RODAMON DOS — ORC Rating

GPH

656.5

OSN

637.1

LOA

12.1 m

Displacement

8563 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6119

Medium

0.832

High

0.9701

Triple Offshore

Low

0.7891

Medium

1.0353

High

1.1659

Boat Specifications

Dimensions

Length overall: 12.1 m
Beam: 3.92 m
Draft: 1.72 m
Displacement: 8563 kg
Crew weight: 175 kg
Wetted surface: 32.08 m²

Sails

Mainsail: 37.22 m²
Genoa: 40.19 m²
Spinnaker: 96.96 m²
Asymmetric spinnaker: 0 m²

Design

Type: FIRST 405 SK
Builder: BENETEAU
Designer: BERRET
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.

6,44.2,4.421751,52,4.89,60,5.18,75,5.41,90,5.36,110,5.35,120,5.21,135,4.75,146,4.209701,150,4.04
8,42,5.140317,52,5.76,60,6.07,75,6.34,90,6.31,110,6.5,120,6.33,135,5.82,150,5.092229
10,41.8,5.754712,52,6.48,60,6.77,75,6.98,90,7.06,110,7.21,120,7.13,135,6.75,150,6,152,5.889364
12,42.8,6.310224,52,6.89,60,7.12,75,7.3,90,7.38,110,7.58,120,7.54,135,7.3,150,6.78,154.5,6.581096
14,42,6.472493,52,7.09,60,7.31,75,7.51,90,7.58,110,7.88,120,7.86,135,7.64,150,7.29,171,6.662021
16,41.6,6.552571,52,7.18,60,7.41,75,7.67,90,7.78,110,8.11,120,8.18,135,7.97,150,7.62,180,7.13
20,41.6,6.565943,52,7.22,60,7.48,75,7.88,90,8.15,110,8.41,120,8.72,135,8.67,150,8.25,180,7.78

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.89	5.18	5.41	5.36	5.35	5.21	4.75	4.04
8	5.76	6.07	6.34	6.31	6.5	6.33	5.82	5.1
10	6.48	6.77	6.98	7.06	7.21	7.13	6.75	6
12	6.89	7.12	7.3	7.38	7.58	7.54	7.3	6.78
14	7.09	7.31	7.51	7.58	7.88	7.86	7.64	7.29
16	7.18	7.41	7.67	7.78	8.11	8.18	7.97	7.62
20	7.22	7.48	7.88	8.15	8.41	8.72	8.67	8.25

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.2°	3.17	146°	3.49
8	42°	3.82	150°	4.41
10	41.8°	4.29	152°	5.2
12	42.8°	4.63	154.5°	5.94
14	42°	4.81	171°	6.58
16	41.6°	4.9	180°	7.13
20	41.6°	4.91	180°	7.78

Loading polar chart…