PROSPECT OF WHITBY — ORC Rating

GPH

627.7

OSN

610.5

LOA

13.41 m

Displacement

12223 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6482

Medium

0.8707

High

1.0133

Triple Offshore

Low

0.8328

Medium

1.0788

High

1.2098

Boat Specifications

Dimensions

Length overall: 13.41 m
Beam: 3.95 m
Draft: 2.21 m
Displacement: 12223 kg
Crew weight: 640 kg
Wetted surface: 37.76 m²

Sails

Mainsail: 40.92 m²
Genoa: 69.25 m²
Spinnaker: 144.29 m²
Asymmetric spinnaker: 0 m²

Design

Type: S & S 44
Builder: HUISMAN
Designer: S & S
Year built: 1971

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.

6,42.8,4.715632,52,5.24,60,5.51,75,5.74,90,5.69,110,5.5,120,5.39,135,4.94,146,4.390633,150,4.2
8,41.2,5.435831,52,6.13,60,6.45,75,6.7,90,6.66,110,6.67,120,6.53,135,6.01,150,5.25,151,5.190827
10,42,6.162998,52,6.85,60,7.1,75,7.27,90,7.28,110,7.41,120,7.33,135,6.97,150,6.166101
12,42,6.5936,52,7.21,60,7.4,75,7.56,90,7.6,110,7.78,120,7.74,135,7.52,150,6.99,154,6.797998
14,41.1,6.741304,52,7.37,60,7.58,75,7.76,90,7.83,110,8.07,120,8.06,135,7.86,150,7.5,167,6.907027
16,40.5,6.812151,52,7.46,60,7.67,75,7.92,90,8.02,110,8.25,120,8.38,135,8.18,150,7.82,180,7.29
20,40.5,6.904207,52,7.53,60,7.76,75,8.11,90,8.37,110,8.52,120,8.83,135,8.85,150,8.43,180,7.94

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.24	5.51	5.74	5.69	5.5	5.39	4.94	4.2
8	6.13	6.45	6.7	6.66	6.67	6.53	6.01	5.25
10	6.85	7.1	7.27	7.28	7.41	7.33	6.97	6.17
12	7.21	7.4	7.56	7.6	7.78	7.74	7.52	6.99
14	7.37	7.58	7.76	7.83	8.07	8.06	7.86	7.5
16	7.46	7.67	7.92	8.02	8.25	8.38	8.18	7.82
20	7.53	7.76	8.11	8.37	8.52	8.83	8.85	8.43

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42.8°	3.46	146°	3.64
8	41.2°	4.09	151°	4.54
10	42°	4.58	150°	5.34
12	42°	4.9	154°	6.11
14	41.1°	5.08	167°	6.73
16	40.5°	5.18	180°	7.29
20	40.5°	5.25	180°	7.94

Loading polar chart…