Firestorm — ORC Rating

GPH

617.2

OSN

603.5

LOA

10.757 m

Displacement

5254 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6678

Medium

0.8812

High

0.9839

Triple Offshore

Low

0.8662

Medium

1.0906

High

1.1984

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.14 m
Displacement: 5254 kg
Crew weight: 180 kg
Wetted surface: 25.48 m²

Sails

Mainsail: 38.11 m²
Genoa: 30.38 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 106.52 m²

Design

Type: J-109
Builder: J-Boats
Designer: Johnstone
Year built: 2001
Stability index: 125

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.

6,42.9,4.695971,52,5.22,60,5.54,75,6.06,90,6.28,110,6.07,120,5.76,135,5.21,144.8,4.711527,150,4.44
8,41.2,5.542155,52,6.23,60,6.5,75,6.93,90,7.13,110,7.04,120,6.9,135,6.44,147.8,5.707917,150,5.57
10,40.6,6.150634,52,6.81,60,7.01,75,7.22,90,7.49,110,7.51,120,7.46,135,7.21,149.1,6.619546,150,6.55
12,39.4,6.315243,52,7.02,60,7.22,75,7.43,90,7.7,110,7.91,120,7.92,135,7.67,150,7.17,150.7,7.120994
14,39,6.382327,52,7.1,60,7.31,75,7.61,90,7.88,110,8.29,120,8.32,135,8.18,150,7.51,152,7.384357
16,38.8,6.454196,52,7.14,60,7.36,75,7.71,90,8.03,110,8.62,120,8.64,135,8.71,150,7.84,174.8,7.059052
20,39.7,6.615548,52,7.26,60,7.47,75,7.76,90,8.34,110,9.05,120,9.43,135,9.99,150,8.61,175.7,7.771877

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.22	5.54	6.06	6.28	6.07	5.76	5.21	4.44
8	6.23	6.5	6.93	7.13	7.04	6.9	6.44	5.57
10	6.81	7.01	7.22	7.49	7.51	7.46	7.21	6.55
12	7.02	7.22	7.43	7.7	7.91	7.92	7.67	7.17
14	7.1	7.31	7.61	7.88	8.29	8.32	8.18	7.51
16	7.14	7.36	7.71	8.03	8.62	8.64	8.71	7.84
20	7.26	7.47	7.76	8.34	9.05	9.43	9.99	8.61

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.9°	3.44	144.8°	3.85
8	41.2°	4.17	147.8°	4.83
10	40.6°	4.67	149.1°	5.68
12	39.4°	4.88	150.7°	6.21
14	39°	4.96	152°	6.52
16	38.8°	5.03	174.8°	7.03
20	39.7°	5.09	175.7°	7.75

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