Tuulipursi — ORC Rating

GPH

768.6

OSN

746.9

LOA

8.102 m

Displacement

2400 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5332

Medium

0.7176

High

0.8198

Triple Offshore

Low

0.6846

Medium

0.8797

High

0.9799

Boat Specifications

Dimensions

Length overall: 8.102 m
Beam: 2.81 m
Draft: 1.37 m
Displacement: 2400 kg
Crew weight: 367 kg
Wetted surface: 14.85 m²

Sails

Mainsail: 16.55 m²
Genoa: 19.37 m²
Spinnaker: 42.44 m²
Asymmetric spinnaker: 0 m²

Design

Type: Finn 26
Builder: Marin form
Designer: Eivind still
Year built: 1983

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.

6,43.5,3.749788,52,4.18,60,4.44,75,4.63,90,4.6,110,4.68,120,4.56,135,4.19,149,3.663229,150,3.63
8,42,4.332937,52,4.93,60,5.23,75,5.42,90,5.5,110,5.6,120,5.49,135,5.1,150,4.52,153,4.399519
10,43.1,4.957802,52,5.46,60,5.66,75,5.81,90,5.95,110,6.04,120,5.98,135,5.76,150,5.28,154,5.129095
12,41.6,5.268802,52,5.73,60,5.89,75,6.03,90,6.21,110,6.35,120,6.3,135,6.1,150,5.82,172,5.291496
14,40.9,5.397872,52,5.88,60,6.04,75,6.22,90,6.35,110,6.65,120,6.62,135,6.41,150,6.13,180,5.75
16,40.9,5.450792,52,5.94,60,6.13,75,6.38,90,6.5,110,6.92,120,6.93,135,6.73,150,6.41,180,6.07
20,42.4,5.484421,52,5.94,60,6.16,75,6.56,90,6.85,110,7.19,120,7.42,135,7.34,150,7.01,180,6.62

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.18	4.44	4.63	4.6	4.68	4.56	4.19	3.63
8	4.93	5.23	5.42	5.5	5.6	5.49	5.1	4.52
10	5.46	5.66	5.81	5.95	6.04	5.98	5.76	5.28
12	5.73	5.89	6.03	6.21	6.35	6.3	6.1	5.82
14	5.88	6.04	6.22	6.35	6.65	6.62	6.41	6.13
16	5.94	6.13	6.38	6.5	6.92	6.93	6.73	6.41
20	5.94	6.16	6.56	6.85	7.19	7.42	7.34	7.01

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	2.72	149°	3.14
8	42°	3.22	153°	3.92
10	43.1°	3.62	154°	4.61
12	41.6°	3.94	172°	5.24
14	40.9°	4.08	180°	5.75
16	40.9°	4.12	180°	6.07
20	42.4°	4.05	180°	6.62

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