IRENE — ORC Rating | RegattaPages

GPH

710.3

OSN

690.2

LOA

9.43 m

Displacement

3600 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5677

Medium

0.7744

High

0.8806

Triple Offshore

Low

0.7349

Medium

0.9561

High

1.0607

Boat Specifications

Dimensions

Length overall: 9.43 m
Beam: 3.1 m
Draft: 1.49 m
Displacement: 3600 kg
Crew weight: 250 kg
Wetted surface: 19.85 m²

Sails

Mainsail: 26.23 m²
Genoa: 25.48 m²
Spinnaker: 49.62 m²
Asymmetric spinnaker: 0 m²

Design

Type: Dehler 31
Builder: Dehler Yachts
Designer: E. G. Van de Stadt
Year built: 1985

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.

6,44.2,4.142776,52,4.59,60,4.87,75,5.12,90,5.07,110,5,120,4.84,135,4.36,148,3.785163,150,3.71
8,42,4.803909,52,5.42,60,5.73,75,5.98,90,5.96,110,6.02,120,5.87,135,5.33,150,4.69,152,4.60956
10,42,5.4229,52,6.04,60,6.26,75,6.42,90,6.5,110,6.56,120,6.48,135,6.15,150,5.53,154,5.351615
12,41.2,5.754804,52,6.33,60,6.51,75,6.68,90,6.79,110,6.9,120,6.82,135,6.59,150,6.22,162,5.793557
14,40.9,5.860924,52,6.44,60,6.64,75,6.86,90,6.94,110,7.23,120,7.15,135,6.92,150,6.61,180,6.13
16,40.9,5.874154,52,6.47,60,6.69,75,7,90,7.15,110,7.55,120,7.51,135,7.26,150,6.92,180,6.54
20,42.6,5.855206,52,6.44,60,6.68,75,7.09,90,7.49,110,7.89,120,8.17,135,7.98,150,7.58,180,7.14

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.59	4.87	5.12	5.07	5	4.84	4.36	3.71
8	5.42	5.73	5.98	5.96	6.02	5.87	5.33	4.69
10	6.04	6.26	6.42	6.5	6.56	6.48	6.15	5.53
12	6.33	6.51	6.68	6.79	6.9	6.82	6.59	6.22
14	6.44	6.64	6.86	6.94	7.23	7.15	6.92	6.61
16	6.47	6.69	7	7.15	7.55	7.51	7.26	6.92
20	6.44	6.68	7.09	7.49	7.89	8.17	7.98	7.58

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	2.97	148°	3.21
8	42°	3.57	152°	4.07
10	42°	4.03	154°	4.81
12	41.2°	4.33	162°	5.51
14	40.9°	4.43	180°	6.13
16	40.9°	4.44	180°	6.54
20	42.6°	4.31	180°	7.14

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