STEALTH — ORC Rating | RegattaPages

GPH

626.2

OSN

608

LOA

9.554 m

Displacement

3978 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.7341

Medium

0.9976

High

1.1475

Triple Offshore

Low

0.9445

Medium

1.2137

High

1.3664

Boat Specifications

Dimensions

Length overall: 9.554 m
Beam: 3.28 m
Draft: 2.08 m
Displacement: 3978 kg
Crew weight: 625 kg
Wetted surface: 22.99 m²

Sails

Mainsail: 36.09 m²
Genoa: 28.27 m²
Spinnaker: 77.83 m²
Asymmetric spinnaker: 59.42 m²

Design

Type: Swarbrick Custom 3
Builder: Steve Ward WA
Designer: KimSwarbrick
Year built: 1998

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.

6,42,4.723171,52,5.31,60,5.6,75,5.83,90,5.76,110,5.6,120,5.44,135,4.93,145.1,4.377238,150,4.15
8,40.7,5.566296,52,6.26,60,6.5,75,6.66,90,6.66,110,6.69,120,6.57,135,6.05,149.5,5.245876,150,5.22
10,39.2,6.181088,52,6.79,60,6.94,75,7.05,90,7.11,110,7.21,120,7.14,135,6.84,150,6.17,150.4,6.152997
12,37.2,6.390218,52,7.03,60,7.18,75,7.33,90,7.45,110,7.63,120,7.57,135,7.28,150,6.87,158.4,6.517695
14,36.2,6.46872,52,7.14,60,7.32,75,7.58,90,7.7,110,8.06,120,8.06,135,7.72,150,7.27,180,6.67
16,35.7,6.514108,52,7.2,60,7.4,75,7.77,90,8.02,110,8.47,120,8.57,135,8.22,150,7.67,180,7.11
20,35.4,6.538852,52,7.24,60,7.48,75,7.96,90,8.49,110,9.08,120,9.58,135,9.44,150,8.63,180,7.89

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
6	5.31	5.6	5.83	5.76	5.6	5.44	4.93	4.15
8	6.26	6.5	6.66	6.66	6.69	6.57	6.05	5.22
10	6.79	6.94	7.05	7.11	7.21	7.14	6.84	6.17
12	7.03	7.18	7.33	7.45	7.63	7.57	7.28	6.87
14	7.14	7.32	7.58	7.7	8.06	8.06	7.72	7.27
16	7.2	7.4	7.77	8.02	8.47	8.57	8.22	7.67
20	7.24	7.48	7.96	8.49	9.08	9.58	9.44	8.63

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
6	42°	3.51	145.1°	3.59
8	40.7°	4.22	149.5°	4.52
10	39.2°	4.79	150.4°	5.35
12	37.2°	5.09	158.4°	6.06
14	36.2°	5.22	180°	6.67
16	35.7°	5.29	180°	7.11
20	35.4°	5.33	180°	7.89

Loading polar chart…