INTRUSION — ORC Rating

GPH

695.2

OSN

673.2

LOA

8.03 m

Displacement

1604 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.5807

Medium

0.793

High

0.9022

Triple Offshore

Low

0.7502

Medium

0.9744

High

1.1045

Boat Specifications

Dimensions

Length overall: 8.03 m
Beam: 2.77 m
Draft: 1.41 m
Displacement: 1604 kg
Crew weight: 426 kg
Wetted surface: 15.34 m²

Sails

Mainsail: 20.32 m²
Genoa: 18.05 m²
Spinnaker: 46.63 m²
Asymmetric spinnaker: 0 m²

Design

Type: S80
Builder: Swarbrick
Designer: Swarbrick
Year built: 1983

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.

6,43.1,4.149762,52,4.63,60,4.9,75,5.12,90,5.11,110,5.17,120,5.02,135,4.57,147,3.922875,150,3.79
8,42,4.925016,52,5.5,60,5.75,75,5.93,90,6.05,110,6.11,120,6.01,135,5.54,150,4.81,151,4.767786
10,40.9,5.464022,52,6.03,60,6.2,75,6.34,90,6.54,110,6.63,120,6.54,135,6.25,150,5.68,153,5.544292
12,39,5.72608,52,6.31,60,6.48,75,6.67,90,6.85,110,7.2,120,7.07,135,6.69,150,6.3,166,5.822967
14,39,5.841888,52,6.42,60,6.66,75,7.01,90,7.13,110,7.75,120,7.67,135,7.21,150,6.71,180,6.2
16,39.4,5.888187,52,6.46,60,6.73,75,7.23,90,7.49,110,8.14,120,8.39,135,7.81,150,7.19,180,6.58
20,41.2,5.887709,52,6.43,60,6.73,75,7.35,90,8.03,110,8.77,120,9.52,135,9.39,150,8.35,180,7.48

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	4.63	4.9	5.12	5.11	5.17	5.02	4.57	3.79
8	5.5	5.75	5.93	6.05	6.11	6.01	5.54	4.81
10	6.03	6.2	6.34	6.54	6.63	6.54	6.25	5.68
12	6.31	6.48	6.67	6.85	7.2	7.07	6.69	6.3
14	6.42	6.66	7.01	7.13	7.75	7.67	7.21	6.71
16	6.46	6.73	7.23	7.49	8.14	8.39	7.81	7.19
20	6.43	6.73	7.35	8.03	8.77	9.52	9.39	8.35

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	43.1°	3.03	147°	3.29
8	42°	3.66	151°	4.17
10	40.9°	4.13	153°	4.94
12	39°	4.45	166°	5.65
14	39°	4.54	180°	6.2
16	39.4°	4.55	180°	6.58
20	41.2°	4.43	180°	7.48

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