Darwin — ORC Rating | RegattaPages

GPH

678.5

OSN

658.2

LOA

10.112 m

Displacement

4193 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6024

Medium

0.8178

High

0.9358

Triple Offshore

Low

0.7761

Medium

0.9978

High

1.1072

Boat Specifications

Dimensions

Length overall: 10.112 m
Beam: 3.41 m
Draft: 1.74 m
Displacement: 4193 kg
Crew weight: 516 kg
Wetted surface: 22.51 m²

Sails

Mainsail: 29.41 m²
Genoa: 27.46 m²
Spinnaker: 53.25 m²
Asymmetric spinnaker: 60.72 m²

Design

Type: Optima 106
Builder: Dehler
Designer: vd Stadt
Year built: 1981
Stability index: 108.3

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.

6,43.8,4.433605,52,4.9,60,5.17,75,5.33,90,5.26,110,5.27,120,5.09,135,4.57,144.2,4.105719,150,3.85
8,42,5.221055,52,5.78,60,6.01,75,6.15,90,6.21,110,6.27,120,6.12,135,5.63,148.7,4.962205,150,4.89
10,40,5.678522,52,6.27,60,6.44,75,6.57,90,6.69,110,6.77,120,6.69,135,6.37,150,5.77,153.2,5.612906
12,38.7,5.932624,52,6.53,60,6.67,75,6.81,90,6.97,110,7.1,120,7.04,135,6.8,150,6.4,161,6.007285
14,38.1,6.036077,52,6.66,60,6.82,75,7,90,7.15,110,7.39,120,7.35,135,7.12,150,6.79,175.4,6.280229
16,37.8,6.087413,52,6.72,60,6.9,75,7.14,90,7.26,110,7.66,120,7.67,135,7.44,150,7.1,179,6.671016
20,38.2,6.133432,52,6.77,60,6.97,75,7.3,90,7.57,110,8.17,120,8.43,135,8.2,150,7.72,179,7.271107

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.9	5.17	5.33	5.26	5.27	5.09	4.57	3.85
8	5.78	6.01	6.15	6.21	6.27	6.12	5.63	4.89
10	6.27	6.44	6.57	6.69	6.77	6.69	6.37	5.77
12	6.53	6.67	6.81	6.97	7.1	7.04	6.8	6.4
14	6.66	6.82	7	7.15	7.39	7.35	7.12	6.79
16	6.72	6.9	7.14	7.26	7.66	7.67	7.44	7.1
20	6.77	6.97	7.3	7.57	8.17	8.43	8.2	7.72

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.8°	3.2	144.2°	3.33
8	42°	3.88	148.7°	4.24
10	40°	4.35	153.2°	5.01
12	38.7°	4.63	161°	5.68
14	38.1°	4.75	175.4°	6.26
16	37.8°	4.81	179°	6.67
20	38.2°	4.82	179°	7.27

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