FORCE 9 OF LONDON — ORC Rating

GPH

560.9

OSN

544.6

LOA

19.68 m

Displacement

31801 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7883

Medium

1.0816

High

1.2757

Triple Offshore

Low

1.0239

Medium

1.3697

High

1.564

Boat Specifications

Dimensions

Length overall: 19.68 m
Beam: 4.95 m
Draft: 2.9 m
Displacement: 31801 kg
Crew weight: 1200 kg
Wetted surface: 70.71 m²

Sails

Mainsail: 70.49 m²
Genoa: 121.09 m²
Spinnaker: 0 m²
Asymmetric spinnaker: 261.8 m²

Design

Type: SWAN 65
Builder: NAUTOR
Designer: SPARKMAN&STEPHENS
Year built: 1973

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.

6,44.8,5.186234,52,5.71,60,6.07,75,6.35,90,6.33,110,6.13,120,6,135,5.37,143.6,4.870208,150,4.53
8,42.7,6.082339,52,6.77,60,7.13,75,7.46,90,7.43,110,7.46,120,7.27,135,6.66,148.1,5.854141,150,5.74
10,42.1,6.806152,52,7.66,60,8.08,75,8.39,90,8.4,110,8.57,120,8.41,135,7.78,147.9,6.91754,150,6.77
12,43.3,7.502342,52,8.3,60,8.63,75,8.87,90,8.93,110,9.13,120,9.04,135,8.66,147.8,7.905996,150,7.73
14,42.9,7.84937,52,8.61,60,8.92,75,9.15,90,9.23,110,9.48,120,9.43,135,9.15,149,8.551423,150,8.46
16,42.3,8.00399,52,8.77,60,9.07,75,9.35,90,9.47,110,9.73,120,9.77,135,9.5,150,8.89,151.1,8.818176
20,41.8,8.155863,52,8.92,60,9.22,75,9.6,90,9.87,110,10.04,120,10.38,135,10.22,150,9.46,177.1,8.781246

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.71	6.07	6.35	6.33	6.13	6	5.37	4.53
8	6.77	7.13	7.46	7.43	7.46	7.27	6.66	5.74
10	7.66	8.08	8.39	8.4	8.57	8.41	7.78	6.77
12	8.3	8.63	8.87	8.93	9.13	9.04	8.66	7.73
14	8.61	8.92	9.15	9.23	9.48	9.43	9.15	8.46
16	8.77	9.07	9.35	9.47	9.73	9.77	9.5	8.89
20	8.92	9.22	9.6	9.87	10.04	10.38	10.22	9.46

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	44.8°	3.68	143.6°	3.92
8	42.7°	4.47	148.1°	4.97
10	42.1°	5.05	147.9°	5.86
12	43.3°	5.46	147.8°	6.69
14	42.9°	5.75	149°	7.33
16	42.3°	5.92	151.1°	7.72
20	41.8°	6.08	177.1°	8.77

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