Jonna — ORC Rating | RegattaPages

GPH

606.7

OSN

590.4

LOA

11.858 m

Displacement

8158 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7557

Medium

1.019

High

1.1756

Triple Offshore

Low

0.9743

Medium

1.2547

High

1.3984

Boat Specifications

Dimensions

Length overall: 11.858 m
Beam: 3.84 m
Draft: 2.06 m
Displacement: 8158 kg
Crew weight: 760 kg
Wetted surface: 31.92 m²

Sails

Mainsail: 49.07 m²
Genoa: 49.62 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.

6,42.6,4.945,52,5.52,60,5.81,75,6.05,90,6,110,5.7,120,5.54,135,5.03,144.9,4.497954,150,4.25
8,41.3,5.79024,52,6.53,60,6.82,75,7.03,90,7.01,110,6.9,120,6.73,135,6.15,149.9,5.351664,150,5.34
10,41,6.479314,52,7.15,60,7.35,75,7.5,90,7.52,110,7.57,120,7.47,135,7.08,150,6.3,151.5,6.212897
12,40,6.748956,52,7.4,60,7.59,75,7.75,90,7.82,110,7.94,120,7.87,135,7.61,150,7.11,155.7,6.824641
14,39.1,6.842374,52,7.51,60,7.7,75,7.94,90,8.06,110,8.27,120,8.23,135,7.96,150,7.59,171.7,6.94272
16,38.4,6.864929,52,7.56,60,7.76,75,8.06,90,8.29,110,8.54,120,8.61,135,8.33,150,7.93,180,7.42
20,38.1,6.900189,52,7.59,60,7.81,75,8.19,90,8.64,110,8.91,120,9.27,135,9.16,150,8.64,180,8.1

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.52	5.81	6.05	6	5.7	5.54	5.03	4.25
8	6.53	6.82	7.03	7.01	6.9	6.73	6.15	5.34
10	7.15	7.35	7.5	7.52	7.57	7.47	7.08	6.3
12	7.4	7.59	7.75	7.82	7.94	7.87	7.61	7.11
14	7.51	7.7	7.94	8.06	8.27	8.23	7.96	7.59
16	7.56	7.76	8.06	8.29	8.54	8.61	8.33	7.93
20	7.59	7.81	8.19	8.64	8.91	9.27	9.16	8.64

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.64	144.9°	3.68
8	41.3°	4.35	149.9°	4.63
10	41°	4.89	151.5°	5.46
12	40°	5.17	155.7°	6.22
14	39.1°	5.31	171.7°	6.87
16	38.4°	5.38	180°	7.42
20	38.1°	5.43	180°	8.1

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