Jonna — ORC Rating | RegattaPages

GPH

611.2

OSN

592.8

LOA

11.906 m

Displacement

8113 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6642

Medium

0.9041

High

1.0427

Triple Offshore

Low

0.8562

Medium

1.1098

High

1.2361

Boat Specifications

Dimensions

Length overall: 11.906 m
Beam: 3.84 m
Draft: 2.05 m
Displacement: 8113 kg
Crew weight: 742 kg
Wetted surface: 31.7 m²

Sails

Mainsail: 48.71 m²
Genoa: 37.07 m²
Spinnaker: 100.28 m²
Asymmetric spinnaker: 0 m²

Design

Type: Elan 40
Builder: Elan Marine
Designer: HUMPHREYS ROB
Year built: 2002
Stability index: 110.4

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.

6,43.3,4.891637,52,5.44,60,5.74,75,5.94,90,5.81,110,5.74,120,5.56,135,5,143.4,4.521576,150,4.19
8,41.2,5.741513,52,6.43,60,6.69,75,6.86,90,6.8,110,6.9,120,6.74,135,6.18,148.7,5.418634,150,5.34
10,39.9,6.335011,52,7.03,60,7.23,75,7.38,90,7.41,110,7.56,120,7.47,135,7.06,150,6.33,152,6.21781
12,39,6.613944,52,7.32,60,7.51,75,7.68,90,7.71,110,7.93,120,7.9,135,7.62,150,7.11,156.8,6.788989
14,38.4,6.737328,52,7.46,60,7.66,75,7.88,90,7.96,110,8.23,120,8.24,135,8.01,150,7.61,166.4,7.068185
16,38.2,6.82058,52,7.54,60,7.74,75,8.02,90,8.17,110,8.47,120,8.56,135,8.38,150,7.98,177.2,7.418857
20,38.1,6.887481,52,7.61,60,7.82,75,8.17,90,8.48,110,8.77,120,9.11,135,9.11,150,8.69,179,8.131238

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.44	5.74	5.94	5.81	5.74	5.56	5	4.19
8	6.43	6.69	6.86	6.8	6.9	6.74	6.18	5.34
10	7.03	7.23	7.38	7.41	7.56	7.47	7.06	6.33
12	7.32	7.51	7.68	7.71	7.93	7.9	7.62	7.11
14	7.46	7.66	7.88	7.96	8.23	8.24	8.01	7.61
16	7.54	7.74	8.02	8.17	8.47	8.56	8.38	7.98
20	7.61	7.82	8.17	8.48	8.77	9.11	9.11	8.69

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.3°	3.56	143.4°	3.63
8	41.2°	4.32	148.7°	4.63
10	39.9°	4.86	152°	5.49
12	39°	5.14	156.8°	6.24
14	38.4°	5.28	166.4°	6.87
16	38.2°	5.36	177.2°	7.41
20	38.1°	5.42	179°	8.13

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