TWINS TWICE — ORC Rating

GPH

565.1

OSN

549.2

LOA

12.367 m

Displacement

8225 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7167

Medium

0.9722

High

1.1176

Triple Offshore

Low

0.9266

Medium

1.1988

High

1.3445

Boat Specifications

Dimensions

Length overall: 12.367 m
Beam: 3.92 m
Draft: 2.39 m
Displacement: 8225 kg
Crew weight: 790 kg
Wetted surface: 36.8 m²

Sails

Mainsail: 59.62 m²
Genoa: 46.45 m²
Spinnaker: 143.68 m²
Asymmetric spinnaker: 0 m²

Design

Type: Dehler 42
Builder: Dehler Yachts
Designer: Judel/Vrolijk
Year built: 2016

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.

6,43.5,5.155958,52,5.75,60,6.11,75,6.41,90,6.37,110,6.26,120,6.11,135,5.53,143,5.071149,150,4.68
8,41.6,6.097903,52,6.86,60,7.2,75,7.45,90,7.43,110,7.54,120,7.41,135,6.83,147,6.057206,150,5.87
10,40.9,6.85318,52,7.59,60,7.82,75,7.98,90,7.99,110,8.2,120,8.12,135,7.78,150,6.928203
12,39.4,7.091707,52,7.87,60,8.09,75,8.31,90,8.34,110,8.64,120,8.62,135,8.3,150,7.75,155,7.480902
14,38.8,7.198417,52,7.98,60,8.21,75,8.54,90,8.68,110,8.94,120,9.17,135,8.8,150,8.25,166,7.636847
16,38.6,7.255088,52,8.04,60,8.27,75,8.68,90,9.02,110,9.23,120,9.62,135,9.38,150,8.7,180,7.98
20,38.8,7.442214,52,8.17,60,8.39,75,8.81,90,9.45,110,9.76,120,10.29,135,10.83,150,9.81,180,8.87

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.75	6.11	6.41	6.37	6.26	6.11	5.53	4.68
8	6.86	7.2	7.45	7.43	7.54	7.41	6.83	5.87
10	7.59	7.82	7.98	7.99	8.2	8.12	7.78	6.93
12	7.87	8.09	8.31	8.34	8.64	8.62	8.3	7.75
14	7.98	8.21	8.54	8.68	8.94	9.17	8.8	8.25
16	8.04	8.27	8.68	9.02	9.23	9.62	9.38	8.7
20	8.17	8.39	8.81	9.45	9.76	10.29	10.83	9.81

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.74	143°	4.05
8	41.6°	4.56	147°	5.08
10	40.9°	5.18	150°	6
12	39.4°	5.48	155°	6.78
14	38.8°	5.61	166°	7.41
16	38.6°	5.67	180°	7.98
20	38.8°	5.8	180°	8.87

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