GUDRUN VIII — ORC Rating

GPH

581.1

OSN

564.1

LOA

12.487 m

Displacement

6552 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7029

Medium

0.9407

High

1.0585

Triple Offshore

Low

0.9043

Medium

1.1667

High

1.2947

Boat Specifications

Dimensions

Length overall: 12.487 m
Beam: 3.63 m
Draft: 2.55 m
Displacement: 6552 kg
Crew weight: 500 kg
Wetted surface: 31.95 m²

Sails

Mainsail: 48.81 m²
Genoa: 37.87 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 118.01 m²

Design

Type: NAUTATEC 42
Builder: ESTARELLAS
Designer: nautatec
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.

6,42.6,5.094437,52,5.69,60,5.98,75,6.18,90,6.05,110,6.07,120,5.9,135,5.28,142.8,4.833466,150,4.44
8,40.7,6.054336,52,6.78,60,7.04,75,7.21,90,7.2,110,7.33,120,7.18,135,6.59,146.2,5.89662,150,5.66
10,39.3,6.590508,52,7.38,60,7.62,75,7.79,90,7.8,110,8.04,120,7.95,135,7.55,148.5,6.814129,150,6.71
12,38.6,6.794448,52,7.62,60,7.87,75,8.12,90,8.17,110,8.5,120,8.49,135,8.15,149.6,7.524518,150,7.49
14,38.4,6.915969,52,7.75,60,7.99,75,8.33,90,8.5,110,8.81,120,9,135,8.69,150,7.98,150.1,7.970961
16,38.3,6.995623,52,7.82,60,8.08,75,8.46,90,8.77,110,9.07,120,9.46,135,9.25,150,8.37,171.2,7.427433
20,39.1,7.138748,52,7.9,60,8.17,75,8.64,90,9.13,110,9.54,120,10.13,135,10.64,150,9.18,175.2,8.269001
24,40.1,7.059549,52,7.87,60,8.17,75,8.71,90,9.35,110,9.93,120,10.78,135,12.48,140.6,12.177548,150,10.86

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.69	5.98	6.18	6.05	6.07	5.9	5.28	4.44
8	6.78	7.04	7.21	7.2	7.33	7.18	6.59	5.66
10	7.38	7.62	7.79	7.8	8.04	7.95	7.55	6.71
12	7.62	7.87	8.12	8.17	8.5	8.49	8.15	7.49
14	7.75	7.99	8.33	8.5	8.81	9	8.69	7.98
16	7.82	8.08	8.46	8.77	9.07	9.46	9.25	8.37
20	7.9	8.17	8.64	9.13	9.54	10.13	10.64	9.18
24	7.87	8.17	8.71	9.35	9.93	10.78	12.48	10.86

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.6°	3.75	142.8°	3.85
8	40.7°	4.59	146.2°	4.9
10	39.3°	5.1	148.5°	5.81
12	38.6°	5.31	149.6°	6.49
14	38.4°	5.42	150.1°	6.91
16	38.3°	5.49	171.2°	7.34
20	39.1°	5.54	175.2°	8.24
24	40.1°	5.4	140.6°	9.41

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