ALMA GEMEA — ORC Rating

GPH

622

OSN

602.1

LOA

11.9 m

Displacement

7221 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7155

Medium

0.9931

High

1.167

Triple Offshore

Low

0.928

Medium

1.2336

High

1.4022

Boat Specifications

Dimensions

Length overall: 11.9 m
Beam: 3.98 m
Draft: 2 m
Displacement: 7221 kg
Crew weight: 640 kg
Wetted surface: 31.21 m²

Sails

Mainsail: 36.57 m²
Genoa: 39.56 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 110.32 m²

Design

Type: Dufour 405 GL
Builder: Dufour Yachts
Designer: Felci
Year built: 2008

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.

6,43.7,4.495363,52,5.01,60,5.31,75,5.57,90,5.62,110,5.73,120,5.57,135,5.03,145,4.480243,150,4.23
8,42.2,5.345539,52,6,60,6.32,75,6.59,90,6.83,110,6.96,120,6.78,135,6.2,149.3,5.384646,150,5.35
10,41.8,6.076654,52,6.79,60,7.07,75,7.28,90,7.52,110,7.64,120,7.54,135,7.15,150,6.33,150.3,6.320286
12,40.8,6.591853,52,7.27,60,7.47,75,7.64,90,7.86,110,8.04,120,7.97,135,7.69,150,7.15,154.7,6.924146
14,39.7,6.810506,52,7.5,60,7.7,75,7.89,90,8,110,8.42,120,8.38,135,8.08,150,7.67,166.3,7.081474
16,39.2,6.865008,52,7.6,60,7.82,75,8.09,90,8.2,110,8.76,120,8.82,135,8.5,150,8.03,180,7.44
20,40.3,6.975509,52,7.63,60,7.88,75,8.33,90,8.7,110,9.17,120,9.61,135,9.42,150,8.82,180,8.17

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.01	5.31	5.57	5.62	5.73	5.57	5.03	4.23
8	6	6.32	6.59	6.83	6.96	6.78	6.2	5.35
10	6.79	7.07	7.28	7.52	7.64	7.54	7.15	6.33
12	7.27	7.47	7.64	7.86	8.04	7.97	7.69	7.15
14	7.5	7.7	7.89	8	8.42	8.38	8.08	7.67
16	7.6	7.82	8.09	8.2	8.76	8.82	8.5	8.03
20	7.63	7.88	8.33	8.7	9.17	9.61	9.42	8.82

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.7°	3.25	145°	3.67
8	42.2°	3.96	149.3°	4.63
10	41.8°	4.53	150.3°	5.49
12	40.8°	4.99	154.7°	6.26
14	39.7°	5.24	166.3°	6.88
16	39.2°	5.32	180°	7.44
20	40.3°	5.32	180°	8.17

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