Jalla!Jalla! — ORC Rating

GPH

613.5

OSN

594.9

LOA

10.57 m

Displacement

4287 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6615

Medium

0.8958

High

1.0174

Triple Offshore

Low

0.8555

Medium

1.1038

High

1.2359

Boat Specifications

Dimensions

Length overall: 10.57 m
Beam: 3.34 m
Draft: 2.03 m
Displacement: 4287 kg
Crew weight: 420 kg
Wetted surface: 24.69 m²

Sails

Mainsail: 33.83 m²
Genoa: 24.33 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 102.87 m²

Design

Type: J-105
Builder: J-boats France
Designer: Johnstone
Year built: 1992
Stability index: 118.5

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.

6,42.9,4.627715,52,5.15,60,5.42,75,5.91,90,6.1,110,5.87,120,5.73,135,5.15,143.9,4.678276,150,4.37
8,40.9,5.516942,52,6.16,60,6.41,75,6.85,90,7.02,110,6.97,120,6.87,135,6.39,147.8,5.660646,150,5.54
10,39,6.09924,52,6.79,60,6.97,75,7.27,90,7.49,110,7.53,120,7.49,135,7.19,148.7,6.588966,150,6.5
12,37.6,6.424418,52,7.12,60,7.28,75,7.49,90,7.82,110,7.95,120,7.99,135,7.73,150,7.15,150.1,7.140412
14,36.9,6.565088,52,7.29,60,7.48,75,7.7,90,8.06,110,8.31,120,8.45,135,8.26,149.3,7.594328,150,7.54
16,36.9,6.677632,52,7.38,60,7.6,75,7.91,90,8.23,110,8.71,120,8.9,135,8.81,150,7.9,173,7.022343
20,36.9,6.765167,52,7.48,60,7.73,75,8.16,90,8.52,110,9.47,120,9.66,135,10.35,150,8.7,174.8,7.782028

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.15	5.42	5.91	6.1	5.87	5.73	5.15	4.37
8	6.16	6.41	6.85	7.02	6.97	6.87	6.39	5.54
10	6.79	6.97	7.27	7.49	7.53	7.49	7.19	6.5
12	7.12	7.28	7.49	7.82	7.95	7.99	7.73	7.15
14	7.29	7.48	7.7	8.06	8.31	8.45	8.26	7.54
16	7.38	7.6	7.91	8.23	8.71	8.9	8.81	7.9
20	7.48	7.73	8.16	8.52	9.47	9.66	10.35	8.7

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.39	143.9°	3.78
8	40.9°	4.17	147.8°	4.79
10	39°	4.74	148.7°	5.63
12	37.6°	5.09	150.1°	6.19
14	36.9°	5.25	149.3°	6.53
16	36.9°	5.34	173°	6.97
20	36.9°	5.41	174.8°	7.75

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