TRUE BLUE — ORC Rating

GPH

677.1

OSN

659.1

LOA

9.38 m

Displacement

2582 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6043

Medium

0.8158

High

0.9286

Triple Offshore

Low

0.7798

Medium

0.9976

High

1.1122

Boat Specifications

Dimensions

Length overall: 9.38 m
Beam: 3.24 m
Draft: 1.72 m
Displacement: 2582 kg
Crew weight: 475 kg
Wetted surface: 16.98 m²

Sails

Mainsail: 29.91 m²
Genoa: 16.09 m²
Spinnaker: 49.61 m²
Asymmetric spinnaker: 0 m²

Design

Type: FINNFLYER 31 LF
Builder: POLAR YACHT
Designer: EIVIND STILL
Year built: 1986

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.

6,42,4.319481,52,4.87,60,5.14,75,5.34,90,5.38,110,5.34,120,5.14,135,4.61,146.5,4.041321,150,3.89
8,41.6,5.148449,52,5.77,60,6.01,75,6.17,90,6.29,110,6.31,120,6.16,135,5.66,150,4.9,151,4.847821
10,39.8,5.661972,52,6.24,60,6.4,75,6.54,90,6.71,110,6.78,120,6.68,135,6.37,150,5.78,153,5.645301
12,38.6,5.847576,52,6.45,60,6.62,75,6.81,90,6.99,110,7.21,120,7.11,135,6.79,150,6.41,164,5.960916
14,38.4,5.933442,52,6.54,60,6.75,75,7.04,90,7.17,110,7.59,120,7.55,135,7.22,150,6.8,180,6.32
16,38.6,5.975531,52,6.58,60,6.81,75,7.2,90,7.44,110,7.89,120,7.97,135,7.65,150,7.2,180,6.71
20,38.6,6.039509,52,6.67,60,6.9,75,7.32,90,7.79,110,8.27,120,8.73,135,8.66,150,8.03,180,7.48

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.87	5.14	5.34	5.38	5.34	5.14	4.61	3.89
8	5.77	6.01	6.17	6.29	6.31	6.16	5.66	4.9
10	6.24	6.4	6.54	6.71	6.78	6.68	6.37	5.78
12	6.45	6.62	6.81	6.99	7.21	7.11	6.79	6.41
14	6.54	6.75	7.04	7.17	7.59	7.55	7.22	6.8
16	6.58	6.81	7.2	7.44	7.89	7.97	7.65	7.2
20	6.67	6.9	7.32	7.79	8.27	8.73	8.66	8.03

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.21	146.5°	3.37
8	41.6°	3.85	151°	4.24
10	39.8°	4.35	153°	5.03
12	38.6°	4.57	164°	5.73
14	38.4°	4.65	180°	6.32
16	38.6°	4.67	180°	6.71
20	38.6°	4.72	180°	7.48

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