STEALTH — ORC Rating | RegattaPages

GPH

634.3

OSN

612.3

LOA

9.69 m

Displacement

3978 kg

Triple-Number Ratings

Lower is faster

Triple Inshore

Low

0.6374

Medium

0.8782

High

1.0209

Triple Offshore

Low

0.819

Medium

1.0704

High

1.214

Boat Specifications

Dimensions

Length overall: 9.69 m
Beam: 3.28 m
Draft: 2.08 m
Displacement: 3978 kg
Crew weight: 623 kg
Wetted surface: 23 m²

Sails

Mainsail: 35.98 m²
Genoa: 19.49 m²
Spinnaker: 70.85 m²
Asymmetric spinnaker: 59.42 m²

Design

Type: Swarbrick Custom 3
Builder: Steve Ward WA
Designer: KimSwarbrick
Year built: 1998
Stability index: 110.5

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.

4,43,3.377299,52,3.82,60,4.04,75,4.16,90,4.06,110,4.03,120,3.88,135,3.4,145.1,2.93848,150,2.78
6,43,4.662587,52,5.16,60,5.4,75,5.54,90,5.53,110,5.53,120,5.35,135,4.77,145.1,4.243117,150,4.02
8,40.7,5.487154,52,6.11,60,6.33,75,6.46,90,6.58,110,6.63,120,6.47,135,5.91,149.6,5.159339,150,5.14
10,38.9,6.052093,52,6.68,60,6.83,75,6.95,90,7.14,110,7.23,120,7.11,135,6.74,150,6.09,153,5.937106
12,37.1,6.34416,52,6.99,60,7.13,75,7.26,90,7.51,110,7.68,120,7.58,135,7.24,150,6.81,159.2,6.439703
14,36.1,6.472853,52,7.16,60,7.33,75,7.53,90,7.78,110,8.12,120,8.04,135,7.69,150,7.27,166.4,6.790396
16,35.6,6.542855,52,7.26,60,7.45,75,7.75,90,7.96,110,8.52,120,8.5,135,8.16,150,7.69,173.6,7.104274
20,35.6,6.653542,52,7.37,60,7.61,75,8.01,90,8.37,110,9.19,120,9.59,135,9.22,150,8.59,175.8,7.861111
24,36.1,6.683252,52,7.42,60,7.68,75,8.17,90,8.69,110,9.77,120,10.85,135,11.18,150,9.8,167.2,8.901201

Wind Speed	52°	60°	75°	90°	110°	120°	135°	150°
4	3.82	4.04	4.16	4.06	4.03	3.88	3.4	2.78
6	5.16	5.4	5.54	5.53	5.53	5.35	4.77	4.02
8	6.11	6.33	6.46	6.58	6.63	6.47	5.91	5.14
10	6.68	6.83	6.95	7.14	7.23	7.11	6.74	6.09
12	6.99	7.13	7.26	7.51	7.68	7.58	7.24	6.81
14	7.16	7.33	7.53	7.78	8.12	8.04	7.69	7.27
16	7.26	7.45	7.75	7.96	8.52	8.5	8.16	7.69
20	7.37	7.61	8.01	8.37	9.19	9.59	9.22	8.59
24	7.42	7.68	8.17	8.69	9.77	10.85	11.18	9.8

Wind Speed	Beat Angle	Beat VMG	Run Angle	Run VMG
4	43°	2.47	145.1°	2.41
6	43°	3.41	145.1°	3.48
8	40.7°	4.16	149.6°	4.45
10	38.9°	4.71	153°	5.29
12	37.1°	5.06	159.2°	6.02
14	36.1°	5.23	166.4°	6.6
16	35.6°	5.32	173.6°	7.06
20	35.6°	5.41	175.8°	7.84
24	36.1°	5.4	167.2°	8.68

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