DEFENDER — ORC Rating

GPH

564.1

OSN

546.4

LOA

14.506 m

Displacement

11902 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7034

Medium

0.9743

High

1.1432

Triple Offshore

Low

0.9121

Medium

1.2087

High

1.3694

Boat Specifications

Dimensions

Length overall: 14.506 m
Beam: 4.51 m
Draft: 2.8 m
Displacement: 11902 kg
Crew weight: 1010 kg
Wetted surface: 43.89 m²

Sails

Mainsail: 66.49 m²
Genoa: 53.28 m²
Spinnaker: 157.98 m²
Asymmetric spinnaker: 153.6 m²

Design

Type: FIRST 47.7
Builder: BENETEAU
Designer: B.FARR
Year built: 1999
Stability index: 115

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.

6,43.2,5.061946,52,5.66,60,6,75,6.28,90,6.2,110,6.21,120,6.03,135,5.41,141.2,5.055573,150,4.55
8,41.7,6.053802,52,6.78,60,7.12,75,7.4,90,7.47,110,7.56,120,7.37,135,6.72,146.6,5.941202,150,5.73
10,40.6,6.80916,52,7.61,60,7.87,75,8.06,90,8.22,110,8.34,120,8.23,135,7.78,146.6,7.055178,150,6.8
12,39.4,7.247,52,8.04,60,8.25,75,8.43,90,8.57,110,8.79,120,8.71,135,8.4,150,7.74,153.8,7.511772
14,38.4,7.400853,52,8.23,60,8.45,75,8.69,90,8.77,110,9.2,120,9.18,135,8.84,150,8.34,160.4,7.876377
16,38.2,7.507728,52,8.31,60,8.55,75,8.89,90,9.07,110,9.53,120,9.66,135,9.31,150,8.75,173,8.070154
20,37.8,7.656725,52,8.41,60,8.64,75,9.1,90,9.57,110,9.99,120,10.47,135,10.36,150,9.66,178.1,8.864874

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.66	6	6.28	6.2	6.21	6.03	5.41	4.55
8	6.78	7.12	7.4	7.47	7.56	7.37	6.72	5.73
10	7.61	7.87	8.06	8.22	8.34	8.23	7.78	6.8
12	8.04	8.25	8.43	8.57	8.79	8.71	8.4	7.74
14	8.23	8.45	8.69	8.77	9.2	9.18	8.84	8.34
16	8.31	8.55	8.89	9.07	9.53	9.66	9.31	8.75
20	8.41	8.64	9.1	9.57	9.99	10.47	10.36	9.66

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.2°	3.69	141.2°	3.94
8	41.7°	4.52	146.6°	4.96
10	40.6°	5.17	146.6°	5.89
12	39.4°	5.6	153.8°	6.74
14	38.4°	5.8	160.4°	7.42
16	38.2°	5.9	173°	8.01
20	37.8°	6.05	178.1°	8.86

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