YALLA ! — ORC Rating | RegattaPages

GPH

624.3

OSN

604.4

LOA

9.95 m

Displacement

3920 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6551

Medium

0.8837

High

0.9978

Triple Offshore

Low

0.8424

Medium

1.0846

High

1.2078

Boat Specifications

Dimensions

Length overall: 9.95 m
Beam: 3.41 m
Draft: 1.99 m
Displacement: 3920 kg
Crew weight: 560 kg
Wetted surface: 23.74 m²

Sails

Mainsail: 33.84 m²
Genoa: 23.53 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 102.71 m²

Design

Type: J 99
Builder: J COMPOSITES
Designer: JOHNSTONE
Year built: 2019
Stability index: 115.9

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.

6,43.5,4.618305,52,5.11,60,5.38,75,5.53,90,5.78,110,5.87,120,5.72,135,5.12,143.9,4.653524,150,4.34
8,41.2,5.475702,52,6.1,60,6.33,75,6.47,90,6.78,110,6.92,120,6.82,135,6.35,147.8,5.625193,150,5.49
10,39.4,6.056421,52,6.71,60,6.87,75,7,90,7.22,110,7.45,120,7.41,135,7.11,148.7,6.518746,150,6.44
12,37.8,6.353184,52,7.03,60,7.18,75,7.32,90,7.43,110,7.85,120,7.88,135,7.62,150,7.04,150.1,7.036593
14,37.6,6.51277,52,7.19,60,7.37,75,7.58,90,7.63,110,8.15,120,8.33,135,8.11,150,7.41,150.2,7.398312
16,37.5,6.579666,52,7.26,60,7.47,75,7.78,90,7.9,110,8.4,120,8.77,135,8.63,150,7.75,174.5,6.952006
20,37.8,6.618954,52,7.32,60,7.56,75,7.99,90,8.36,110,8.87,120,9.55,135,10.26,150,8.49,175.7,7.681623

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.11	5.38	5.53	5.78	5.87	5.72	5.12	4.34
8	6.1	6.33	6.47	6.78	6.92	6.82	6.35	5.49
10	6.71	6.87	7	7.22	7.45	7.41	7.11	6.44
12	7.03	7.18	7.32	7.43	7.85	7.88	7.62	7.04
14	7.19	7.37	7.58	7.63	8.15	8.33	8.11	7.41
16	7.26	7.47	7.78	7.9	8.4	8.77	8.63	7.75
20	7.32	7.56	7.99	8.36	8.87	9.55	10.26	8.49

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.35	143.9°	3.76
8	41.2°	4.12	147.8°	4.76
10	39.4°	4.68	148.7°	5.57
12	37.8°	5.02	150.1°	6.1
14	37.6°	5.16	150.2°	6.42
16	37.5°	5.22	174.5°	6.92
20	37.8°	5.23	175.7°	7.66

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