BIGGER JOHNKA — ORC Rating

GPH

586.9

OSN

571

LOA

9.98 m

Displacement

2552 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6962

Medium

0.926

High

1.062

Triple Offshore

Low

0.899

Medium

1.1492

High

1.3019

Boat Specifications

Dimensions

Length overall: 9.98 m
Beam: 3.01 m
Draft: 2.24 m
Displacement: 2552 kg
Crew weight: 415 kg
Wetted surface: 21.99 m²

Sails

Mainsail: 32.71 m²
Genoa: 24.72 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 109.3 m²

Design

Type: GP 33
Builder: Stocznia Ustka
Designer: Giovanni Ceccarell
Year built: 2009

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.

6,42.8,4.838293,52,5.44,60,5.76,75,6.03,90,6.16,110,6.3,120,6.16,135,5.49,143,4.996021,150,4.61
8,42,5.893871,52,6.59,60,6.85,75,7.01,90,7.12,110,7.38,120,7.3,135,6.86,144.8,6.192292,150,5.84
10,40.1,6.432033,52,7.13,60,7.33,75,7.52,90,7.5,110,7.93,120,8.06,135,7.6,149.8,6.884384,150,6.87
12,39,6.536739,52,7.27,60,7.52,75,7.93,90,8.04,110,8.34,120,8.7,135,8.4,150,7.55,151,7.466102
14,39,6.601077,52,7.33,60,7.6,75,8.15,90,8.6,110,8.76,120,9.19,135,9.41,147.5,8.394678,150,8.18
16,39.4,6.716416,52,7.38,60,7.64,75,8.27,90,8.96,110,9.23,120,9.73,135,10.56,145,9.583081,150,9.07
20,40.1,6.785011,52,7.48,60,7.84,75,8.5,90,9.22,110,10.13,120,10.7,135,12.08,142.8,12.504238,150,11.51

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.44	5.76	6.03	6.16	6.3	6.16	5.49	4.61
8	6.59	6.85	7.01	7.12	7.38	7.3	6.86	5.84
10	7.13	7.33	7.52	7.5	7.93	8.06	7.6	6.87
12	7.27	7.52	7.93	8.04	8.34	8.7	8.4	7.55
14	7.33	7.6	8.15	8.6	8.76	9.19	9.41	8.18
16	7.38	7.64	8.27	8.96	9.23	9.73	10.56	9.07
20	7.48	7.84	8.5	9.22	10.13	10.7	12.08	11.51

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.55	143°	3.99
8	42°	4.38	144.8°	5.06
10	40.1°	4.92	149.8°	5.95
12	39°	5.08	151°	6.53
14	39°	5.13	147.5°	7.08
16	39.4°	5.19	145°	7.85
20	40.1°	5.19	142.8°	9.96

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