490449
16,37.2,6.063802,52,6.72,60,6.9,75,7.17,90,7.36,110,7.58,120,7.85,135,7.82,150,7.42,177.2,6.878212
20,38.1,6.137737,52,6.76,60,6.96,75,7.3,90,7.64,110,7.89,120,8.3,135,8.79,150,8.26,178.4,7.572953

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.17	5.38	5.51	5.39	5.42	5.27	4.76	4.02
8	6	6.16	6.27	6.23	6.39	6.31	5.89	5.11
10	6.4	6.55	6.66	6.67	6.86	6.85	6.6	6.04
12	6.59	6.74	6.9	6.95	7.18	7.22	7.04	6.65
14	6.67	6.84	7.07	7.18	7.41	7.55	7.43	7.05
16	6.72	6.9	7.17	7.36	7.58	7.85	7.82	7.42
20	6.76	6.96	7.3	7.64	7.89	8.3	8.79	8.26

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	41.4°	3.47	145.1°	3.48
8	39.6°	4.15	149.3°	4.42
10	38.2°	4.55	152.3°	5.24
12	37.6°	4.71	160.1°	5.91
14	37.5°	4.79	173.6°	6.45
16	37.2°	4.83	177.2°	6.87
20	38.1°	4.83	178.4°	7.57

Loading polar chart…