GLAFKI III — ORC Rating

GPH

668.3

OSN

651.8

LOA

9.225 m

Displacement

2427 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6369

Medium

0.8292

High

0.9325

Triple Offshore

Low

0.81

Medium

1.0001

High

1.1018

Boat Specifications

Dimensions

Length overall: 9.225 m
Beam: 3.16 m
Draft: 1.78 m
Displacement: 2427 kg
Crew weight: 480 kg
Wetted surface: 15.92 m²

Sails

Mainsail: 30.18 m²
Genoa: 23.35 m²
Spinnaker: 49.95 m²
Asymmetric spinnaker: 49.37 m²

Design

Type: ONE-OFF
Builder: MIKE PARRY
Designer: ROB HUMPHREYS
Year built: 1981
Stability index: 109.3

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.

6,40.8,4.702805,52,5.3,60,5.51,75,5.62,90,5.5,110,5.37,120,5.18,135,4.65,145.7,4.127838,150,3.93
8,39,5.417258,52,5.99,60,6.13,75,6.22,90,6.21,110,6.2,120,6.06,135,5.63,147.9,5.028792,150,4.92
10,37.2,5.712278,52,6.32,60,6.45,75,6.56,90,6.62,110,6.67,120,6.56,135,6.26,150,5.74,155.9,5.488401
12,36.6,5.841926,52,6.46,60,6.61,75,6.78,90,6.88,110,7.04,120,6.95,135,6.67,150,6.29,167.6,5.795189
14,36.4,5.913824,52,6.54,60,6.7,75,6.94,90,7.06,110,7.37,120,7.33,135,7.03,150,6.68,177.2,6.217423
16,36.4,5.96352,52,6.59,60,6.77,75,7.05,90,7.26,110,7.68,120,7.72,135,7.42,150,7.03,179,6.591004
20,36.9,6.014871,52,6.64,60,6.84,75,7.18,90,7.53,110,8.19,120,8.69,135,8.43,150,7.79,179,7.261106

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.3	5.51	5.62	5.5	5.37	5.18	4.65	3.93
8	5.99	6.13	6.22	6.21	6.2	6.06	5.63	4.92
10	6.32	6.45	6.56	6.62	6.67	6.56	6.26	5.74
12	6.46	6.61	6.78	6.88	7.04	6.95	6.67	6.29
14	6.54	6.7	6.94	7.06	7.37	7.33	7.03	6.68
16	6.59	6.77	7.05	7.26	7.68	7.72	7.42	7.03
20	6.64	6.84	7.18	7.53	8.19	8.69	8.43	7.79

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	40.8°	3.56	145.7°	3.41
8	39°	4.21	147.9°	4.26
10	37.2°	4.55	155.9°	5.01
12	36.6°	4.69	167.6°	5.66
14	36.4°	4.76	177.2°	6.21
16	36.4°	4.8	179°	6.59
20	36.9°	4.81	179°	7.26

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