Sortebill — ORC Rating

GPH

604.2

OSN

588.1

LOA

12.4 m

Displacement

8888 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6637

Medium

0.8973

High

1.0311

Triple Offshore

Low

0.8634

Medium

1.124

High

1.256

Boat Specifications

Dimensions

Length overall: 12.4 m
Beam: 3.91 m
Draft: 2.15 m
Displacement: 8888 kg
Crew weight: 450 kg
Wetted surface: 39.17 m²

Sails

Mainsail: 52.63 m²
Genoa: 38.11 m²
Spinnaker: 122.19 m²
Asymmetric spinnaker: 123.58 m²

Design

Type: Dehler 41 Q.B.
Builder: Dehler
Designer: Simonis & Vogd
Year built: 2011

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.

6,44.2,4.798367,52,5.35,60,5.73,75,6.07,90,6.03,110,5.91,120,5.75,135,5.14,144,4.622894,150,4.32
8,42.4,5.714631,52,6.38,60,6.74,75,7.07,90,7.01,110,7.12,120,6.93,135,6.36,148,5.612889,150,5.49
10,41.6,6.311864,52,7.1,60,7.44,75,7.71,90,7.73,110,7.89,120,7.76,135,7.32,150,6.48,152,6.353718
12,41.2,6.592108,52,7.39,60,7.73,75,8.03,90,8.07,110,8.32,120,8.26,135,7.94,150,7.31,154,7.0984
14,40.9,6.720879,52,7.52,60,7.84,75,8.19,90,8.35,110,8.61,120,8.69,135,8.38,150,7.91,162,7.402294
16,41.2,6.791466,52,7.58,60,7.91,75,8.28,90,8.56,110,8.84,120,9.15,135,8.85,150,8.33,180,7.66
20,41.6,6.953749,52,7.7,60,7.98,75,8.35,90,8.87,110,9.26,120,9.74,135,9.97,150,9.24,180,8.5

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.35	5.73	6.07	6.03	5.91	5.75	5.14	4.32
8	6.38	6.74	7.07	7.01	7.12	6.93	6.36	5.49
10	7.1	7.44	7.71	7.73	7.89	7.76	7.32	6.48
12	7.39	7.73	8.03	8.07	8.32	8.26	7.94	7.31
14	7.52	7.84	8.19	8.35	8.61	8.69	8.38	7.91
16	7.58	7.91	8.28	8.56	8.84	9.15	8.85	8.33
20	7.7	7.98	8.35	8.87	9.26	9.74	9.97	9.24

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.44	144°	3.74
8	42.4°	4.22	148°	4.76
10	41.6°	4.72	152°	5.61
12	41.2°	4.96	154°	6.38
14	40.9°	5.08	162°	7.04
16	41.2°	5.11	180°	7.66
20	41.6°	5.2	180°	8.5

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