ROZA II — ORC Rating | RegattaPages

GPH

664.5

OSN

642.4

LOA

12.01 m

Displacement

8392 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6673

Medium

0.9285

High

1.104

Triple Offshore

Low

0.8622

Medium

1.1572

High

1.3222

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.

6,43.5,4.342585,52,4.83,60,5.11,75,5.33,90,5.27,110,5.07,120,4.92,135,4.44,146.7,3.90042,150,3.77
8,41.7,5.143053,52,5.77,60,6.07,75,6.33,90,6.27,110,6.21,120,6.03,135,5.5,150,4.83,150.3,4.812167
10,41.2,5.781385,52,6.53,60,6.81,75,7.01,90,7.01,110,7.07,120,6.95,135,6.45,150,5.72,153,5.577961
12,41.6,6.338609,52,6.96,60,7.17,75,7.34,90,7.38,110,7.5,120,7.43,135,7.14,150,6.53,153.9,6.336108
14,40.5,6.522832,52,7.17,60,7.36,75,7.56,90,7.62,110,7.81,120,7.77,135,7.52,150,7.14,166,6.565009
16,39.8,6.599126,52,7.26,60,7.48,75,7.72,90,7.83,110,8.11,120,8.07,135,7.84,150,7.5,180,6.97
20,40.2,6.70336,52,7.33,60,7.56,75,7.93,90,8.21,110,8.48,120,8.71,135,8.52,150,8.11,180,7.67

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.83	5.11	5.33	5.27	5.07	4.92	4.44	3.77
8	5.77	6.07	6.33	6.27	6.21	6.03	5.5	4.83
10	6.53	6.81	7.01	7.01	7.07	6.95	6.45	5.72
12	6.96	7.17	7.34	7.38	7.5	7.43	7.14	6.53
14	7.17	7.36	7.56	7.62	7.81	7.77	7.52	7.14
16	7.26	7.48	7.72	7.83	8.11	8.07	7.84	7.5
20	7.33	7.56	7.93	8.21	8.48	8.71	8.52	8.11

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.5°	3.15	146.7°	3.26
8	41.7°	3.84	150.3°	4.18
10	41.2°	4.35	153°	4.97
12	41.6°	4.74	153.9°	5.69
14	40.5°	4.96	166°	6.37
16	39.8°	5.07	180°	6.97
20	40.2°	5.12	180°	7.67

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