Kårstua — ORC Rating

GPH

647

OSN

630

LOA

9.25 m

Displacement

4015 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6328

Medium

0.8482

High

0.9609

Triple Offshore

Low

0.8177

Medium

1.0439

High

1.1563

Boat Specifications

Dimensions

Length overall: 9.25 m
Beam: 3.2 m
Draft: 2.17 m
Displacement: 4015 kg
Crew weight: 576 kg
Wetted surface: 22.52 m²

Sails

Mainsail: 30.81 m²
Genoa: 25.24 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 94.15 m²

Design

Type: Elan 310 2.15
Builder: Elan
Designer: Humphreys Rob
Year built: 2009

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.

6,42.8,4.456681,52,4.99,60,5.27,75,5.48,90,5.64,110,5.74,120,5.57,135,4.96,145,4.455827,150,4.21
8,40.9,5.212651,52,5.88,60,6.17,75,6.38,90,6.63,110,6.74,120,6.64,135,6.14,148,5.365262,150,5.26
10,40.5,5.878439,52,6.5,60,6.68,75,6.82,90,7.02,110,7.2,120,7.13,135,6.87,148,6.332188,150,6.2
12,39,6.189314,52,6.8,60,6.95,75,7.09,90,7.17,110,7.57,120,7.56,135,7.27,150,6.77,150.5,6.744369
14,38.2,6.260682,52,6.9,60,7.09,75,7.31,90,7.38,110,7.83,120,8.02,135,7.71,150,7.09,174,6.304537
16,38.1,6.302935,52,6.95,60,7.15,75,7.47,90,7.65,110,8.04,120,8.41,135,8.2,150,7.36,177,6.779291
20,37.9,6.374479,52,7,60,7.18,75,7.58,90,8.06,110,8.44,120,8.93,135,9.36,150,8.18,177.5,7.40705

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.99	5.27	5.48	5.64	5.74	5.57	4.96	4.21
8	5.88	6.17	6.38	6.63	6.74	6.64	6.14	5.26
10	6.5	6.68	6.82	7.02	7.2	7.13	6.87	6.2
12	6.8	6.95	7.09	7.17	7.57	7.56	7.27	6.77
14	6.9	7.09	7.31	7.38	7.83	8.02	7.71	7.09
16	6.95	7.15	7.47	7.65	8.04	8.41	8.2	7.36
20	7	7.18	7.58	8.06	8.44	8.93	9.36	8.18

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.27	145°	3.65
8	40.9°	3.94	148°	4.55
10	40.5°	4.47	148°	5.37
12	39°	4.81	150.5°	5.87
14	38.2°	4.92	174°	6.27
16	38.1°	4.96	177°	6.77
20	37.9°	5.03	177.5°	7.4

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