Twa Famkes — ORC Rating

GPH

599.6

OSN

585.1

LOA

11.785 m

Displacement

7565 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6714

Medium

0.9074

High

1.0473

Triple Offshore

Low

0.8794

Medium

1.1272

High

1.2598

Boat Specifications

Dimensions

Length overall: 11.785 m
Beam: 3.79 m
Draft: 1.96 m
Displacement: 7565 kg
Crew weight: 781 kg
Wetted surface: 32.58 m²

Sails

Mainsail: 49.49 m²
Genoa: 37.01 m²
Spinnaker: 104.5 m²
Asymmetric spinnaker: 0 m²

Design

Type: Dehler 39
Builder: Dehler
Designer: Judel &Vrolijk
Year built: 1998
Stability index: 124.6

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.

6,45.3,5.075387,52,5.56,60,5.99,75,6.45,90,6.53,110,5.88,120,5.67,135,5.12,144.2,4.598898,150,4.3
8,43.8,5.971512,52,6.64,60,7.03,75,7.35,90,7.38,110,7.06,120,6.9,135,6.3,148.8,5.506426,150,5.44
10,42.9,6.538866,52,7.19,60,7.49,75,7.74,90,7.77,110,7.69,120,7.6,135,7.22,150,6.44,151.1,6.373759
12,40.6,6.730137,52,7.42,60,7.68,75,7.98,90,8.07,110,8.09,120,8.02,135,7.73,150,7.25,156.1,6.956492
14,39.9,6.856412,52,7.54,60,7.78,75,8.13,90,8.35,110,8.48,120,8.45,135,8.13,150,7.73,166.4,7.191647
16,39.4,6.88465,52,7.61,60,7.85,75,8.23,90,8.6,110,8.81,120,8.9,135,8.57,150,8.1,177.2,7.528989
20,39.3,7.00403,52,7.68,60,7.93,75,8.37,90,8.89,110,9.56,120,9.67,135,9.58,150,8.96,179,8.261258

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.56	5.99	6.45	6.53	5.88	5.67	5.12	4.3
8	6.64	7.03	7.35	7.38	7.06	6.9	6.3	5.44
10	7.19	7.49	7.74	7.77	7.69	7.6	7.22	6.44
12	7.42	7.68	7.98	8.07	8.09	8.02	7.73	7.25
14	7.54	7.78	8.13	8.35	8.48	8.45	8.13	7.73
16	7.61	7.85	8.23	8.6	8.81	8.9	8.57	8.1
20	7.68	7.93	8.37	8.89	9.56	9.67	9.58	8.96

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	45.3°	3.57	144.2°	3.73
8	43.8°	4.31	148.8°	4.71
10	42.9°	4.79	151.1°	5.58
12	40.6°	5.11	156.1°	6.36
14	39.9°	5.26	166.4°	6.99
16	39.4°	5.32	177.2°	7.52
20	39.3°	5.42	179°	8.26

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