Jonna — ORC Rating | RegattaPages

GPH

605.2

OSN

589.5

LOA

11.86 m

Displacement

8183 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7574

Medium

1.0203

High

1.177

Triple Offshore

Low

0.9789

Medium

1.2566

High

1.3998

Boat Specifications

Dimensions

Length overall: 11.86 m
Beam: 3.84 m
Draft: 2.06 m
Displacement: 8183 kg
Crew weight: 760 kg
Wetted surface: 31.92 m²

Sails

Mainsail: 49.11 m²
Genoa: 49.66 m²
Spinnaker: 100.28 m²
Asymmetric spinnaker: 0 m²

Design

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

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.

6,42.7,4.966563,52,5.55,60,5.87,75,6.15,90,6.1,110,5.74,120,5.58,135,5.05,144.6,4.526898,150,4.26
8,41.3,5.803551,52,6.55,60,6.85,75,7.07,90,7.06,110,6.93,120,6.77,135,6.17,149.7,5.362548,150,5.35
10,41,6.479314,52,7.16,60,7.36,75,7.51,90,7.54,110,7.57,120,7.48,135,7.1,150,6.3,151.3,6.224732
12,39.9,6.752132,52,7.42,60,7.6,75,7.77,90,7.82,110,7.94,120,7.88,135,7.62,150,7.12,155.7,6.824641
14,39,6.845561,52,7.53,60,7.71,75,7.95,90,8.06,110,8.27,120,8.23,135,7.97,150,7.6,171.8,6.940963
16,38.5,6.887227,52,7.58,60,7.78,75,8.08,90,8.29,110,8.54,120,8.61,135,8.33,150,7.93,180,7.42
20,38.1,6.912896,52,7.61,60,7.83,75,8.2,90,8.64,110,8.9,120,9.26,135,9.15,150,8.64,180,8.1

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.55	5.87	6.15	6.1	5.74	5.58	5.05	4.26
8	6.55	6.85	7.07	7.06	6.93	6.77	6.17	5.35
10	7.16	7.36	7.51	7.54	7.57	7.48	7.1	6.3
12	7.42	7.6	7.77	7.82	7.94	7.88	7.62	7.12
14	7.53	7.71	7.95	8.06	8.27	8.23	7.97	7.6
16	7.58	7.78	8.08	8.29	8.54	8.61	8.33	7.93
20	7.61	7.83	8.2	8.64	8.9	9.26	9.15	8.64

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.7°	3.65	144.6°	3.69
8	41.3°	4.36	149.7°	4.63
10	41°	4.89	151.3°	5.46
12	39.9°	5.18	155.7°	6.22
14	39°	5.32	171.8°	6.87
16	38.5°	5.39	180°	7.42
20	38.1°	5.44	180°	8.1

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