DOBBE — ORC Rating | RegattaPages

GPH

822.9

OSN

798

LOA

8.07 m

Displacement

3687 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5518

Medium

0.7476

High

0.8568

Triple Offshore

Low

0.7077

Medium

0.9314

High

1.0364

Boat Specifications

Dimensions

Length overall: 8.07 m
Beam: 2.34 m
Draft: 1.33 m
Displacement: 3687 kg
Crew weight: 376 kg
Wetted surface: 18.28 m²

Sails

Mainsail: 16.61 m²
Genoa: 23.95 m²
Spinnaker: 47.75 m²
Asymmetric spinnaker: 0 m²

Design

Type: Halcyon II 27'std
Builder: Offshor Y.
Designer: A. Buchanan
Year built: 1972

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.

6,43.8,3.463754,52,3.84,60,4.05,75,4.23,90,4.19,110,4.29,120,4.17,135,3.79,148.8,3.331914,150,3.29
8,42.2,4.06315,52,4.53,60,4.77,75,4.99,90,5.08,110,5.22,120,5.1,135,4.68,150,4.15,153.4,4.037335
10,42.1,4.541927,52,5.11,60,5.38,75,5.58,90,5.71,110,5.83,120,5.76,135,5.49,150,4.92,154.4,4.745892
12,43.5,4.935383,52,5.46,60,5.69,75,5.87,90,5.96,110,6.13,120,6.09,135,5.92,150,5.58,169.4,5.005416
14,43.6,5.095476,52,5.59,60,5.82,75,6.04,90,6.11,110,6.37,120,6.34,135,6.18,150,5.94,180,5.5
16,43.6,5.150711,52,5.65,60,5.88,75,6.14,90,6.27,110,6.51,120,6.61,135,6.44,150,6.18,180,5.88
20,44.7,5.219475,52,5.67,60,5.92,75,6.21,90,6.5,110,6.72,120,6.95,135,6.96,150,6.67,180,6.35

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	3.84	4.05	4.23	4.19	4.29	4.17	3.79	3.29
8	4.53	4.77	4.99	5.08	5.22	5.1	4.68	4.15
10	5.11	5.38	5.58	5.71	5.83	5.76	5.49	4.92
12	5.46	5.69	5.87	5.96	6.13	6.09	5.92	5.58
14	5.59	5.82	6.04	6.11	6.37	6.34	6.18	5.94
16	5.65	5.88	6.14	6.27	6.51	6.61	6.44	6.18
20	5.67	5.92	6.21	6.5	6.72	6.95	6.96	6.67

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	2.5	148.8°	2.85
8	42.2°	3.01	153.4°	3.61
10	42.1°	3.37	154.4°	4.28
12	43.5°	3.58	169.4°	4.92
14	43.6°	3.69	180°	5.5
16	43.6°	3.73	180°	5.88
20	44.7°	3.71	180°	6.35

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