Firestorm — ORC Rating

GPH

622.6

OSN

609.4

LOA

10.757 m

Displacement

5255 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6599

Medium

0.8727

High

0.9799

Triple Offshore

Low

0.8577

Medium

1.0816

High

1.1878

Boat Specifications

Dimensions

Length overall: 10.757 m
Beam: 3.52 m
Draft: 2.14 m
Displacement: 5255 kg
Crew weight: 180 kg
Wetted surface: 26.55 m²

Sails

Mainsail: 37.77 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

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.

6,42.2,4.616602,52,5.18,60,5.5,75,6.01,90,6.23,110,6.04,120,5.74,135,5.16,144.5,4.655359,150,4.38
8,40.5,5.418158,52,6.15,60,6.43,75,6.9,90,7.09,110,7.01,120,6.84,135,6.34,148,5.589306,150,5.47
10,40.5,6.075702,52,6.76,60,6.97,75,7.21,90,7.46,110,7.46,120,7.39,135,7.12,148.5,6.520922,150,6.43
12,39.8,6.338806,52,7.01,60,7.2,75,7.39,90,7.69,110,7.83,120,7.8,135,7.56,150,7.05,150.4,7.027068
14,39,6.382327,52,7.1,60,7.3,75,7.57,90,7.85,110,8.19,120,8.2,135,7.99,150,7.4,174,6.485528
16,39,6.433798,52,7.14,60,7.35,75,7.68,90,7.99,110,8.52,120,8.49,135,8.46,150,7.69,177,7.01962
20,39,6.549606,52,7.24,60,7.43,75,7.77,90,8.26,110,8.94,120,9.22,135,9.5,150,8.43,178,7.694687

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.18	5.5	6.01	6.23	6.04	5.74	5.16	4.38
8	6.15	6.43	6.9	7.09	7.01	6.84	6.34	5.47
10	6.76	6.97	7.21	7.46	7.46	7.39	7.12	6.43
12	7.01	7.2	7.39	7.69	7.83	7.8	7.56	7.05
14	7.1	7.3	7.57	7.85	8.19	8.2	7.99	7.4
16	7.14	7.35	7.68	7.99	8.52	8.49	8.46	7.69
20	7.24	7.43	7.77	8.26	8.94	9.22	9.5	8.43

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.2°	3.42	144.5°	3.79
8	40.5°	4.12	148°	4.74
10	40.5°	4.62	148.5°	5.56
12	39.8°	4.87	150.4°	6.11
14	39°	4.96	174°	6.45
16	39°	5	177°	7.01
20	39°	5.09	178°	7.69

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