ROZA II — ORC Rating | RegattaPages

GPH

666.3

OSN

644.6

LOA

12.01 m

Displacement

8392 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6648

Medium

0.9246

High

1.0979

Triple Offshore

Low

0.8608

Medium

1.1536

High

1.3171

Boat Specifications

Dimensions

Length overall: 12.01 m
Beam: 3.94 m
Draft: 2.2 m
Displacement: 8392 kg
Crew weight: 340 kg
Wetted surface: 32.05 m²

Sails

Mainsail: 35.9 m²
Genoa: 49.48 m²
Spinnaker: 81.36 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 405
Builder: BENETEAU
Designer: BERRET JEAN
Year built: 1987

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.

6,44,4.33731,52,4.82,60,5.11,75,5.35,90,5.3,110,5.09,120,4.93,135,4.45,146.6,3.904903,150,3.77
8,41.9,5.118824,52,5.73,60,6.04,75,6.32,90,6.29,110,6.21,120,6.04,135,5.51,150,4.83,150.2,4.81697
10,41.2,5.741513,52,6.49,60,6.78,75,6.99,90,7.01,110,7.07,120,6.96,135,6.46,150,5.72,153,5.577961
12,41.7,6.294883,52,6.93,60,7.15,75,7.33,90,7.37,110,7.5,120,7.43,135,7.14,150,6.53,153.9,6.336108
14,40.8,6.499382,52,7.14,60,7.34,75,7.54,90,7.61,110,7.81,120,7.76,135,7.53,150,7.15,165.8,6.570768
16,40.1,6.562766,52,7.23,60,7.45,75,7.7,90,7.82,110,8.11,120,8.07,135,7.84,150,7.51,180,6.97
20,40.1,6.601986,52,7.29,60,7.53,75,7.9,90,8.19,110,8.49,120,8.71,135,8.52,150,8.11,180,7.67

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.82	5.11	5.35	5.3	5.09	4.93	4.45	3.77
8	5.73	6.04	6.32	6.29	6.21	6.04	5.51	4.83
10	6.49	6.78	6.99	7.01	7.07	6.96	6.46	5.72
12	6.93	7.15	7.33	7.37	7.5	7.43	7.14	6.53
14	7.14	7.34	7.54	7.61	7.81	7.76	7.53	7.15
16	7.23	7.45	7.7	7.82	8.11	8.07	7.84	7.51
20	7.29	7.53	7.9	8.19	8.49	8.71	8.52	8.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44°	3.12	146.6°	3.26
8	41.9°	3.81	150.2°	4.18
10	41.2°	4.32	153°	4.97
12	41.7°	4.7	153.9°	5.69
14	40.8°	4.92	165.8°	6.37
16	40.1°	5.02	180°	6.97
20	40.1°	5.05	180°	7.67

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