Seamaster — ORC Rating

GPH

597

OSN

584.3

LOA

12.4 m

Displacement

9103 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7376

Medium

1.0108

High

1.1915

Triple Offshore

Low

0.9773

Medium

1.2804

High

1.4515

Boat Specifications

Dimensions

Length overall: 12.4 m
Beam: 3.92 m
Draft: 2.17 m
Displacement: 9103 kg
Crew weight: 878 kg
Wetted surface: 38.76 m²

Sails

Mainsail: 52.69 m²
Genoa: 39.04 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 0 m²

Design

Type: Dehler 42
Builder: Dehler Segelyachte
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.

6,44.6,5.140261,52,5.7,60,6.12,75,6.53,90,6.56,110,5.82,120,5.53,135,4.78,141.4,4.401676,150,3.97
8,43.1,6.108231,52,6.85,60,7.27,75,7.6,90,7.59,110,6.99,120,6.81,135,5.97,144,5.401617,150,5.05
10,42,6.74162,52,7.52,60,7.83,75,8.08,90,8.08,110,7.88,120,7.68,135,6.97,150,5.98,150.1,5.975337
12,41.1,7.01998,52,7.77,60,8.04,75,8.33,90,8.4,110,8.34,120,8.14,135,7.72,150,6.86,154.3,6.603209
14,39.8,7.119767,52,7.9,60,8.15,75,8.48,90,8.69,110,8.74,120,8.52,135,8.15,150,7.57,157.5,7.197908
16,39.4,7.195235,52,7.97,60,8.22,75,8.58,90,8.96,110,9.18,120,8.96,135,8.5,150,8.03,175.4,7.293493
20,39.2,7.265037,52,8.02,60,8.28,75,8.75,90,9.27,110,10.02,120,9.98,135,9.34,150,8.74,179,8.171245

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.7	6.12	6.53	6.56	5.82	5.53	4.78	3.97
8	6.85	7.27	7.6	7.59	6.99	6.81	5.97	5.05
10	7.52	7.83	8.08	8.08	7.88	7.68	6.97	5.98
12	7.77	8.04	8.33	8.4	8.34	8.14	7.72	6.86
14	7.9	8.15	8.48	8.69	8.74	8.52	8.15	7.57
16	7.97	8.22	8.58	8.96	9.18	8.96	8.5	8.03
20	8.02	8.28	8.75	9.27	10.02	9.98	9.34	8.74

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.6°	3.66	141.4°	3.44
8	43.1°	4.46	144°	4.37
10	42°	5.01	150.1°	5.18
12	41.1°	5.29	154.3°	5.95
14	39.8°	5.47	157.5°	6.65
16	39.4°	5.56	175.4°	7.27
20	39.2°	5.63	179°	8.17

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