Hieprukka — ORC Rating

GPH

731.1

OSN

712.9

LOA

10.5 m

Displacement

3700 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.576

Medium

0.7478

High

0.84

Triple Offshore

Low

0.735

Medium

0.919

High

1.0026

Boat Specifications

Dimensions

Length overall: 10.5 m
Beam: 2.3 m
Draft: 1.58 m
Displacement: 3700 kg
Crew weight: 260 kg
Wetted surface: 18.47 m²

Sails

Mainsail: 23 m²
Genoa: 29.21 m²
Spinnaker: 53.32 m²
Asymmetric spinnaker: 0 m²

Design

Type: Botnia 6
Builder: Sarin
Designer: G.L.Stenback
Year built: 1970
Stability index: 153.3

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.

6,42,4.225287,52,4.7,60,4.91,75,5.05,90,4.98,110,4.84,120,4.71,135,4.29,146.9,3.772149,150,3.65
8,40.5,4.826369,52,5.4,60,5.61,75,5.76,90,5.75,110,5.76,120,5.69,135,5.26,150,4.63,151.4,4.578676
10,40.5,5.14199,52,5.75,60,5.97,75,6.15,90,6.2,110,6.3,120,6.28,135,6.02,150,5.47,153.8,5.305049
12,40.2,5.28937,52,5.92,60,6.13,75,6.36,90,6.47,110,6.6,120,6.63,135,6.47,150,6.11,161,5.732304
14,40.5,5.391857,52,6,60,6.23,75,6.48,90,6.65,110,6.78,120,6.9,135,6.8,150,6.51,173.6,5.997376
16,40.5,5.44446,52,6.06,60,6.28,75,6.56,90,6.78,110,6.91,120,7.11,135,7.09,150,6.81,178.4,6.372485
20,41.4,5.505851,52,6.1,60,6.34,75,6.65,90,6.93,110,7.08,120,7.35,135,7.62,150,7.39,179,6.96106

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.7	4.91	5.05	4.98	4.84	4.71	4.29	3.65
8	5.4	5.61	5.76	5.75	5.76	5.69	5.26	4.63
10	5.75	5.97	6.15	6.2	6.3	6.28	6.02	5.47
12	5.92	6.13	6.36	6.47	6.6	6.63	6.47	6.11
14	6	6.23	6.48	6.65	6.78	6.9	6.8	6.51
16	6.06	6.28	6.56	6.78	6.91	7.11	7.09	6.81
20	6.1	6.34	6.65	6.93	7.08	7.35	7.62	7.39

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.14	146.9°	3.16
8	40.5°	3.67	151.4°	4.02
10	40.5°	3.91	153.8°	4.76
12	40.2°	4.04	161°	5.42
14	40.5°	4.1	173.6°	5.96
16	40.5°	4.14	178.4°	6.37
20	41.4°	4.13	179°	6.96

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